FAQs

The AlumiTub’s not your average hot tub. Made to last. Powerfully engineered to perform. Built from premium, enduring and functional materials, its marine grade aluminum foundation and stainless steel construction were pioneered in 2001 with an innovative solution to address the shortcomings of wooden hot tubs.

Addressing the inherent drawbacks of cedar hot tubs while maintaining all that's beloved about them: the natural look, the connection to being outside, the aroma and timelessness, with the added performance, function and longevity of its marine grade aluminum and stainless steel materials - the AlumiTub was born to reinvent the cedar hot tub as they were.

Using enduring marine grade aluminum and stainless steel materials - chosen for their reliable, time-tested use in boats, aircraft, and the iconic Airstream, its construction ensures durability, longevity and performance. Forming a watertight seal, a pre-assembled, moveable tub that's non-porous and low maintenance with heat that knows no bounds - it's built better. No swelling. No constant resealing. No heating or winter performance issues. No worrying about maintenance or longevity. Set against a fuselage at altitude or a hull in salt water, a hot tub in a backyard is a gentle life for the material, which is precisely why it lasts.

Proven to perform in extreme winter conditions and field tested at -44°C (-47°F) to get hot and stay hot, it heats faster and holds its temperature efficiently and sustainably.

Finished with the finest quality wood in the world, Canadian Western Red Cedar is used inside and out. Renowned for its beauty, thermal qualities, resistance to warping, cracks, rot and bacterial growth, longevity and strength, we choose it for its form and function, found in BCs backyard and milled locally on the Sunshine Coast.

Pre-assembled for soaking in the same day it arrives, the AlumiTub needs no cranes, special equipment, professional installation, plumbing, or ongoing maintenance - just two hands to roll it and a flat place to land.

Engineered to address the shortcomings of cedar hot tubs, the AlumiTub was obsessively designed to outperform and outlast.

Never compromising on the natural beauty of wooden hot tubs - the AlumiTub’s packed with features to make your time in the wild easy, safe, low maintenance, and highly enjoyable for generations to come. It’s all things beloved about the cedar hot tub - upgraded for function, performance, flexibility and longevity.

AlumiTubs Wood Fired and Hybrid hot tubs are uniquely designed with an internal firebox, cool to touch under the water's surface. The firebox is separated from the seating area of the tub with a cedar protective fence to keep bodies away from the chimney.

The stainless steel chimney includes a spark-arresting chimney cap, and unlike bathtub shaped alternatives where people lay their heads next to the chimney and firebox, the AlumiTubs protective cedar fence creates safe separation without compromising on seating capacity. 

​​AlumiTubs design uses an internal wood fired, submerged hot tub stove because, fully immersed in water, it delivers heat ensuring no energy loss, transferring heat directly to the water for a faster and more efficient heat time. Compared to chofu (external) fireboxes which are similar to a wood stove outside the hot tub, the internally submerged firebox is not a tripping or contact hazard.

In addition, the Wood Fire and Hybrid tubs are built with an extra large firebox for a low-smoke, high-efficiency burn which significantly reduces emissions compared to less efficient designs that can have an effect on air quality. Every Wood Fired and Hybrid tub carries QR codes linking straight to firing and care instructions, so anyone using it can scan and read what to do without hunting for the manual. That matters most at rental properties, where guests, cleaners and property managers all need to know how to fire it safely.Preventing kids from unsupervised access is an essential safety measure for all hot tubs, and every AlumiTub can be fit with a lockable fabric lid or a cedar lid with additional locking straps. The steps which house the electric heating & filtration system can be removed, and options for a deeper/taller construction to limit accessibility from the ground are also available.

Maintaining water quality and safety is straightforward with AlumiTubs non-porous surface that's more hygienic than alternative materials, providing a smooth, clean surface that prevents hidden bacterial growth.

GFCI protects against electrical shock hazard by sensing electrical fault conditions and interrupting the electric power applied to the equipment system. The equipment control system is protected from the elements in a weather-tight enclosure. A qualified electrician must make all electrical connections to the equipment control box in accordance with the National Electrical Code and in accordance with any local electrical codes in effect at the time of installation. A bonding lug is provided on the outside of the equipment system electrical controls box.

The right system depends less on budget than on where the tub is going, how often you’ll use it, and what power you have.

Off-grid cabin, remote island, or no power at the tub: the Wood Fired. It heats with nothing but wood, in about 2, 3 or 5 hours by size. If water is hard to come by, a 120V plug-and-play filtration system keeps it clean for months at a time.

A backyard you’re in most weeks, year round: the Electric. Set a temperature and it holds it, with filtration running quietly in the background. Ready when you are, with no fire to build.

A cabin or second property you visit on weekends: the Hybrid. Heat it with wood when you’re there for the ritual, or bring it up to temperature by app before you arrive.

Somewhere with summer fire bans: the Hybrid or the Electric. A fire ban shouldn’t cost you a season, and the Hybrid keeps the wood option for the rest of the year.

A rental property, B&B or lodge: the Electric or the Hybrid. Both let you manage temperature and filtration from your phone between guests, without relying on anyone lighting a fire correctly.

