DownloadsFree, to plan and build
The Cabin Four Wood-Fired Outdoor Sauna, Wood-Burning Stove Included
Wood-burning stove and flue kit included
External size 240 × 220 cmFootprint and door, at a glance
That is 5.3 m² on the ground. A firm, level base is all it needs: slab, paving or compacted gravel.
01Your stove
Takes logs up to 400 mm. Fired from inside the room, flue Ø115 mm.
02Choose your door
The black door comes with Black Edition. No need to add it twice.
03Choose your extras optional
Fitted at the factoryBlack EditionGraphite roof and black-framed door. Replaces both.
Fitted during assemblyLED lighting kit, IP65Two lamps inside, one outside. Rated for damp conditions.
HarviaSauna stonesNot in the cabin price. The stove basket takes up to 80 kg.
04Add accessories optional
HarviaHarvia sauna set: pail, ladle, gauge and timerPail, ladle, gauge and timer in one go.
HarviaHarvia sauna pail and ladle, timberTimber pail and ladle, the two you actually reach for.
HarviaHarvia Black Steel sauna setMatt black stainless, for the Black Edition.
HarviaHarvia sauna thermo-hygrometer, alderTemperature and humidity on one alder plate.
4Living4Living sauna thermo-hygrometer, heat-treated alderThe same two readings, darker frame.
HarviaHarvia sauna sand timer, 15 minutesFifteen minutes, no battery to die in the heat.
Timber sauna thermometerThe simplest way to know where the room is.
HarviaHarvia Bluetooth sauna speaker, blackIPX6, rated to 65 °C. Keep it low, not by the ceiling.
RentoRento birch sauna whiskBirch leaves, bound by hand. Soak before the first use.
RentoRento sauna fragrance gift box, three by 400 mlThree fragrances for the water in the ladle.
Eucalyptus sauna fragrance, 500 mlEucalyptus, a few drops in the ladle.
Your build
You arrange the prepared base and the flue outlet through the roof during assembly. On-site assembly is not included.
Made to order · the factory builds it in 10 days before transit.
Stove and flueNo heater circuit needed. The flue kit is in the price and fits during assembly.
- The firebox sits inside the hot room with a glass door, so you feed it from where you sit.
- The stove stand, the stone cage and two heat shields come with it; the fitting is drawn step by step in the assembly manual.
- Flue kit supplied: single-wall stainless pipe Ø115, twin-wall pipe Ø115/195, damper, mono to thermo transition, rain cap, inner and outer heat shields, decorative rosette and a roof flashing, 450 × 450 mm.
- If your address is in a smoke control area, burning wood can be restricted. Check with your council before you order, or send us your postcode.
Waldenhaus saunas
Open the crate before you buy it.
1 of 4 · Your build
Your build, clearly listed
What comes in the crate, and what you arrange yourself.
- Seats
- 4two a side
- Hot room
- 206 × 175 cmwall to wall
- Stove
- 6 to 12 m³maker's rating, in the price
- On the ground
- 5.3 m²240 × 220 cm
- Crate
- 1340 × 120 × 100 cm
- Outside
- 240 × 220 cm
- Hot room
- 206 × 175 cm
- Benches
- 174 × 55 cm, one tier
- Door
- 1770 × 690 mm
In the crate
Comes with every Cabin Four. Tap a card for photos.
- The whole cabinOne crate, every part numbered · 7 photos
Wood-fired build in a honey finish, at dusk The stove behind the glass door, lit for the evening The stove between the benches The flue rises from the stove through the roof Two benches, one aisle Porch seat and the toughened glass door Bench, step and backrest before any finish
Not in the crate
Six things you arrange yourself.
2 of 4 · Base & site
Your base and the flue
Plan the pad, the route in and the flue before the crate arrives.
Mark out the base
The footprint and the door end.
- Mark 240 × 220 cmWith the door end facing where you want to walk in.
- Check the diagonalsBoth the same length, so the pad is square.
