Steam & Oak Gas Barrel Sauna 3m with Anteroom (Electric or Wood-Fired)

NEW: First UK barrel sauna available with gas heat — Steam & Oak × FinSteam

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.

Why gas changes the equation

The real cost to your first sauna — gas vs electric

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.

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.)

What "gas-ready" means — engineered vents built into the cabin

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 vent configuration and the FinSteam heater are certified together under EU Gas Appliance Regulation 2016/426. Pick the electric or wood-fired variant and the sauna ships with the appropriate vent set for that heat type.

What's in the gas variant package

• The full barrel shell + anteroom + alder benches + 8mm tempered glass — same destination-sauna build as the electric/wood variants.
• Engineered gas-ready ventilation built in.
• FinSteam Aurora 81 R14S gas heater — 8.1 kW, AENOR-tested under Reg 2016/426. ODS auto-shutoff + flame monitoring. Includes Orbis 14 stone cage + Halo safety rail + Njord heat shield as standard.
• UK propane regulator + 1.2 m CE-marked gas hose.
• 40 kg pre-washed FinSteam sauna stones.

The Aurora 81 R14S retails standalone for £2,395 — the gas variant bundles it for £8,290 inc VAT. Zero warranty returns on the FinSteam heater in the last 12 months. More on the Aurora 81.

What you'll need to source locally

• A standard UK 13 kg Calor propane bottle — bought locally.
• A Gas Safe registered engineer for the gas connection on a fixed install.

Steam & Oak Barrel Sauna 3m with Anteroom — pick your heater at checkout

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 choice (heater options)

• ★ + FinSteam Aurora 81 R14S Gas Heater (UK first) — the new gas option. See full details above.
• Shell only — buy the cabin, source your own heater.
• + Electric Harvia PC70 6.8kW — sized for the interior, single-phase ~25A circuit.
• + Electric Harvia PC90 9kW — for faster heat-up.
• + Wood-Fired Etna 12 stove + flue kit — traditional log-fired ritual, no electrical install. Includes chimney pipe + flashing kit. (Wood-fired stove is rated for 6-12m³ saunas.)

The 3m barrel with anteroom is the full-size destination sauna — 3m main sauna room + 0.4m porch + 0.85m enclosed anteroom. Not a stretched compact model; a complete garden wellness building with a separate changing/cool-down room before the heated cabin. This is what genuine 6-person UK garden saunas look like.

Running cost + warm-up

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.

The anteroom changes everything

The 0.85m anteroom (sometimes called dressing room or vestibule) is the difference between "a sauna in the garden" and "a complete wellness building". Customers change out of outdoor clothing in the anteroom, hang dressing gowns, store wood for the wood-burning stove inside, even put a small bench for cool-down. The anteroom adds modest cost vs the no-anteroom equivalent but transforms the use-case for shared sessions or families with kids.

Build + finish

• Walls: 44mm Scandinavian spruce, kiln-dried to 14% moisture
• Benches: Alder, comfortable single-level seating across both sides
• Door + windows: 8mm tempered glass
• Roof: Bitumen shingles
• Heater: Choose FinSteam Aurora 81 R14S gas, Harvia 6.8kW or 9kW electric, or Etna 12 wood-fired stove at checkout — or shell-only if you have your own heater

What's included

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.

Delivery & site preparation

• Standard delivery: Free standard UK delivery
• Estimated transit: 2–10 working days
• Packaging: 1 oversized pallet, 3.4 × 1.2 × 1.0 m
• Site preparation: Outdoor saunas need a stable, level base ready before delivery
• Electrical (Harvia variants): dedicated 32A single-phase or 16A 3-phase supply, fitted by qualified electrician
• Gas (FinSteam variant): standard UK 13 kg Calor propane bottle, sourced locally. Gas Safe registered engineer required for fixed gas connection.
• Chimney (Etna 12 wood-fired variant): clearance from buildings + overhanging trees
• Installation: Self-assembly — typically 2 people, 10-16 hours over 1–2 days

Specifications

• Capacity: 4-6 person (proper shared destination sauna)
• Use: Outdoor only
• External dimensions (L × W × H): 3.4 m × 2.2 m × 2.1 m (incl. 0.4 m porch + 0.85 m anteroom)
• Sauna room depth: 1.75 m
• Anteroom: 0.85 m enclosed anteroom
• Wall thickness: 44mm Scandinavian spruce
• Door + window: 8mm tempered glass
• Bench config: Alder, single-level
• Packaged weight: ~900 kg total
• Warranty: 24-month warranty
• Manufacturer: Czyste Pole sp. z o.o. (Polish-built Steam & Oak commission)

💡 Not sure which configuration? Read our complete UK Sauna Buying Guide.

Want the canopy-roof variant for more weather protection at the door? See the 3m Canopy + Anteroom. Prefer the cube format with anteroom + two-level L-bench? See the 3.4m Premium L-Bench Cube.