Power is coming, but not yet: the Wood Fired with Future Compatibility Ports, fitted during the build at no cost so electric heat can be added later without drilling.

Still deciding is fine. You can change heating system any time up to 30 days before your tub ships, at no charge. Email hi@alumitubs.com

All three heating systems share the same core construction, including marine-grade aluminum, cedar, stainless steel, and insulated design. The difference is in how they heat and how they fit into daily life.

The Wood Fired uses an internal submerged firebox and heats without electricity. The Electric uses a dedicated electric heating and filtration system to maintain temperature and keep water clean for longer stretches. The Hybrid gives you both, combining wood-fired heat with electric heating and filtration.

The Hybrid is a true two in one hot tub with the flexibility to heat by wood fire, electricity, or both, designed to give you both ways to heat and maintain your tub. You can enjoy the full ritual of a wood-fired soak, rely on the electric system for steady temperature and filtration, or use both together depending on the season and how you like to use it. It offers the atmosphere of wood fire with the added convenience of electric support in the background, electric heat plan during fire ban season or wood fire heat during power outages, and the flexibility to use both simultaneously - keeping the water at a low temp and bringing it up the rest of the way by wood fire.

Yes. Retrofitting an existing Wood Fired AlumiTub with electric heating & filtration is a routine, well-practiced upgrade. The steps are included in the $1,500 filtration system, not a separate purchase. On a base Wood Fired without filtration, steps are an optional add-on. If there's a chance you'll want this down the road, ordering your tub with ports pre-installed skips the drilling step entirely.

It's possible, but not something we recommend. Gas heaters underperform below 5°C/41°F, and propane fails to ignite reliably below 2°C. Neither holds up through a real winter the way our systems are built to. Electric or Hybrid heating is the more dependable choice in cold weather.

Yes. The Hybrid can run entirely on its electric system. It's the combination of both the Electric and the Wood Fired system for the ultimate flexibility.

AlumiTubs are offered in three main diameters: 5ft Small, 6ft Standard, and 7ft Large. The Small suits more compact spaces and quieter soaks. The Standard size is the most versatile for everyday family use. The Large size gives the most room for gathering, longer limbs, and shared use without feeling crowded.

As a guide, the Wood Fired and Hybrid models comfortably suit around 2 people in the Small size, 5 people in the Standard size, and 8 people in the Large size. The Electric models suit around 4 people in the Small size, 7 people in the Standard size, and 10 people in the Large size, as the internal layout allows for more usable bathing space. In practice, comfort depends on how you like to soak, whether children are included, and whether you prefer a roomier or more social setup.

The standard depth is 38 inches, which is designed to comfortably cover the shoulders for most adults. Deeper 44-inch options are available on all systems (Wood Fired, Electric and Hybrid), and 48-inch options are also available for the Electric. Deeper tubs are designed for taller people (typically over 6ft), or projects wanting a deeper soak.

Each size has its own footprint, water volume, and filled weight. These details matter for site planning, decks, drainage, and access.

Small 5ft: 

• Water volume: 315 US gallons / 1200 litres 
• Dimensions: 5ft / 60 inches in diameter, 38 inches deep (44" or 48" depth option available)
• Weight: 200 lbs (90 kg) empty / 3200 lbs (1451 kg) filled

Standard 6ft:

• Water volume: 420 US gallons / 1600 litres
• Dimensions: 6ft / 72 inches in diameter, 38 inches deep (44" or 48" depth option available)
• Weight: 220 lbs (99 kg) empty / 5000 lbs (2268 kg) filled

Large 7ft: 

• Water volume: 650 US gallons / 2450 litres
• Dimensions: 7 ft / 84 inches in diameter, 38 inches deep (44" or 48" depth option available)
• Weight: 300 lbs (136 kg) empty / 7000 lbs (3175 kg) filled

Each AlumiTub ships by pallet, sized to the tub: Small 60″ x 46″ x 68″, Standard 72″ x 46″ x 80″, and Large 84″ x 46″ x 90″ (L x W x H) with add-ons packed inside.

You choose it when you order. The standard bench is 13.5″ from the base of the tub on a 38″ build, which puts 21.5″ of water over the seat at the recommended fill. On deeper builds you can keep the 13.5″ bench for more water over the shoulders, or raise it to 17.5″ on a 44″ build or 19.5″ on a 48″ build.

Because it has already proven itself everywhere that matters more than a backyard.

Marine-grade aluminum is what aircraft fuselages, Airstream trailers and working boats are made from. Those industries settled on it for the same reasons we did. It is light enough to move, strong enough to take decades of weather, and it does not rot, crack or delaminate. An Airstream built in the sixties is still on the road. A well-kept aluminum hull outlasts the person who bought it.

Set against a fuselage at altitude or a hull in salt water, a hot tub in a backyard is a gentle life for the material, which is precisely why it lasts.

It also does something a cedar tub can’t: it holds water without depending on the wood to swell. That means an AlumiTub can be drained, moved and left empty without consequence, filled with salt or fresh water, and wiped clean rather than scrubbed. It is 100% recyclable.

