Ad Best barrel saunas UK 2026: 8 models compared, from £2,945
Barrel saunas from four UK retailers compared on length, timber, heater and real starting price, including which ones come without a heater. Prices checked 10 November 2026.
Quick answer
A two-to-four-person barrel sauna with an electric heater included costs about £3,495–£4,500 from the UK retailers we checked in November 2026, and four-to-six-person barrels with a heater start at £3,750 (CenturaHeat at Pro-Line Direct). Watch for shell-only prices: Steam & Oak's Vaat 200 starts at £2,945 without a heater. Check the heated volume against the heater's rating, and budget separately for a base, electrics and assembly.
Barrel saunas are the most recognisable garden sauna: curved timber staves held by steel bands, usually with a glass door at one end. We compared eight from Outdoor Living 365 (SaunaPlunge), Pro-Line Direct (CenturaHeat) and Steam & Oak. We haven’t tested them; specs are as the retailers publish them.
Read the price carefully
Some barrels are priced as a bare shell, with the heater as an option. Steam & Oak’s Vaat 200, Saaren 250 and Holvi 170 all start without a heater. The “from” prices below say which.
| Model | From | People | Heat | Power |
|---|---|---|---|---|
| SaunaPlunge Pennine Barrel (4 person) Outdoor Living 365 | £4,500 | Up to 4 | 6kW Harvia electric heater (included) | Hard-wired on a dedicated circuit by a qualified electrician |
| SaunaPlunge Pennine Barrel (6 person) Outdoor Living 365 | £5,800 | Up to 6 | 8kW Harvia electric heater (included) | Hard-wired on a dedicated circuit by a qualified electrician |
| CenturaHeat 4–6 person outdoor wood barrel Pro-Line Direct | £3,750 | 4–6 | 6,000W electric stove (included) | 32A |
| Steam & Oak Saaren 250 barrel with covered terrace Steam & Oak | £3,750 | 2–4 | Harvia Wall 6kW or 8kW, Harvia M-series wood-fired, or FinSteam gas | – |
| Rustic Barrel Sauna 6ft (Western red cedar) Steam & Oak | £3,895 | Up to 4 | 4.5kW electric as standard, 6kW or 9kW upgrades | – |
| Steam & Oak Vaat 200 barrel sauna Steam & Oak | £2,945 | – | Choice of Harvia Wall 6kW, Harvia Cilindro 6.8kW, Harvia M3 wood-fired or FinSteam gas | Electric heaters need their own supply; wood and gas versions need no electrics |
| Steam & Oak Holvi 170 thermowood barrel Steam & Oak | £5,145 | – | Harvia Cilindro 6.8kW, Harvia M3 wood-fired, or FinSteam gas | – |
| Holl's Orphée 5–6 person barrel Steam & Oak | £7,899 | 5–6 | Vulkano Black 9kW electric (included) | Retailer notes a 9kW heater needs a substantial dedicated supply |
The shortlist
Heater and fixed-price install option
SaunaPlunge Pennine Barrel (4 person)
From £4,500 at Outdoor Living 365
£4,500 including a 6kW Harvia heater. Price checked 10 November 2026.
- Capacity
- Up to 4 people
- Heat
- 6kW Harvia electric heater (included)
- Power
- Hard-wired on a dedicated circuit by a qualified electrician
- Size
- 1800 × 1800 × 1930mm
- Build
- Spruce, tiled roof
A 1.8m spruce barrel with roof tiling, LED backlighting and a half-moon rear window, sold with a 6kW Harvia heater for £4,500. Outdoor Living 365 delivers free and lists barrel installation at £850, so the cabin side of the budget is known before you order. The heater still needs an electrician and a dedicated circuit.
- Free UK delivery; the retailer lists barrel sauna installation as an £850 add-on.
- Retailer says to site it on level decking, paving or concrete, away from standing water.
See current price at Outdoor Living 365 Ad
Specs are as published by the retailer. We have not tested this product.
Same barrel, six people
SaunaPlunge Pennine Barrel (6 person)
From £5,800 at Outdoor Living 365
£5,800 including an 8kW Harvia heater. Price checked 10 November 2026.
