Pick "+ FinSteam Aurora 81 R14S Gas Heater" at checkout and your barrel ships with engineered ventilation built for gas + a bundled FinSteam Aurora 81 R14S gas heater package — ready to light on a UK propane bottle the day it lands. Steam & Oak is the only UK retailer offering this. No electrician, no chimney, no fire to tend. Hot in 15 minutes, turn a dial. The Aurora 81 is the only CE-marked electricity-free sauna gas heater on the European market (FinSteam's stated claim) and the heater that powers the FinSteam NOIR Signature packages.
| Gas (new) | Wood | Electric | |
|---|---|---|---|
| Heat-up time | ~15 min, dial | 30-45 min, tend a fire | 30-60 min |
| Electrician / wiring | None | None | 32A circuit (£1-2k callout) |
| Chimney / flue | None | Required | None |
| Smoke, ash, soot | None | Every session | None |
| Off-grid / power-cut | Yes | Yes | No |
| Humidity | Naturally humid (combustion vapour) | Dry until löyly | Dry until löyly |
| Running cost / session | ~£1.50-2.00 | £2-4 logs | £1.75-3.25 |
| Safety | EU-cert, auto O₂ shut-off | Open flame | Electrical |
An electric sauna's shelf price isn't the price to your first löyly. A 6.8–9 kW electric heater needs its own dedicated circuit, wired by a qualified electrician and signed off under Part P — typically £800–£1,500, plus the wait to get one booked. The FinSteam gas heater connects to a UK propane bottle outside, like a patio heater: no dedicated circuit, no electrician for portable use, and it's hot on the day it arrives.
| Electric (from) | Gas (FinSteam) | |
|---|---|---|
| Cabin + heater | £4,795 | £6,790 |
| Electrician — dedicated circuit + Part P | £800–£1,500 | £0 |
| Ready to use | After wiring is booked + signed off | Day of delivery |
| Real total | £5,595–£6,295 | £6,790 |
The ~£2,000 gap on the shelf narrows to roughly £500–£1,200 once the electrician is in the sum — and the gas sauna doesn't wait on a sparky's diary. (Portable use needs no Gas Safe engineer; a fixed install does. A standard UK 13 kg Calor propane bottle runs the heater for a dozen-plus sessions.)
The gas variant ships with wooden louvre vents at the FinSteam-specified sizes built into the cabin: intake ≥350 cm² low next to the heater (drawing fresh air directly from outside), exhaust ≥250 cm² high in the opposite corner (discharged directly to outside). FinSteam explicitly exclude plastic disc / twist valves — the gas variant doesn't ship with those. The vent configuration and the FinSteam heater are certified together under EU Gas Appliance Regulation 2016/426. Pick the electric or wood-fired variant instead and the sauna ships with the appropriate vent set for that heat type — pick the heater at checkout and the build matches.
The Aurora 81 R14S retails standalone for £2,395 — the gas variant bundles it with the engineered cabin build at a single price (£6,790 inc VAT). Zero warranty returns on the FinSteam heater in the last 12 months. More on the Aurora 81.
Steam & Oak — one of the very few UK sauna brands that lets you choose gas, wood-fired OR electric on the same listing. Pick at checkout.
The 2.4m barrel extends the entry barrel with a 0.4m covered porch — the small detail that turns a sauna kit into a proper garden building. The porch is where people sit to cool down between löyly throws, change footwear, hang towels. 44mm Scandinavian spruce walls + alder benches + 8mm tempered glass throughout.
Configured with the FinSteam Aurora 81 R14S gas heater, running cost is approximately £2.00-£2.50 per 60-90 minute session (around 0.6 kg propane per session at a typical £47 / 13 kg Calor refill). Warm-up: 15-20 minutes from cold to 70-75°C.
Configured with a Harvia 6.8kW electric heater, this sauna runs at £1.75–£2.25 per 90-minute session at the 2026 price cap. Warm-up takes around 30 minutes. Configured with a 9kW Harvia, those numbers move to about £2.00–£2.50 per session. With the Etna 12 wood-burning stove, the running cost moves off the electricity bill entirely — typical hardwood log cost is £2–£4 per session. See our full running-cost breakdown.
Comparable 4-person UK barrels — our own Rustic Barrel 6ft is the closest at this capacity — don't have an integrated porch. The 0.4m covered space at the door is genuinely useful: somewhere to sit during cool-down without standing on wet grass, to remove boots before stepping inside, or to position a small wood log store next to the wood-fired heater. Practical detail, real quality-of-life difference.
Sauna shell, base beams, wooden panels (pre-cut + numbered), stainless steel tension bands, alder benches with backrests, 8mm tempered glass door, ventilation valve + grill (vent type matches selected heater), stainless steel floor drainage grid, bitumen roof shingles, fastener kit + assembly manual. Selected heater + stones included with the gas/Harvia/Etna variants. 24-month warranty.
💡 Not sure which configuration? Read our complete UK Sauna Buying Guide.
Want a smaller barrel? See the 1.8m Outdoor Barrel. Want a larger barrel with a separate changing area? See the 3m with Anteroom. Prefer the cube format at the same capacity? See the 2.4m Cube with Porch.
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