Stainless steel is the other metal people occasionally ask about, and it is a different material rather than a better one. Both protect themselves with a naturally forming oxide film, and in a tub kept within its water care ranges neither corrodes. Aircraft, boat hulls and Airstreams are riveted aluminum rather than stainless for the same reasons we are: a third the weight, far better heat transfer, a riveted construction that can be repaired by hand, and a metal that takes sea water, which ordinary stainless does not. What stainless tolerates is chlorine, which matters only where chlorine is required (sometimes over bromine in a commercial setting); an aluminum tub runs on less sanitizer, at 2 to 3 ppm bromine, because there is nowhere in it for biofilm to establish.

AlumiTubs bring together the warmth and beauty of cedar with the long-term stability of a marine-grade aluminum interior. Instead of relying on cedar, plastic or fiberglass to hold water, the aluminum construction creates a more durable and dependable foundation while preserving the natural look and feel that draws people to cedar in the first place. The result is a tub that is light, moveable, portable, naturally cleaner, more heat performant, and watertight from day one, unlike traditional wooden hot tubs. It is a more functional and practical approach to ownership, especially in demanding climates.

Yes, and it doesn't rust. Rust is iron oxide and there's no iron in the structure. What aluminum does is form a thin oxide layer that protects the metal underneath, which is why the surface goes from bright to matte over the first season and then holds. That's the metal doing its job.

Like any metal in water, aluminum responds to what's in the water, and the one that matters most is calcium hardness. Water very low in calcium is aggressive and draws minerals out of whatever it touches, which can leave small hard mineral deposits on the surface. They're cosmetic, they lift off with a plastic edge, and they don't reduce the thickness of the metal. The range is 150 to 250 ppm, and that single number prevents it.

Aluminum protects itself with a thin oxide layer that re-forms continuously, which is why it lasts for decades on boat hulls and aircraft.

Owners report tubs in regular use after 8, 10 and nearly 20 years, including Alberta winters and remote sites in Northern Manitoba.

Like any natural outdoor material, the tone of cedar will soften and silver over time, developing the lived-in character many owners love. The aluminum interior is designed for longevity and will develop its own patina with age. Both materials are chosen to age honestly and well outdoors, working with nature. Cedar can also be treated, sanded and stained to accomplish different aesthetic goals, or to refinish it to achieve a different wood tone over time. Every component is replaceable rather than disposable, which is the point: when something does eventually need attention, there's a part for it, instructions for fitting it, and us on the other end of an email. More on the 25 year structural warranty.

Keep the water in range and the aluminum looks after itself. Alkalinity 80 to 120 ppm, adjusted first. pH 7.4 to 7.8. Calcium hardness 150 to 250 ppm. Bromine 2 to 3 ppm, never above 3. A test strip that reads bromine will cover all of these. Bromine rather than chlorine. No salt systems, no copper based algaecides, no silver mineral cartridges. Several of those are standard in the acrylic spa world, which is why pool stores suggest them.

For cleaning, a soft cloth and a mild plant based cleanser. Nothing abrasive, and never let a cleanser dry on the surface.

Tubs with filtration also carry magnesium anodes, and the manual covers looking after them.

Marine grade aluminum is one of the most durable and long lasting materials available for hot tubs. Used for boats, planes and travel trailers, it's tough, lightweight, high performing and infinitely recyclable, which makes it both a sustainable and a practical hot tub material. Loved by over 10,000 families worldwide in all conditions, terrain, extreme weather and sensitive climates, and at every property type, the AlumiTub has endured in all environments.

Aluminum protects itself with a thin oxide layer that re-forms continuously, which is why it lasts for decades on boat hulls and aircraft. Everyday water care keeps it that way. How we protect the aluminum.

Cedar is a highly durable, world-renowned wood. Prized for its longevity, beauty and stability, it's naturally resistant to rot and decay, won't twist or warp, and is highly compatible with outdoor and wet environments. As a renewable material, it is biodegradable and harvested from responsibly managed forests.

When properly cared for, outdoor cedar products can last 20–40 years, and because cedar in the AlumiTub isn't relied on to form its structural integrity, it can be replaced with ease when needed. Cedar can be left to weather to a natural, silvery-grey patina, or it can be stained or sealed to maintain its original warm color.

Cedar needs no real maintenance in the AlumiTub apart from seasonal cleaning. Use a soft-bristled brush, water, and mild detergent on the cedar seats and firebox fence. Exterior cedar can be treated and stained so long as the product contains no copper.

AlumiTubs is backed by a warranty that reflects the long-term materials it is built from. The marine-grade aluminum structure and stainless steel components are covered by a 25 year structural warranty against leaks caused by faulty workmanship or materials. Natural aging in cedar, aluminum, and stainless steel is considered part of normal outdoor life, not a defect. Coverage applies to the original purchaser, and the full terms are set out on the warranty page.

AlumiTubs are designed to achieve a safe soaking temperature up to 104 degrees Fahrenheit.

The Wood Fired can easily achieve higher temperatures which can be useful for planning ahead for a later soak on an extremely cold day, and will retain its temperature indefinitely by keeping the lid on between soaks, adding approximately an armful of wood a day to maintain its temperature.

