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

Steam & Oak Barrel Sauna 3m with Anteroom

Bring the sauna experience into your garden with the Steam & Oak 3m Barrel Sauna with Anteroom. Designed for shared sessions, slow evenings and regular recovery rituals, this spacious outdoor sauna combines traditional sauna materials with a separate changing room, comfortable alder benches and a choice of gas, electric or wood-fired heating.

Choose the heater that suits your space and lifestyle at checkout, or select the shell-only option if you already have a heater.

Choose your heater

• FinSteam Aurora 81 R14S Gas Heater – An electricity-free heating option designed for convenient outdoor sauna use. The package includes the gas heater, engineered ventilation, safety components, regulator, gas hose and sauna stones.
• Harvia PC70 6.8kW Electric Heater – A practical electric option for regular sauna sessions, requiring a suitable dedicated electrical supply.
• Harvia PC90 9kW Electric Heater – A higher-powered electric option for faster warm-up.
• Etna 12 Wood-Fired Stove with Flue Kit – Enjoy the traditional experience of heating your sauna with logs. The package includes chimney pipe and flashing kit.
• Shell Only – Choose the sauna cabin without a heater if you prefer to source your own.

The gas configuration includes engineered ventilation designed for the selected heater. The electric and wood-fired configurations are supplied with ventilation appropriate to their chosen heating system.

Why choose a gas-heated sauna?

The FinSteam Aurora 81 R14S offers an alternative to conventional electric and wood-fired heating. It runs on propane and does not require an electrical connection to operate, making it an option worth considering for gardens where installing a dedicated sauna circuit may be difficult.

Actual warm-up times and running costs vary with outdoor temperature, starting temperature, usage, energy prices and the selected heater.

Gas heating: what's included?

Select the FinSteam Aurora 81 R14S gas configuration to receive the following:

• FinSteam Aurora 81 R14S gas heater – 8.1kW output, with flame monitoring and an oxygen-depletion safety shut-off.
• Orbis 14 stone cage – Designed to hold the sauna stones.
• Halo safety rail – A protective rail around the heater.
• Njord heat shield – Included as part of the heater package.
• 40kg of pre-washed sauna stones.
• UK propane regulator and 1.2m CE-marked gas hose.
• Gas-ready ventilation – Wooden louvre vents built into the cabin in the specified positions and sizes.

The gas ventilation configuration includes a low-level fresh-air intake of at least 350cm² beside the heater and a high-level exhaust of at least 250cm² in the opposite corner, with both designed to connect directly to the outside.

The gas heater package is priced at £8,290 including VAT. The FinSteam Aurora 81 R14S heater is also available separately.

Explore the FinSteam Aurora 81 R14S gas heater.

Gas heating costs and setup

With the FinSteam Aurora 81 R14S gas heater, a typical 60–90 minute session costs approximately £2.00–£2.50, based on around 0.6kg of propane per session and a typical £47 refill for a 13kg Calor propane bottle. Warm-up from cold to approximately 70–75°C takes around 15–20 minutes under suitable conditions.

You'll need to source a standard UK 13kg Calor propane bottle locally. For a fixed gas installation, a Gas Safe registered engineer is required. Installation requirements depend on the intended setup, so check the heater's instructions and applicable safety requirements before use.

Compare the cost of gas and electric heating

When comparing heaters, remember to account for the cost of preparing your garden and installing the necessary services.

These figures are estimates for comparison. Actual electrical installation costs depend on your property and the work required. Gas installation costs, where applicable, are additional.

Running costs for each heating option

• FinSteam Aurora 81 R14S gas heater: Approximately £2.00–£2.50 per 60–90 minute session.
• Harvia PC70 6.8kW electric heater: Approximately £1.75–£2.25 per 90-minute session at the stated 2026 electricity price-cap assumptions.
• Harvia PC90 9kW electric heater: Approximately £2.00–£2.50 per session under the same assumptions.
• Etna 12 wood-fired stove: Approximately £2–£4 per session for typical hardwood logs.

These are indicative figures rather than guaranteed costs. Your actual expenditure will depend on energy prices, the length of each session and how frequently you use the sauna.

For more detail, read our guide to sauna running costs in the UK.

A separate anteroom for a more comfortable sauna ritual

The enclosed 0.85m anteroom makes this more than a simple garden sauna. It provides a dedicated space to change out of outdoor clothing, hang dressing gowns and prepare for your session before stepping into the heated room.

It can also be used to keep sauna essentials close at hand or create a small cool-down area between sessions. For families and groups, having a separate changing space helps make the whole experience more comfortable and practical.

Traditional materials and considered design

• Walls: 44mm kiln-dried Scandinavian spruce, with a stated moisture content of 14%.
• Benches: Alder wood, with comfortable single-level seating along both sides of the sauna room.
• Door and windows: 8mm tempered glass.
• Roof: Bitumen shingles.
• Ventilation: The vent configuration matches the selected heating system.
• Floor: Stainless steel drainage grid.

The 3m main sauna room is complemented by a 0.4m porch and a separate 0.85m enclosed anteroom. Together, they create a spacious outdoor wellness building designed for regular use and shared sauna sessions.

What's included?

• Sauna shell and base beams.
• Pre-cut, numbered wooden panels.
• Stainless steel tension bands.
• Alder benches with backrests.
• 8mm tempered-glass door.
• Ventilation valve and grill suitable for the selected heater.
• Stainless steel floor drainage grid.
• Bitumen roof shingles.
• Fastener kit and assembly manual.
• Selected heater and sauna stones with the relevant heater package.

Warranty: 24 months.

Delivery and installation

• Standard UK delivery: Free.
• Estimated transit time: 2–10 working days.
• Packaging: One oversized pallet measuring approximately 3.4 × 1.2 × 1.0m.
• Site preparation: Prepare a stable, level base before delivery.
• Assembly: Self-assembly, typically requiring two people and 10–16 hours over one or two days.

Additional requirements depend on your chosen heater:

• Electric heaters: Require a suitable dedicated supply, specified as 32A single-phase or 16A three-phase, installed by a qualified electrician.
• Gas heater: Requires a suitable propane bottle. A Gas Safe registered engineer is required for a fixed gas connection.
• Wood-fired stove: Requires the appropriate flue installation and suitable clearances from buildings and overhanging trees.

Specifications

• Capacity: 4–6 people.
• Suitable for: Outdoor use only.
• External dimensions (L × W × H): 3.4 × 2.2 × 2.1m, including the 0.4m porch and 0.85m anteroom.
• Main sauna room depth: 1.75m.
• Anteroom: 0.85m enclosed changing space.
• Wall thickness: 44mm Scandinavian spruce.
• Door and windows: 8mm tempered glass.
• Bench configuration: Alder, single-level seating.
• Packaged weight: Approximately 900kg.
• Warranty: 24 months.

Not sure which sauna configuration is right for your garden? Read our complete UK sauna buying guide.

Prefer extra weather protection around the entrance? Explore the 3m Barrel Sauna with Canopy and Anteroom. Looking for a more contemporary shape with a two-level L-bench? Discover the 3.4m Premium L-Bench Cube Sauna.