- Level the padNo larger than the footprint, with free drainage.
The cabin brings its own floor and base frame: three joists sit on the pad.
Six rules before you build
Read these before the pad goes down.
- 1Pad the size of the footprint
A slab that sticks out past the wall holds rain against it. 240 × 220 cm, no larger.
- 2Level and square
The three base joists go down level; measure both diagonals and make them equal before the walls go up.
- 3Free drainage
A little fall, or free drainage beneath the base, so the floor never sits wet.
- 4A route in for 2.35 m parts
The crate stops at the kerb. Walk the route to the plot first: side gate, corners, steps.
- 5Close to the house
You walk back from it in a towel. Face the glass door to the fence or the house, not the street.
- 6Check planning
Garden buildings are usually permitted development in England and Wales; height, boundary distance, conservation areas and listed settings change the answer. Planning Portal.
Bases you can build
Whichever you choose, keep it level, the size of the footprint, and draining freely.
- Concrete slab
The firmest base, and it stays level longest.
- Paving slabs
On a compacted bed, laid level to the size of the footprint.
- Compacted gravel
Well compacted and levelled, with free drainage beneath.
Smoke Control Areas and the flue
Two checks decide whether you can burn wood at your address.
- 1Smoke Control Areas
Councils declare them street by street. Put your postcode in below: we tell you which council decides, and we confirm the exact address with them before anything is built. Wood burning in these areas is restricted unless the appliance is on Defra's exempt list.
- 2The flue and the stove
Building work under Part J in England and Wales: notify building control, or use an installer registered with a competent-person scheme. The manual gives the clearances, the heat shields and the roof pass-through.
Before you order
Can you burn wood at your address?
Councils declare smoke control areas street by street, and this stove is not on Defra’s exempt-appliance register. Put your postcode in and we will tell you which council decides, then check the exact address with them before anything is built.
There is no national map of these areas: each council declares its own, street by street, so your council is the only place that can confirm it. Defra publishes the register of exempt appliances, and this stove is not on it. We check your address with the council either way.
- Show this to your installer
- Wood-burning sauna stove, firebox inside the room, glass door; maker's rating 6 to 12 m³; logs up to 400 mm
- Flue Ø115 mm: single-wall pipe, twin-wall pipe Ø115/195, damper, transition, rain cap, inner and outer heat shields, rosette
- Roof penetration: flashing 450 × 450 mm, sealed into the shingle roof
- Stove stand, stone cage and both heat shields supplied; clearances as drawn in the assembly manual
- Not in the kit: a non-combustible plate under the stove and high-temperature flue sealant
- Part J, England and Wales: building control notification or a competent-person installer
- Neighbours and smoke
Burn dry, seasoned wood only; tell the neighbours before the first fire; think about where the flue stands relative to their windows and the wind. Where a garden is tight, that decides between wood-fired and electric. See the electric build.
3 of 4 · Assembly
Assembly, before you start
Two people, the assembly manual and ordinary tools. We do not offer assembly, for any cabin: a local joiner can quote from the manual.
- People
- 2one holds, one fixes
- Time
- 1 weekendnot an afternoon
- Shingles
- 83nailed on
- Fixings
- ≈1,150counted into the crate
- Manual
- 38 pagespublic before you order
From the assembly manual
Tap a step for the drawing.
Watch it, read it
The manual is public: read it before you order.
4 of 4 · Parts & warranty
If something is missing, damaged or breaks
Three things that can go wrong, and what happens next.
What happens next
Spare parts, not a new cabin.
- 1Missing or damaged on arrival
Count the parts against the packing list and photograph anything damaged before you sign. Email support@waldenhaus.uk or WhatsApp a photo and your order number, and we send the replacement part.
- 2A part fails later
Tell us with a photo. We answer within seven working days, and we replace parts, not whole cabins.
- 3The written warranty
From delivery, on the cabin and everything supplied in the crate: full terms, published before you order. The stove and flue kit are covered by the same written warranty.