On the Electric and Hybrid models, the electric system allows you to manage water temperature anywhere from 50 to 104 degrees Fahrenheit, with app-based controls, timer-based efficiency settings, and a built-in touchpad for easy heat management.

That depends on the heating system, the size of the tub, the starting water temperature, and the conditions outside. 

As a guide, the Wood Fired heats in around 90 minutes for the Small, 2.5 hours for the Standard, and 4-5 hours for the Large using dry wood. The Hybrid can speed up that initial heat time by pairing wood-fired heat with electric support, while also giving you the option to maintain temperature automatically. Both the Hybrid and the Electric retain their heat automatically.

Yes. AlumiTubs are built with 360 degrees of insulation to reduce heat loss and hold temperature efficiently between soaks.

The Electric maintains a set temperature automatically. The Hybrid can do the same through its electric system while also giving you the option of wood-fired heat. The Wood Fired is built to get hot and stay hot, with just an armful of wood a day helping hold temperature once it is up to heat. How long it stays hot between adding wood to the firebox will still vary depending on use, whether the lid is on, and the weather.

Yes. AlumiTubs are built for year-round use, with insulation, efficient heat transfer, and cold-weather performance designed to support real winter soaking. The Electric is the most hands-off option for all-season use. The Hybrid adds flexibility where power access or usage patterns vary. The Wood Fired is equally suited to year-round use, offering a more elemental soaking experience. All options can be configured with filtration to keep the water clean for frequent use.

Yes. The Wood Fired is the natural choice for fully off-grid soaking, heating with wood alone and requiring no electricity for the soaking experience itself. It is designed for places where simplicity, self-sufficiency, and a more elemental ritual matter just as much as performance.

For buyers who want that same wood-fired experience with added support for water care, there is also a Wood Fired + Filtration option. This includes a concealed 120V plug-in filtration unit built into the cedar steps, helping keep the water clean and clear for longer between changes.

The Electric and the Hybrid are the most practical options in places where fire bans or burn restrictions are part of the year. The Hybrid gives you the flexibility of wood-fired soaking when conditions allow, with electric heating and filtration there when they do not. That means you are not relying on a single heat source and can keep using the tub more consistently across changing seasons and local restrictions.

All AlumiTubs can be paired with either a cedar lid or a lockable fabric lid. 

Both help reduce heat loss and improve heat retention, especially in colder weather. A good lid makes the tub more efficient to run, helps maintain temperature between soaks, and adds to the ease of year-round use.

All AlumiTubs can be paired with either a cedar lid or a lockable fabric lid. The Cedar Lid is designed to complement the tub's natural look. The Fabric Lid gives full coverage and fits all three heating systems, sized to your tub's diameter. Both help reduce heat loss and improve heat retention, especially in colder weather. A good lid makes the tub more efficient to run, helps maintain temperature between soaks, and adds to the ease of year-round use.

Note: The Fabric Lid is ASTM F1346-91 certified (lockable and rated to support 275 lbs).

Yes. AlumiTubs are built for real winter use, proven to perform in extremely cold conditions. With 360 degrees of insulation, optional insulated lids, and efficient heating systems designed to perform in freezing conditions, the AlumiTub will perform in all weather.

The Wood Fired offers a more elemental winter soaking experience, especially for owners who enjoy heating the tub with fire and using it regularly through the colder months. 

The Electric and Hybrid add more convenience, with automated temperature management and added freeze protection for a more hands-off approach.

That depends on the model and how long the tub will be left unattended. If you are using the tub regularly, keeping it heated and covered is often the simplest approach. On the Electric and Hybrid, the system can maintain temperature and offer added freeze protection between uses.

On the Wood Fired, owners who are not using the tub consistently through winter may prefer to drain it rather than leave it sitting full. If the tub is left unattended and filled with water, additional freeze-prevention tools such as a pond de-icer or trough heater would be required to prevent freezing - but the tub would still need emptying after long periods of time to maintain clean soaking water, so emptying it is often the better method.

On Electric & Hybrid tubs, built-in freeze protection mode will automatically engage the pump when the temperature sensor detects 44F degrees. If there’s risk of power outage, the tub can be powered off and drained to prevent freezing.

If your property will sit unattended for extended periods in freezing weather, the safest approach is usually to winterise the tub rather than leave it full. In practical terms, that means draining it completely, making sure no standing water remains, and covering it properly until you are ready to use it again. AlumiTubs are designed to make that process straightforward, especially because the aluminum interior can be fully drained and dried. If the tub won't be in use for an extended period of time, emptying the water is also the safest way to avoid water imbalances.

For properties that stay occupied and on-grid, some owners choose to keep water above freezing instead, but for long unattended stretches, a full winter shutdown is often the more reliable option.

Yes, if you plan to use it regularly through winter. AlumiTubs are designed for real cold-weather use and can be kept above freezing with the right routine. For the Wood Fired, that can be as simple as maintaining heat with an armful of wood a day. The Electric and Hybrid offer a more hands-off approach, with electric heat and added freeze protection between soaks. If the tub will be left unused for long periods in freezing weather, winterising is usually the better option: drain it fully, make sure no standing water remains, and cover it properly until you are ready to use it again.

