Wood-Fired Hot Tubs: Everything You Need to Know Before You Buy
No electricity, no pump, no jets — just a fire, water, and time. Here's what owning a wood-fired hot tub really looks like.
There's a specific kind of quiet that comes with a wood-fired hot tub. No hum of a pump, no glow of a control panel — just a fire under the water and steam rising into the cold air. If you've been looking at wood-fired hot tubs and trying to figure out whether one actually fits your backyard, your climate, and how much upkeep you're willing to do, this guide covers it: how they work, the construction choice that matters most, what to expect to buy, and what owning one is really like once the fire's out and the water needs changing.
You can browse the full hot tub lineup anytime — this guide is the "before you get there" version.
- Wood-fired hot tubs heat with an internal or external wood stove — fully off-grid, typically ready to soak in 2 to 4 hours depending on size and weather.
- The construction you pick matters more than the brand: bare cedar staves are cheaper and more atmospheric but need to stay wet to stay sealed; a shell-lined tub with a cedar skirt costs more but is leak-proof and easier to keep clean.
- Water care is more hands-on than most marketing lets on — expect more frequent changes than an electric spa, especially with bare cedar.
- Wood-fired tubs work through winter, but they need a plan: keep them in weekly use with a cover, or drain and dry them down for the season.
What a Wood-Fired Hot Tub Actually Is
A wood-fired hot tub heats water with a wood-burning stove instead of an electric element. The stove sits either inside the tub (an internal "submerged" stove) or outside it, connected by hoses. No electrical hookup, no pump — just a fire and time.
Every LeisureCraft hot tub uses an internal, submerged heater — the firebox sits inside the tub itself, below the waterline, with only the door and chimney above water. Because the fire is surrounded by water on every side, heat transfers straight into the tub rather than losing energy to open air, which is part of why our tubs heat faster than an external-stove design. A wood fence built into the tub keeps bathers clear of the hot firebox, and the chimney stays well out of reach.
Heat rises naturally through the water (no pump needed), which means the top of the tub warms up before the bottom does. A quick stir with a paddle evens things out before you get in — small habit, but it's the difference between a lukewarm ankle and an accurate read on the thermometer.
Heat-up time depends on the tub. The Evolution is the fastest in our lineup at around 2 hours; the Original, Cascade, and Starlight typically reach soaking temperature in under 3 hours. Cold weather, wind, and how full the tub is all affect that number — budget extra time on a January evening versus a mild fall one.
Construction Types: Bare Cedar vs. Shell-and-Skirt
A wood-fired hot tub is built one of two ways — all-wood stave construction that seals by swelling when wet, or a waterproof shell (HDPE or aluminum) wrapped in a cedar skirt. The shell version costs more but doesn't depend on staying full to stay watertight.
This is the decision that shapes everything else about ownership, more than which brand you buy from.
Stave-built cedar is the traditional cooperage style — vertical cedar staves held together by stainless steel bands, the same principle as a wine barrel. It seals because the wood swells once it's wet. The Original Cedar Hot Tub is built this way, in Western Red Cedar, and it's the closest thing to the classic image of a wood-fired cedar hot tub: nothing between you and the wood. The tradeoff is that it needs to stay filled to stay sealed — let it dry out for a season and you'll get leaks until the staves swell back up.
Shell-lined tubs put a waterproof liner inside a cedar exterior, so the seal doesn't depend on the wood at all. The Evolution uses a 3/8" HDPE liner inside a cedar shell; the Cascade and Starlight use an aluminum shell with a cedar skirt around the outside. These don't care whether they've sat empty over winter — fill them up and they're ready. They're also easier to keep clean, since a smooth liner doesn't hold onto grime the way bare wood can.
Neither is objectively better — it's a tradeoff between the most traditional experience and the least maintenance. If you want the option to soak occasionally without babying the shell, lined construction is the easier long-term ownership. If the appeal is the all-wood, nothing-synthetic feel of a genuine cedar hot tub, bare stave construction delivers that — you just commit to keeping it wet.
Left: the Original — stave-built construction, stainless bands hold cedar staves that seal by swelling. Right: the Evolution — shell-and-skirt construction, a waterproof liner visible behind the cedar exterior.
Buying Considerations: Size, Siting, and What to Check Before You Order
Size for how you'll actually use the tub, not the maximum headcount — a smaller tub heats faster and uses less wood. Beyond size, the site needs a level, load-bearing base, clearance around the firebox, and a drainage plan.
It's tempting to size up "in case people come over," but a tub built for five people takes longer to heat and more wood to maintain than a two-person tub you'll use on a random Tuesday. Match the size to your regular use, not your biggest party.
A few things worth checking before you order:
Base: a filled tub is heavy — think tonnes, not pounds — so it needs a flat, stable, load-bearing surface. A deck built for foot traffic isn't automatically built for this; check with whoever built it, or plan a dedicated pad.
Firebox clearance: you'll be loading wood and managing a fire, so leave room to do that safely, with the chimney positioned away from where people sit and walk.
Drainage: every LeisureCraft tub has a floor drain that connects to a standard garden hose — plan where that water goes before the tub arrives, not after.
Water source: filling by hose is standard; if you're somewhere off-grid, a nearby lake or stream works too.
None of this is complicated, but it's the kind of thing that's much easier to plan before delivery than to retrofit after.
Wood-Fired vs. Electric: The Real Tradeoff
Wood-fired wins on being fully off-grid and costing nothing to run when you're not using it. Electric wins on convenience — set a temperature and it's just there. The right choice comes down to how often you'll actually soak.