Looking after it
Five things, none of them hard.
Your money, before the crate ships
- Weeks, not months
The factory builds your cabin in about ten days; order to kerb is typically two to four weeks.
- A photo before dispatch
We ask the works for a photograph of your packed crate with its packing list before it leaves, and pass it on to you.
- A company you can find
Waldenhaus Limited, 71-75 Shelton Street, London WC2H 9JQ.
Your statutory rights are not affected.
The cabin itself
The Cabin Four, photographed as it is
Works photographs of the actual cabin, plus visualised garden settings where marked. Shown with an exterior finish applied for the photographs. The cabin arrives unpainted and you choose the colour.
-
The cabinWood-fired build in a honey finish, photographed at dusk. -
In a garden · visualisedAt the end of a stepping-stone path · visualised setting -
The cabinLit for the evening: the stove behind the glass door. -
In a garden · visualisedOn a patio by the house · visualised setting -
In a garden · visualisedOn a jetty in winter · visualised setting -
InsideThe stove between the benches, fed from the room. -
InsideThe flue rises straight from the stove through the roof. -
InsideTwo benches, one aisle, lit for the evening. -
DetailsPorch seat and the 8 mm toughened glass door. -
DetailsTurned timber knob on the glass door. -
DetailsSteel tension strap and tensioner. -
DetailsStainless drain plate in the floor. -
DrawingFactory plan: 240 × 220 cm, hot room 206 × 175 cm.
1 / 13
Compare
Electric or wood-fired
Same cabin, two ways to heat it. The deciding questions are your electrics and your address.
| Electric | Wood-fired · this page | |
|---|---|---|
| Heat | Harvia Cilindro PC70, 6.8 kW, in the price | Wood-burning stove with its flue kit, in the price |
| You arrange | Its own 35 A circuit, wired by a qualified electrician | A Part J sign-off for the stove and flue, a plate under the stove, flue sealant |
| Before you order | Get the electrician's quote | Check your Smoke Control Area |
| Each session | Set the timer and come back | Light it, feed it and tend it |
| Upkeep | The cabin only | The cabin, and a chimney sweep at least once a year |
| The cabin | Identical: 240 × 220 cm, four seats, the same crate | Identical: 240 × 220 cm, four seats, the same crate |
| Price | £4,795 | £4,999 |
Sizes & prices
Pick the size, then the heat
The timber, the glass door and the roof are the same across the range. The size sets the length, the benches and the crate.
3The Cabin Three- 185 × 220 cm on the ground
- Hot room 206 × 155 cm, L-shaped benches
- Seats three
- Crate 240 × 120 × 100 cm
Wood-fired £4,199Electric £3,995
Choose this size →
This page4The Cabin Four- 240 × 220 cm on the ground
- Hot room 206 × 175 cm, benches on both side walls
- Seats four
- Crate 340 × 120 × 100 cm
Wood-fired £4,999Electric £4,795
One crate to your kerb. Then the last twenty metres are yours.
Made to order and sent as a single protective crate on a pallet lorry. Read this part before you order, because the route from the road to the plot is the one thing we cannot check for you.
- 340 × 120 × 100 cmone timber crate, strapped on a pallet
- From 770 kgthe cabin; the stove and flue add to it, confirmed on the dispatch note
- 4 pallet spacestoo long for a tail-lift, so it comes on a lorry with its own fork-lift
- 2 to 4 weeksorder to kerb, UK mainland, typically
The lorry
It comes on a lorry with a Moffett fork-lift and is set down at the nearest safe hard-standing: driveway or road, not grass or soft ground. The driver does not carry it into the garden. Our carrier calls to book the day.
After the kerb
The crate opens into wall boards, a door in its frame, benches, roof parts and the stove and flue kit. Plan for two people and a sack truck. The longest parts are 2.35 m, so walk the route to the plot first: a side gate, a corner, a step.