No. AlumiTubs are designed to arrive pre-assembled and ready to place, with no crane, plumbing, or complicated on-site assembly required. In most cases, the tub is simply rolled into position and set on a flat, properly supported surface. The main exception is for models that require electrical connection, where a certified electrician is needed to make a hardwired connection and final tie-in.

AlumiTubs are designed to sit on a flat, solid, fully supportive surface. Depending on the model and the site, that can include grass, compacted gravel, concrete, deck installations, pavers, or other stable ground-level setups. The key is not a specialised foundation, but a level base that can comfortably support the filled weight of the tub.

Yes, provided the structure, support, and drainage are planned properly. AlumiTubs can suit deck installations and more integrated landscape settings, and the drain position can be adapted to work more cleanly with those layouts. The main consideration is making sure the base is level, properly supported, and designed with access and water drainage in mind. The Drain Kit accessory provides an easy way to empty the water using a garden hose, leading it to any convenient location. 

Note that the Wood Fired and Hybrid chimney must have a minimum 10ft clearance from buildings and flammable objects. For decks and patios the structure must be able to support 5000 lbs for the Standard hot tub and 7000 lbs for the Large. 

The Electric requires a 240v 4.0kw hardwired connection. A connection can be trenched to a convenient location on your property. The Electric is designed to take up minimal space in your electrical panel with a 18 amp draw and a 30 amp dedicated circuit with all components pre-assembled needing no further installation. 

For customers who choose the 120V heating unit for a Small or Standard Hybrid (as opposed to the 240V system; 120V is not offered on the Large), the tub requires no hardwiring or panel upgrades, but must be placed within 13ft of an outdoor receptacle.

Download the site planning drawings (PDF) for every size and system, or email hi@alumitubs.com with any questions.

AlumiTubs are built with a drain on the base of the tub and can be used with a Drain Kit to conveniently connect to a hose for emptying the water where you want it to go at the touch of a valve. Alternatively, the drain can be positioned on the side of the tub if preferred for decks and other landscape integrated settings. For those not wanting a drain, a battery held sump pump will empty the water quickly and conveniently. We’ll be happy to help recommend the best drainage solution for your unique assembly.

Setup is designed to be simple and relatively quick. Site prep support is provided by our team ahead of time, ensuring a flat, fully supportive surface is prepared before the tubs arrival. Once the tub is on site and in position, it can be set up within one to two hours by property owners themselves. If installing an electric system with a hardwired connection, a certified electrician is needed to make the final tie-in.

No. AlumiTubs are designed to arrive pre-assembled and light enough (ranging from 200-300lbs) to be rolled into place by hand, which is one of the practical advantages over many traditional hot tubs. If access is especially tight, stepped, or sloped, the AlumiTub can also be lifted into place, or a combination of rolling and lifting can be achieved with 2-3 people.

You can, but we'd recommend sticking with a hose. Filling takes about an hour either way, and permanent plumbing adds freeze-related maintenance considerations that a simple hose connection avoids.

Yes, this is a common customization. If you're planning a flush or in-ground install with the Drain Kit, think through drain access in advance. Depending on your build, a sump pump may work better than a gravity drain once the tub sits below grade.

On the Electric model, yes. Stair placement is flexible since it isn't tied to a firebox location. On the Hybrid, the firebox and step placement need to be planned together, so there's a bit more to work out up front. We'll walk through this with you once your deposit is placed and customize your tubs stair positioning based on your site needs.

The Electric comes with a pre-assembled electric heating and filtration system housed inside weather-proof cedar steps that sit against the side of the tub, fully concealed. The steps are included as standard on every Electric and Hybrid, and on any Wood Fired ordered with filtration. It is designed as a 240V system with an 18 amp draw, requiring a 30 amp dedicated circuit and a hardwired connection by a certified electrician.

The Hybrid pairs wood-fired heat with the Electric hot tubs integrated heating and filtration system, giving you the flexibility of both. It is available in either a 120V or 240V system and the two power options can be interchanged over time as needs evolve. The 120V option requires a 15-amp dedicated circuit and a standard outdoor receptacle within 13 feet of the weather-proof cedar steps. 

The 240V option requires an 18-amp draw, a 30-amp dedicated circuit, and a hardwired connection by a certified electrician. The system arrives pre-assembled, so once the power connection is in place, it is ready to use with a final tie-in. 

Yes. If your AlumiTub includes electric heating and filtration, it should have its own power supply. In simple terms, that means it should not share power with other lights, appliances, or outdoor outlets. 

For the Electric and Hybrid hardwired setup, yes. For lower-voltage configurations that use an outdoor receptacle, buyers should still make sure the circuit and outlet are suitable for the load and compliant with local code.

A 120V system is available for the Small and Standard Hybrid where a property's power is limited. The Wood Fired + Filtration configuration also uses a 120V plug-in system. Plugging in to an outdoor receptacle, it does not need a hardwired connection, only a 15-amp dedicated circuit. Limited by its heating capacity, the low voltage 120V heating system is designed to augment wood fired heat by keeping the water at 85 degrees Fahrenheit, making it incompatible for exclusive electric heat. 