An electric hot tub holds its temperature around the clock, which means it's always ready but also always drawing power, whether anyone's using it or not. A wood-fired tub only costs anything — fuel and your time — on the days you actually light it. If you're soaking a couple of times a week, that gap matters. If you're the type to jump in nightly, the convenience of electric starts to outweigh the savings.
The other real difference is installation. Wood-fired needs no 240V circuit and no professional electrical work — just a level base and a water source. That's a meaningfully simpler setup, especially at a cottage or an off-grid property where running power isn't a five-minute job.
What you give up is precision. An electric heater holds a thermostat-set temperature; a wood-fired tub is managed by fire size and airflow, and it takes a session or two to get a feel for it. Some people count that as part of the experience. Others find the built-in ritual of tending a fire is exactly why they wanted a wood-fired tub in the first place, not a downside to tolerate.
Not sure which construction fits your space?
Our team can walk you through bare cedar vs. shell-and-skirt based on how you'll actually use the tub.
Ongoing Care: What Owning One Actually Looks Like
Expect more hands-on water care than a "chemical-free, low-maintenance" pitch suggests — especially with bare cedar. New tubs will tint the water light brown for the first few weeks as tannins release; that's cosmetic, not a problem. Winterizing means either keeping the tub in weekly use with a cover, or draining and drying it down for the season.
This is the part that gets glossed over more than anything else in this category, so here's the honest version.
Water changes happen more often than you'd guess. A wood-fired tub isn't holding a constant temperature or running a filtration cycle the way an electric spa does, so most owners fill it, use it a handful of times, then drain and refill rather than trying to maintain the water indefinitely. Bare cedar in particular benefits from more frequent changes — the wood is porous, and staying on top of it is far easier than trying to fix cloudy or musty water after the fact. Our shell-lined tubs (Evolution, Cascade, Starlight) hold up a bit longer between changes since there's no bare wood in contact with the water, but "chemical-free and low-maintenance" still means an active routine, not a passive one.
New tubs discolour the water at first. Cedar naturally releases tannins when it's new, which can tint the water light brown — sometimes described as tea-coloured. It's cosmetic and it fades within the first few weeks as the tannins deplete. Nobody's tub is defective because of it.
Winterizing has two honest approaches, and neither is wrong: keep the tub in regular use through winter — heating it at least weekly and using an insulated cover between sessions — or drain it fully and let it dry down for the season. What you don't want is to let a full tub sit unused and freeze solid; ice can damage the stove and the tub itself. If you're draining for winter, expect a few uses' worth of minor leaking once you refill in spring, while bare-cedar staves swell back into their seal.
The keep-it-in-use approach: an insulated cover holds heat between sessions through the winter months.
Exterior cedar benefits from the same care as any outdoor cedar structure — an oil treatment every year or two keeps it from greying in the sun. If you already own a LeisureCraft sauna, it's the same routine you're used to.
The Four Models at a Glance
LeisureCraft builds four wood-fired hot tubs across two collections — three in Dundalk (Original, Evolution, Cascade), one in Canadian Timber (Starlight). No wood-fired hot tub in the Pure Cube lineup.
| Feature | Original | Evolution | Cascade | Starlight |
|---|---|---|---|---|
| Collection | Dundalk | Dundalk | Dundalk | Canadian Timber |
| Construction | Stave-built cedar | Cedar shell + HDPE | Aluminum + cedar | Aluminum + cedar |
| Typical heat-up | Under 3 hrs | ~2 hrs (fastest) | Under 3 hrs | Under 3 hrs |
| Seating | 3–5 people | Up to 5 people | 2 people | 1–2 people |
| Cold plunge use? | No | Yes, no heater | Yes, no heater | No |
Frequently Asked Questions
Most LeisureCraft models reach soaking temperature in under 3 hours, with the Evolution heating in about 2. Colder weather and a fuller tub both add time — budget more on a cold winter evening than a mild fall afternoon.
Not strictly. Most owners run their tub chemical-free by draining and refilling regularly rather than trying to maintain water long-term, the way you would with an electric spa. Chemicals are optional and mainly useful if you want to stretch the time between changes.
It varies quite a bit by tub size and outdoor temperature, so treat any specific number with caution — but expect to go through a meaningful pile of dry, seasoned wood for each full heat-up, more in winter than summer. If you've got your own wood supply, the running cost is close to nothing beyond your own time.
Yes, with a plan. Keep the tub in weekly use through winter with an insulated cover between soaks, or drain it fully and dry it down for the season. What doesn't work is leaving a full tub sitting unused in freezing temperatures — that risks damaging the stove and the tub itself.
A shell-lined tub (Evolution, Cascade, Starlight) can last decades with reasonable care, since the liner doesn't depend on staying wet to hold its seal. Bare cedar construction, like the Original, is typically good for 15 to 20 years with consistent care — shorter if it's allowed to dry out and re-swell repeatedly.
With the Evolution or Cascade, yes — order either without the heater and it works as a cold plunge, so one tub covers both sides of hot-and-cold soaking without a second footprint in your yard.
That depends more on how you'll use it than on the tub itself. If you're drawn to the off-grid ritual and you'll soak occasionally, a wood-fired tub is hard to beat: no power hookup, low running cost, and a genuinely different experience from flipping a switch. If you want to soak nightly without thinking about it, the fire-tending that makes a wood-fired tub what it is might feel like a chore instead of a ritual. It's a question of fit, not value.
Ready to Bring the Fire-Heated Soak Home?
Every LeisureCraft hot tub is built in Canada and available through our authorized dealer network.