When it arrives
Count the parts against the packing list and photograph anything damaged before you sign. Tell us as soon as you can, and we send the replacement part. Spare parts, not a new cabin: that is how a missing board is solved.
Delivery charge
UK mainland delivery is in the price; a few areas carry a surcharge, shown before checkout. Put your postcode in to see yours.
Delivery
Delivery by postcode
Kerbside delivery to most of the UK mainland is in the price. A few places carry a surcharge because the pallet network charges us for them. Check your postcode: the figure shown is the one checkout uses.
All delivery zones
- UK mainlandIn the price
- Isle of Wight£49
- Scottish Highlands£79
- Northern Ireland£99
- Scottish Islands and Isle of Man£149
- Channel Islands, Isles of Scilly, BFPONot served
Questions people ask
Is four people realistic?
Yes, seated. Two on each bench, facing each other, with the stove on the back wall between you behind its guard. Each bench is 174 cm long and 55 cm deep, so the same room seats four or lets two lie down. It is a four-person cabin, not a six-person one with the number rounded up.
Do I need planning permission?
Garden buildings are usually permitted development in England and Wales; this cabin covers 5.3 m². Height, distance to a boundary, conservation areas, listed settings, flats, Scotland and Northern Ireland all change the answer. Check the Planning Portal and your council before you order.
Should I tell my home insurer?
Yes. A garden building of this value often sits above the outbuildings limit on a standard policy, and insurers expect to be told about a heated garden building. One call before delivery.
Where in the garden should it go?
Close to the house: you walk back from it in a towel. Face the glass door to the fence or the house, not the street; the matt-glass door option keeps the room private with the light on. Leave room to walk round it and to reach the straps.
Can I use it through a British winter?
Yes. It is an outdoor cabin and the stove is rated for the room. The two jobs that matter first are the exterior treatment before the first season and the strap check after the first month. Keep the logs dry and the chimney swept.
What does the stove burn?
Dry, seasoned logs up to 400 mm. Keep a covered log store near the cabin. The stove needs no heater circuit.
What exactly is it made of?
Solid timber boards for the walls, alder for the benches and backrests, an 8 mm toughened glass door. No glued sandwich panels and no PIR boards anywhere in the build. It ships untreated: the exterior finish is yours to choose.
Can I take it with me if I move house?
It is designed to be built once. The factory does not provide for taking it down and rebuilding it, so plan the site as permanent.
Electric or wood-fired?
Same cabin. Wood-fired needs no heater circuit, but does need a flue through the roof and, in a Smoke Control Area, a check with your council. Electric heats on a timer and needs its own 35 A circuit from your consumer unit. If the flue or the smoke check is the sticking point, look at the electric build.
Will we actually use it?
The honest risk with any sauna is the habit, not the build. Size for the people who will use it every week: a four-person room is for a household that sits together, or two people who like to lie down. If you have never kept a sauna habit, try a month at a local gym first.
Is a sauna safe for everyone?
We sell the cabin and do not give medical advice. If anyone in the household is pregnant or has a heart or blood-pressure condition, ask a GP before using any sauna.
Who am I buying from?
Waldenhaus Limited, 71-75 Shelton Street, London WC2H 9JQ. We sell garden structures for British weather: greenhouses first, and now saunas made to our specification.
What are my legal rights?
The Consumer Rights Act 2015 applies: goods must be as described, of satisfactory quality and fit for purpose. Distance orders carry a 14-day cancellation right under the Consumer Contracts Regulations 2013. These come from the law, whoever you buy from.
Do I need any electrical work?
Not for the heat. The only reason to bring power to the cabin is the lighting kit, a small circuit rather than a heater supply; if you add it, it is yours to arrange with a qualified electrician.
Build your Cabin Four.
Pick the door and the extras; the price follows your choices. Delivery surcharges, where they apply, show by postcode before checkout.
Stove and flue kit in the price · Written warranty · Kerbside delivery to the UK mainland, typically 2 to 4 weeks