By contrast, the 240V default electric heating & filtration system delivers strong electric performance, with faster heat-up and quicker recovery, reaching 104 degrees Fahrenheit without the use of wood fire. Buyers who will use the Hybrid exclusively with electric heat & filtration at any point will want the performance of the 240V heating & filtration system. 

If your property has limited power, a 120V system can be used to support filtration and to augment heating, and upgraded at a later date to a 240V hardwired connection with a simple upgrade.

Yes. Wi-Fi control is available as an add-on for the Electric and Hybrid models, giving you more flexibility in how you manage heat & filtration settings between soaks. You can maintain a steady temperature, lower it when the tub is not in use, and bring it back up on a schedule so it is ready when you want it. It is especially useful for second homes, guest properties, and anyone who wishes to conserve energy when the tub won't be in use.

Yes. Orders shipping to 230V/50Hz regions (the EU, Australia, and parts of Japan) use different electrical components than our standard North American 240V/120V setup. If you're ordering from one of these regions, contact hi@alumitubs.com before finalizing your electrical plan so we can confirm the right configuration for you.

The 30A @ 240V circuit requires a GFCI disconnect between your main panel and the tub. All electrical components are housed inside the cedar stair enclosure, which is watertight. If you're building your own enclosure rather than using the supplied stairs, it must be weatherproofed to protect the equipment from moisture.

That depends on the model. The Electric and Hybrid keep water clean through a built-in filtration system that continuously circulates and filters the water, making day-to-day care much simpler. The Wood Fired is a more elemental setup, with water typically changed more often depending on how the tub is used. For those who want the ritual of wood fire with added support for water care, the Wood Fired + Filtration option adds a concealed plug-in filtration unit within the cedar steps (included in every system as a fully concealed, easy to access unit - using the same design that the Electric is built with).

As a guide, the Electric and Hybrid models can keep water clean and clear for around three to four months with filtration and a consistent treatment routine. The Wood Fired on its own without filtration added is a simpler setup and is generally better suited to shorter water cycles, with many owners changing the water after a few weeks depending on use, bathing habits, and the conditions outside.

AlumiTubs are designed to work with a simple water care routine. Depending on your model, your water source, and how often you soak, that may include conventional hot tub treatments like bromine tablets, plant-enzyme treatments, pH and calcium adjusters, or a fresh fill routine, filling and draining the tub often, including from a natural body of water like the ocean or a lake. Bromine is distributed by a dispenser rather than added by hand: an in-line dispenser on Electric, Hybrid and Wood Fired with Filtration tubs, and a floating dispenser on tubs without filtration. AlumiTubs also now offers the Good Clean Living Natural Hot Tub Cleaner, a chlorine-free, plant-derived cleaning collection for hot and cold tubs with or without filtration.

The right water treatment plan depends on the type of water that will be used in the tub, whether the tub is being used frequently, periodically, or commercially. The AlumiTub manual outlines different water treatment routines that are easy to follow for different use cases.

Yes. AlumiTubs suit a simple water care routine. Many owners choose to keep things minimal by starting with clean water, rinsing before use, changing the water regularly, and using gentle treatment only as needed. 

On the Electric and Hybrid, built-in filtration helps support longer clean-water cycles. On the Wood Fired, a more natural routine can work well too, especially with lighter use and more frequent water changes. 

For those who want the wood-fired experience with longer-lasting water, there is also a Wood Fired + Filtration option, which adds a concealed filtration unit built into the cedar steps.

For a more natural approach, AlumiTubs also offers its own plant-based water care products.

On models with built-in filtration, rinse the filter cartridge with a hose about every two weeks. Soak it in The Filter Cleanser only when it no longer rinses clean, or after heavy use, and replace it every 3 to 4 months to keep water flow and clarity.

Wipe the aluminum interior with a soft cloth and a mild plant-based cleanser, usually when you drain and refill. Nothing abrasive, no pressure washing, and never vinegar, descalers or other acidic cleaners, because the aluminum protects itself with a thin surface layer that acids and abrasives remove. Brush the cedar seats and firebox fence with a soft-bristled brush, water and mild detergent. The full routine is in the aluminum hot tub care sheet.

Yes. Filtration can be added to the Wood Fired through the Wood Fired + Filtration option, which includes a concealed 120V plug-in filtration unit built into the cedar steps. It helps keep the water clean and clear for longer, up to around 3 to 4 months, and is a good fit for buyers who want the ritual of wood-fired soaking with less frequent draining.

Yes. AlumiTubs are built with a marine-grade aluminum foundation used in boats, which makes them compatible with ocean water. For lighter-use, weekend-style soaking, some owners keep things very simple. On the Wood Fired, ocean water changed every five to seven days keeps soaking simple before it is ready to be refreshed. For longer water cycles, especially on filtered models, a more consistent treatment routine is still recommended.

When using water treatments in any hot tub, it's important to check water chemistry using test strips to ensure bather safety.