- Capacity
- Up to 6 people
- Heat
- 8kW Harvia electric heater (included)
- Power
- Hard-wired on a dedicated circuit by a qualified electrician
- Build
- Spruce, tiled roof
The larger Pennine steps up to an 8kW Harvia heater for £5,800. The listing said stock was limited when we checked. An 8kW heater is a bigger load than 6kW, so confirm the circuit size with your electrician.
- The listing said stock was limited when we checked.
See current price at Outdoor Living 365 Ad
Specs are as published by the retailer. We have not tested this product.
Lowest price for 4–6 people
CenturaHeat 4–6 person outdoor wood barrel
From £3,750 at Pro-Line Direct
£3,750 (listed as reduced from £5,006). Price checked 10 November 2026.
- Capacity
- 4–6 people
- Heat
- 6,000W electric stove (included)
- Power
- 32A
- Size
- 1800 × 2400 × 1800mm (W × D × H)
- Build
- Canadian spruce
A 2.4m Canadian spruce barrel with a 6,000W stove, listed at £3,750 (shown as reduced from £5,006) and needing a 32A supply. It was the cheapest four-to-six-person barrel with a heater included at the retailers we checked.
See current price at Pro-Line Direct Ad
Specs are as published by the retailer. We have not tested this product.
Covered terrace, wood or electric
Steam & Oak Saaren 250 barrel with covered terrace
From £3,750 at Steam & Oak
£3,750 cabin only (spruce); £4,239 with Harvia Wall 6kW; £4,520 wood-fired. Price checked 10 November 2026.
- Capacity
- 2–4 people
- Heat
- Harvia Wall 6kW or 8kW, Harvia M-series wood-fired, or FinSteam gas
- Size
- 2.5m long; allow 250 × 205cm plus access
- Build
- 42mm Nordic spruce or thermowood
- Warranty
- 2 years
Shorter than the CenturaHeat at 2.5m overall, but with a 570mm covered terrace in front of a 1.8m sauna room (about 7.4m³). Prices: £3,750 bare in spruce, £4,239 with a Harvia Wall 6kW, £4,279 with the 8kW, or £4,520 with a Harvia wood-burning stove. Thermowood adds about £450.
See current price at Steam & Oak Ad
Specs are as published by the retailer. We have not tested this product.
Cedar at under £4,000
Rustic Barrel Sauna 6ft (Western red cedar)
From £3,895 at Steam & Oak
£3,895 with 4.5kW heater; £4,015–£4,045 with 9kW upgrade. Price checked 10 November 2026.
- Capacity
- Up to 4 people
- Heat
- 4.5kW electric as standard, 6kW or 9kW upgrades
- Size
- 185 × 185 × 200cm (W × D × H)
- Build
- Rustic Western red cedar
The only cedar barrel in this list: rustic Western red cedar, 1.85m across and long, for up to four people. The £3,895 price includes a 4.5kW heater; upgrading to 9kW costs £4,015–£4,045. Bear in mind a 9kW heater needs a much bigger supply than 4.5kW.
See current price at Steam & Oak Ad
Specs are as published by the retailer. We have not tested this product.
Smallest footprint
Steam & Oak Vaat 200 barrel sauna
From £2,945 at Steam & Oak
£2,945 shell only (spruce); £3,495 with Harvia Wall 6kW; thermowood from £3,595. Price checked 10 November 2026.
- Heat
- Choice of Harvia Wall 6kW, Harvia Cilindro 6.8kW, Harvia M3 wood-fired or FinSteam gas
- Power
- Electric heaters need their own supply; wood and gas versions need no electrics
- Size
- 2.0 × 1.6m; 0.9m² hot room
- Build
- 42mm Nordic spruce or thermowood
- Warranty
- 5-year manufacturer warranty if the timber is treated as recommended
At 2.0 × 1.6m with a 0.9m² hot room, the Vaat 200 is the most compact barrel here. £2,945 buys the spruce shell; £3,495 adds a Harvia Wall 6kW; £3,715 a Harvia M3 wood stove; thermowood starts at £3,595. Steam & Oak gives a 5-year manufacturer warranty provided the timber is treated as recommended.
See current price at Steam & Oak Ad
Specs are as published by the retailer. We have not tested this product.
Thermowood throughout
Steam & Oak Holvi 170 thermowood barrel
From £5,145 at Steam & Oak
£5,145 shell only; £5,865 with Harvia Cilindro 6.8kW; £5,915 wood-fired. Price checked 10 November 2026.
