Harvia The Wall 6kW
Fenix touch panel on the wall, plus the MyHarvia app to warm it up from your phone
- Power
- 6 kW
- Stones
- 20 kg
- Supply
- 40 A, 230 V hard-wired
£1.97a session
£26a month
Outdoor Living Traditional Aluminium Sauna - 2 Person Outdoor Sauna
Model: OLAOT2B
Regular price £2,999.00
Unit price ⓘ Unit price based on the product measurement shown.
Outdoor Living
A traditional sauna for two, with an aluminium outside that shrugs off the weather
Most outdoor saunas are timber all the way through, so the outside takes the full force of the British weather. This one has a black aluminium shell, a warm spruce room inside and a full-height glass front. A proper Finnish sauna for two on your patio, with far less looking after.
2people
6 kWHarvia heater
0outside timber to treat
- 1ClearView™ glass frontFull-height tinted toughened glass
- 2RainSlope™ roofOverhangs the walls by 15 cm
- 3AluShield™ wallsBlack aluminium outside
- 4Spruce benchWith a spruce backrest
- 5Door handleDoor opens outwards
- 6Spruce-lined roomWarm timber inside
-
AluShield™ aluminium outside
The walls and frame are black aluminium. They won't rot, swell or warp the way outdoor timber can, and a wipe down keeps them looking smart.
-
Spruce where you sit
Inside it is lined with spruce, with a spruce bench and backrest, so it looks, feels and smells like a traditional sauna.
-
ClearView™ glass front
A full-height tinted toughened glass front and door let the light in. The door opens outwards, as a sauna door should.
-
RainSlope™ roof
A sloping roof overhangs the walls by 15 cm, so rain runs off and away rather than down the door.
-
Made for a patio
At 135 × 149.5 cm with the roof, it fits on a patio, a terrace or in a corner of the garden.
-
Harvia heat, your way
Choose a Harvia Vega 6 kW with dials on the heater, or Harvia The Wall 6 kW with the Fenix Wi-Fi panel so you can warm it up from your phone. A pre-drilled channel takes the cable to the heater.
Why people love a garden sauna
- A proper switch-off
- Twenty minutes of dry heat is a simple way to wind down after a long day.
- Warm whatever the weather
- Wet, cold or dark outside, it is a warm place to be in minutes, not hours.
- Time together
- Room for two to talk, with no screens and no distractions.
- Hot and cold
- Pair it with a cold shower or an ice bath for the full Nordic routine.
Why aluminium on the outside
Timber is lovely to sit in but hard work to keep outside. So this sauna puts timber where you sit and aluminium where the weather hits.
Nothing to soak up rain
Aluminium doesn't absorb water, so it can't swell, split or go soft the way outdoor timber can.
No staining or sealing
There is no outside timber to stain or re-seal each year. A wipe down keeps the black finish smart.
Steady through the seasons
Rain, frost and summer sun don't make it warp or twist, so the door and glass keep lining up.
Still a timber sauna inside
The room is lined with spruce, with a spruce bench and backrest, so it smells and feels traditional.
Up close
Real photos of the sauna's details.
The door handle 
The aluminium frame 
The spruce bench 
Air vents up top
What it needs from your patio
It is small, but it is still a building with a heater inside, so plan the base, the space around it and the power before it arrives.
A firm, level base
A concrete slab or paving that is level and can take the weight, about 450 kg built, plus the people inside. Don't stand it on grass or soil.
Space around it
Plan for 135 × 149.5 cm including the roof. The manual asks for at least 5 cm round the sides and 30 cm above. We suggest about 30 cm all round, so it is easy to look after. At 192 cm tall it sits well under the usual 2.5 m limit for garden buildings near a boundary, but check with your local council.
A dedicated electric supply
Both heaters are 6 kW and hard-wired, not plugged in. A qualified electrician runs a dedicated supply from your consumer unit on a standard 230 V supply.
135 × 149.5 × 192 cmWidth, depth and height, with the roof
119 × 105 cmFootprint of the walls
52 × 163.8 cmDoor, width and height
About 450 kgBuilt weight, before people
Built for a British patio
What is in the walls, the glass and the roof, and why it matters when it lives outside all year.
How this sauna is built
Outside
AluShield™ black aluminium.
Aluminium doesn't soak up rain, so it won't rot, swell or warp. There is nothing to stain or seal each year.
What to watch for elsewhere
Outdoor timber.
Timber left outside soaks up rain, greys, cups and splits, and needs treating to stay sound.
How this sauna is built
Inside
Spruce-lined, with a spruce bench.
You sit in a traditional timber sauna. The spruce stays inside, away from the rain.
What to watch for elsewhere
Plastic or panel interiors.
Some modern cabins skimp on the timber inside, which changes how the heat feels.
How this sauna is built
Glass
ClearView™ toughened glass front.
A full-height tinted toughened glass front and door, made for sauna heat. The door opens outwards.
What to watch for elsewhere
Small windows.
A small window keeps a small room dark and boxy.
How this sauna is built
Roof
RainSlope™ roof with a 15 cm overhang.
The roof slopes and overhangs the walls, so rain runs off and falls clear of the walls and door.
What to watch for elsewhere
Flush flat roofs.
A roof with no slope or overhang leaves water sitting on top and running down the door.