Water in the AlumiTub should be maintained between 7.4 and 7.8 pH, with alkalinity between 80–120 ppm adjusted first, and calcium hardness between 150–250 ppm. Do not exceed 3 ppm bromine, or use chlorine, pucks, or treatments not approved by AlumiTubs. Bromine tablets held in a dispenser are the recommended sanitizer, maintained at 2-3 ppm: an in-line dispenser on Electric, Hybrid and Wood Fired with Filtration tubs, and a floating dispenser on tubs without filtration. If you are using a floater, keep it moving freely and remove it before soaking. With proper balance, less bromine is needed and it can be used as a safeguard, not a primary soaking treatment. Avoid using granular bromine. Undissolved powder can settle and create concentrated deposits.

If you're on well water that is very hard, dilute with filtered water or blend sources rather than softening it. Do not fill through a water softener: softeners remove calcium by design, and water with very low calcium is under-saturated and draws minerals from the surfaces it touches. Your water source changes the starting point. Rainwater in particular arrives with almost no hardness or alkalinity and needs correcting on every fill before sanitizer goes in. See the water chemistry guide for the full routine.

UV and ozone exist to do one thing: reduce how much sanitizer a spa needs. Water that’s kept properly in range does the same job, without another piece of equipment in the circuit.

Most spas need the help because of how they’re built. Jets, internal plumbing runs, sealed foam cavities and a filter chamber give water places to sit between soaks, and biofilm forms where you can’t reach. Sanitizer demand climbs, so UV or ozone gets added to bring it back down.

In an AlumiTub, water sits in a smooth aluminum vessel with a simple filter circuit, and everything it touches can be reached and cleaned by hand. Keep the water in range and demand stays low on its own. A floating dispenser holds bromine at 2 to 3 ppm and releases only as much as the water actually consumes.

There’s a chemistry reason as well. Bromine is what an aluminum interior calls for, and UV breaks bromine down as water passes through it, converting the active sanitizer back to an inactive form. Health Canada’s guidance on pool and spa products advises against pairing bromine products with ultra-violet or ozone devices.

Yes, but well water, especially water high in iron or minerals, requires some preparation. Use a hose filter to reduce impurities on fill, and test your water before and after balancing. Target hardness is 150–250 ppm. Avoid fully softened water, which arrives stripped of calcium and needs correcting before use.

Rainwater works too, and is common on off-grid properties. It needs the most attention of any source, because it arrives with near-zero hardness and alkalinity and a slightly acidic pH. Correct alkalinity to 80-120 ppm, then pH to 7.4-7.8, then hardness to 150-250 ppm, before adding sanitizer, on every fill.

Bromine tablets held at 2-3 ppm, in a dispenser rather than added by hand. Electric, Hybrid and Wood Fired with Filtration tubs use an in-line dispenser. Tubs without filtration use a floating dispenser, which should be kept moving freely and removed before soaking. Set the dispenser and check weekly rather than dosing by hand.

Avoid granulated bromine, which can settle on the base and create concentrated deposits on the surface.

Not compatible with an aluminum hot tub: chlorine in any form, chlorine pucks and floaters, salt chlorine generators, sodium bromide products and salt bromine generators, copper-based algaecides, and silver-based mineral cartridges. Several of these are standard in the acrylic spa world, which is why pool stores recommend them.

The Good Clean Living Water Care system was designed to make balancing water simple, safe and effective.

Choose your model and place a $500 CAD deposit to reserve the next available production slot. That’s all it takes to start. Nothing about your build is locked in yet.

Once your order comes through, you’ll get your own account, where your build lives. That’s where you finalise your add-ons, your depth, and your delivery preferences, at your own pace rather than at checkout. Your guaranteed ship date and remaining balance appear there once production scheduling confirms them.

Before your tub is built, we go through your selections with you. It’s a checkpoint rather than a formality: we look at what you’ve chosen against where the tub is going and how you plan to use it, and we tell you honestly what we’d build for you. Sometimes that means suggesting an add-on you hadn’t considered, like a titanium coil for a coastal property or filtration where water is hard to come by. Sometimes it means telling you that you don’t need something you’ve selected. Tell us about your site, your climate, your water source, how many people will use it and how often, and whether power is coming later.

You can change your size, your heating system, your add-ons, your depth or your delivery arrangements right up to 30 days before your ship date, at no charge. The remaining balance is due 30 days before shipment, and we’ll send a reminder as that date approaches.

Because each tub is built by hand in small weekly batches, orders are taken first come, first served, and ship dates move out as slots fill. Reserving early holds both your date and your current freight pricing. Occasionally a rush slot opens up, so email hi@alumitubs.com if your timing is tight.

The remaining balance is due 30 days before shipment. Once your deposit is placed, you'll have access to your own account where your guaranteed shipment date and final balance will appear once production scheduling confirms it, and we'll send a reminder as your payment date approaches.

Yes. Up to 30 days before your ship date you can change your size, change your heating system, add or remove add-ons, adjust your depth, or change your delivery arrangements. There's no fee for any of it.

That window exists so you land on the right tub. Most people order months ahead, and the time in between is for working out what actually suits your property, with our help. Tell us about your site, your climate, your water source, how many people will use it and how often, and whether power is coming later. We'll tell you honestly what we'd build for you, including when that's less than you were about to order.

Yes, AlumiTubs offers free shipping across Canada. US orders ship for a flat rate of $750 USD, with no sales tax added, and under current tariffs any duty is covered by AlumiTubs, so the price you're quoted is the price you pay. International shipping is also available, and buyers outside North America may need to pay local taxes depending on their country. See our Shipping & Pricing page for more details.