- Heat
- Harvia Cilindro 6.8kW, Harvia M3 wood-fired, or FinSteam gas
- Size
- 208cm high; 3.9m³ hot room
- Build
- 46mm thermowood staves
Built from 46mm thermowood staves with a 3.9m³ hot room. It’s £5,145 as a shell or £5,865 with Harvia’s 6.8kW Cilindro pillar heater; gas and wood-fired versions are also listed.
See current price at Steam & Oak Ad
Specs are as published by the retailer. We have not tested this product.
Five to six people, 9kW
Holl's Orphée 5–6 person barrel
From £7,899 at Steam & Oak
£7,899 including 9kW heater. Price checked 10 November 2026.
- Capacity
- 5–6 people
- Heat
- Vulkano Black 9kW electric (included)
- Power
- Retailer notes a 9kW heater needs a substantial dedicated supply
- Size
- 205 × 180 × 215cm
- Build
- 38mm FSC-certified timber
- Warranty
- 4 years on wood, 2 years on electrical parts
The biggest heater and the biggest group in this list, with a 9kW Vulkano Black included at £7,899. Holl’s offers 4 years on the timber and 2 on electrical parts. Check your supply first: Harvia’s manual for its own 9kW heater specifies a 40A fuse on single-phase power.
See current price at Steam & Oak Ad
Specs are as published by the retailer. We have not tested this product.
Barrel or cube?
A barrel’s round cross-section means less air to heat than a square room with the same footprint, and retailers make the point that there are no cold corners. A cube or cabin is easier to lay out: wider benches, flat walls for a full glass front, and space for a changing room. If you want a barrel with a changing area or porch, look at barrels with an anteroom or terrace like the Saaren.
What a barrel needs that the listing won’t show
- A level, well-drained base. Outdoor Living 365 suggests decking, paving or concrete, away from standing water.
- Treatment. Spruce needs an exterior finish after assembly. Several warranties depend on following the treatment instructions.
- An electrician. All the electric barrels here are hard-wired on a dedicated circuit. See our electrics guide.
- Height clearance. The barrels here are listed at roughly 1.8–2.2m tall. Within 2m of a boundary, outbuildings in England must stay under 2.5m to remain permitted development. See planning permission for a garden sauna.
Frequently asked questions
How much is a barrel sauna in the UK?
At the retailers we checked on 10 November 2026, barrel saunas with an electric heater ranged from £3,495 (Steam & Oak Vaat 200 with Harvia Wall 6kW, spruce) to £7,899 (Holl's Orphée with a 9kW heater). Larger thermowood barrels cost more than £10,000. Base, electrics and assembly are extra.
Are barrel saunas any good in the UK climate?
Retailers sell them specifically for UK gardens, and the round shape sheds rain. The practical points are timber treatment (untreated spruce needs an exterior finish), a level, well-drained base, and roof protection: some barrels come with roof tiles or shingles and some are bare staves. Ask what the warranty requires you to do.
What size heater does a barrel sauna need?
It depends on the heated volume. Steam & Oak gives its Saaren 250 barrel about 7.4m³ and pairs it with a Harvia Wall 6kW (rated 5–8m³) or 8kW (rated 7–12m³). Harvia's manual rates its 6.8kW Cilindro for 6–10m³ and the 9kW for 8–14m³.
Thermowood or spruce for a barrel sauna?
Spruce is cheaper (Steam & Oak's Vaat 200 shell is £2,945 in spruce and £3,595 in thermowood) but needs treating after assembly and periodically after that. Thermowood is heat-treated so it absorbs less moisture; it costs more.
Sources
We read each of these on or before 10 November 2026. Retailer links in this list are plain links, not affiliate links.
- Outdoor Living 365: Pennine Barrel 4 person
- Outdoor Living 365: Pennine Barrel 6 person
- Outdoor Living 365: Delivery & installation add-on prices
- Pro-Line Direct: CenturaHeat 4–6 person outdoor wood barrel
- Steam & Oak: Saaren 250 barrel sauna
- Steam & Oak: Rustic Barrel Sauna 6ft
- Steam & Oak: Vaat 200 barrel sauna
- Steam & Oak: Holvi 170 thermowood barrel
- Steam & Oak: Holl's Orphée barrel
- Harvia Cilindro PC70/PC90 installation manual