Your heater and what it costs to run
Both heaters are Harvia 6 kW, which suits a two-person room. The Wall comes with the Fenix Wi-Fi panel so you can warm it up from your phone. Pick one above and the figures here follow your choice.
Recommended
Harvia Vega 6kW
Dials on the heater for heat and timer
- Power
- 6 kW
- Stones
- 20 kg
- Supply
- 35 A, 230 V hard-wired
£1.97a session
£26a month
How we work this out: a 45-minute warm-up at full power, then a one-hour session with the heater on about half the time, so about 1.25 hours at full power. Electricity at 26.32p per kWh, the Ofgem price cap from October to December 2026. A month is 4.3 weeks. Your costs depend on your tariff, the weather and how hot you like it.
Your first sauna session
There is no wrong way to sauna, but this simple rhythm is how most Finns do it.
- Warm it up
Switch on well before you want to go in. Most people enjoy 70 to 90°C. Take a quick shower first.
- Sit in the heat
Stay 8 to 15 minutes. Ladle a little water on the stones for a burst of soft steam.
- Cool down
Step out for a cold shower, a dip in an ice bath or just fresh air.
- Rest and repeat
Sit down, drink some water, and when you are ready go back in. Two or three rounds is plenty.
A 1-year Outdoor Living warranty
Our own sauna, looked after by our UK team.
Your sauna comes with a 1-year Outdoor Living warranty, and your Harvia heater is covered by Harvia. If anything goes wrong, call us first and we'll sort it out.
1-year warranty
Help from our UK team
Easy to look after
The outside needs very little. The spruce inside likes a few simple habits.
Sit on a towel
It keeps the bench clean and stops sweat marks soaking into the spruce.
Let it dry out
After a session, leave the door ajar for a while so the inside dries. Don't use cleaning products or sealants inside.
Wipe the outside
A wipe with a damp cloth now and then keeps the black aluminium looking smart.
Check the stones
Re-stack the heater stones once a year and replace any that have crumbled.
What our customers say
Rated by our customers
Independent reviews from people who bought from us, collected and shown by Trustpilot.
Who we work with
Hull FC
Hull City
Queens Park Rangers
DIY SOS The Big Build
Delivery and installation
Here is how your sauna gets to your patio.
Order online
Choose your heater and place your order. Nothing is sent automatically.
We call you
Our team phones to check access, your base and your electrics, and to agree a delivery date.
It arrives
Flat-packed at the kerb, or delivered and built on your base by our installers.
Choose how far we take it
Pick your option at checkout.
Flat-pack kerbside delivery
Build it yourself£149Arrives packed at the nearest accessible point outside your property. The manual takes you through the build. It is a job for three people.
Delivery and installation
We build it for you£399Our installers deliver the sauna and build it on your prepared base. Have the base ready, and a qualified electrician lined up to connect the heater.
Tight access, such as a narrow side path, may affect delivery, so tell us about it when we call. Read the delivery guide
Questions people ask
The things people usually want to know before they buy.
How many people fit?
Two adults, on a spruce bench with a backrest.
Is it a real sauna inside?
Yes. The room is lined with spruce and has a spruce bench, and you heat it with a proper Harvia sauna heater with stones.
Will the aluminium rust or rot?
Aluminium doesn't rot, and it doesn't swell or warp with rain the way outdoor timber can. A wipe down now and then keeps it looking smart.
Do I need an electrician?
Yes. Both heaters are hard-wired to their own supply from your consumer unit, so a qualified electrician needs to connect it.
Can I warm it up from my phone?
Yes, with Harvia The Wall 6 kW and its Fenix Wi-Fi panel. You can switch it on and set the temperature in the MyHarvia app.
Can I pour water on the stones?
Yes. Both heaters hold stones. A ladle of water on the hot stones makes a burst of soft steam, called löyly.
Does it need planning permission?
Garden buildings under 2.5 m tall near a boundary usually don't, and this sauna is 192 cm tall. Rules vary, so check with your local council.
Which way does the door open?
Outwards, as a sauna door should, so it is always easy to get out.
Full specifications
Everything about the Outdoor Living Aluminium sauna in one place.
Size and weight
- Outside, with the roof
- W 135 × D 149.5 × H 192 cm
- Walls
- About 119 × 105 cm
- Door
- 52 × 163.8 cm
- Built weight
- About 450 kg
- Capacity
- 2 people
Build
- Outside
- AluShield™ black aluminium walls and frame
- Inside
- Spruce lining, spruce bench and backrest
- Roof
- RainSlope™ sloping roof, 15 cm overhang
- Glass
- ClearView™ tinted toughened glass front and door
Heater and power
- Heater
- Harvia, chosen above
- Options
- Vega 6 kW with dials, or The Wall 6 kW with Fenix Wi-Fi
- Stones
- About 20 kg
- Supply
- Hard-wired, 230 V, by an electrician
- Cable
- Pre-drilled channel to the heater
Space
- Clearance
- At least 5 cm round the sides and 30 cm above
- Base
- Firm, level concrete or paving
Warranty
- Sauna
- 1 year from Outdoor Living
- Heater
- Covered by Harvia
Sizes are from the Outdoor Living drawing and manual. AluShield, ClearView and RainSlope are Outdoor Living names. Running costs are estimates.