For many years we’ve successfully delivered thousands of handcrafted hot tubs throughout the United States, and we continue to do so weekly. Under current tariffs, any duty costs on your order are covered by AlumiTubs, so the price you’re quoted is the price you pay. If policies change before your tub ships, we’ll contact you well in advance to explain the impact and discuss your options. If you have any questions about your order or current trade policies, email hi@alumitubs.com.

Yes, international shipping is available to Japan, Iceland, Ireland, the UK, Denmark, Norway, Finland, Sweden, France, Germany, Portugal, Spain, Australia and New Zealand.

AlumiTubs covers the majority of international shipping costs, with approximately $1,000 - $2000 CAD typically due for delivery to most locations. Thanks to free trade agreements between Canada and most of Europe, as well as Australia and New Zealand and Japan, international customers usually only need to pay local taxes in addition to shipping. See our Shipping & Pricing page for more details

AlumiTubs are built to order in small weekly batches. Lead times vary by size and heating system, and current next-available ship dates are always published on our shipping and pricing page. Your guaranteed ship date is confirmed once your order is scheduled into production. Ship dates move out as slots fill, so reserving early holds the date, and the decisions can follow.

Your guaranteed shipment date is confirmed and shown in your account once production scheduling assigns it, so you’ll have a date you can rely on.

We guarantee the date your tub ships. Transit time after that depends on the carrier, the route and the season, so these are typical rather than guaranteed: 1 to 10 days in Canada and the US, 25 to 30 days to the UK and Europe, and 45 to 50 days to Australia, New Zealand and Japan.

Delivery is to your nearest freight depot by default, almost always within an hour of your property. The depot forklifts the crate straight into your truck or trailer. Curbside delivery to your property is available on Small and Standard tubs for an additional fee; email hi@alumitubs.com for a quote.

Your AlumiTub arrives pre-assembled, so there’s no on-site assembly. Crated it weighs 450 lbs (Small), 551 lbs (Standard) or 650 lbs (Large), and once uncrated the tub is light enough for two people to roll into place. It can be rolled off a truck bed or trailer using 2x6s with cleats. The pallet fits in a truck, a trailer, and many small boats.

The AlumiTub lineup includes a Wood Fired Hot Tub, a Hybrid Hot Tub and an Electric Cedar Hot Tub coming in 3 sizes comfortably seating up to 10 people.

Wood Fired from $10,095, Electric from $12,495, Hybrid from $14,495.

Place your order to reserve our next available shipping date with a $500 CAD deposit. The remaining balance isn't due until 30 days before shipping. Once your order's received you'll receive an account to finalize your order selections and custom options. We'll provide you with a pre-arrival guide and make customization and add-on recommendation's for your unique property needs.

Because it arrives finished, and because it is built to be the last one you buy.

Most wooden hot tubs ship flat-packed, as a kit you assemble. Shipping one assembled costs several times more, and we carry that cost so your first day with it is an hour of setup rather than a weekend of construction. Nothing about how well it holds water depends on how well it was put together at your end.

A traditional cedar tub relies on the wood swelling to seal. That is why they leak when drained, why they cannot easily be moved, and why they are difficult to leave empty over a winter. An AlumiTub is built on a marine-grade aluminum foundation, so it does none of those things.

It is also built to be adapted rather than replaced. Cedar, firebox, heater, pump and filtration are bolted, banded or slotted onto the structure, so any component can be reached and replaced by hand, and the heating system can change entirely as your property does. The structure is backed by a 25 year warranty.

A kit is cheaper to buy. An AlumiTub is built to still be in use in twenty-five years, which is a different question.

Yes. An AlumiTub can be enjoyed in different ways across the seasons, including as a cool summer plunge or splash pool. Some owners simply fill the tub with cold water or add ice for a refreshing cold plunge, while others build a broader hot-and-cold ritual around contrast therapy. The AlumiTub can also be built with ports for your own external chiller. Email hi@alumitubs.com to custom order a chiller-compatible tub.

Yes. AlumiTubs works with a wide range of properties and is open to more tailored project needs, whether that means a unique site, a design-led installation, or a more specialised commercial setting. If you are planning for hospitality, a retreat, a guest property, or a custom project, the team can help guide the right system and setup for the space and intended use.

Absolutely. We offer free consultation for all of our customers to help customize their AlumiTub for unique property needs. 

Choosing the right tub is a meaningful decision, and it is natural to have questions along the way. Whether you are weighing up different heating systems and options, planning for your property, or simply wanting to understand what to expect, the AlumiTub team is here to help. 

With decades of experience guiding customers with all property types through the process, we can help you feel clear, prepared, and confident before you place your order. You can reach the team directly at hi@alumitubs.com.

AlumiTubs are in use at thousands of guest accommodations across the globe. Providing a unique guest experience and a high functioning, hygienic alternative to other wood tubs, the Hybrid combines wood fire heat with the ease of heat & filtration management. The Electric and the Hybrid both provide virtual control for hosts to manage the tubs temperature & filtration settings from an app.