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Price: 6995.00 GBP
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NOIR Dome — Commercial Gas Sauna | Up to 12 People | Twin 8.1 kW Heaters - Aurora — twin 8.1 kW + 60-min safety timers
Steam & Oak is the first UK retail partner for FinSteam. A 4 × 4 m octagonal sauna that seats up to 12 — and up to 14 when you need it. Two FinSteam 8.1 kW gas heaters bring it up to full heat in minutes and hold temperature through constant door-opening and back-to-back sessions. No fire to tend, no ash, no chimney, no electrician. For mobile-sauna hire, spas, retreats, festivals and glamping sites. Choose your heater The Dome takes two 8.1 kW gas heaters, and you pick which pair goes in: Botnia (£6,295) — the workhorse. Same 8.1 kW output, same built-in safety, simple manual control. The value choice for operators who run set sessions. Aurora (£6,995) — adds an integrated 60-minute safety timer to each heater (auto shut-off). Worth it in a busy public sauna where the heater runs unattended between guests. Our recommended commercial spec. Everything else in the package is identical — same tent, benches, safety kit and warranty. Why operators choose gas Ready in minutes, holds heat all day — gas heats directly, so it keeps up with a busy door. Up to 12 guests per session — real throughput from a single setup. No fire, ash, chimney or mains power — a two-person team can run it all day. Optional twin 60-minute safety timers (Aurora variant) auto shut-off — reassurance in a busy public sauna. 12-month warranty valid for commercial use. Built-in safety — oxygen-depletion cut-off, flame supervision and piezo ignition on both heaters. Bottles stay outside; only the hoses enter. Honest operator notes: the Dome runs two propane bottles, needs mandatory ventilation sized for a full house, and wants roughly 5 × 5 m of clear, level ground. Follow the included commercial guidance. What's included FinSteam Dome sauna tent (4 × 4 m, octagonal, up to 12 people) 2 × 8.1 kW gas heaters — your choice of Botnia (manual) or Aurora (with 60-minute safety timers) 3 × two-tier folding Western Red Cedar benches 2 × Halo safety rails + 2 × Njord heat shields Weatherproof cover 4 × outdoor deck chairs (cool-down seating) 2 × 40 kg sauna stones 2 × UK propane regulators + 1.2 m hoses Install, safety & commercial-use guide 12-month commercial warranty Free UK delivery How the gas heat works — sauna-ready in under 20 minutes Electric and wood heaters warm the room indirectly: they heat a big mass of stones first, which slowly warms the air — 30 to 45 minutes of waiting or fire-tending. A FinSteam gas heater is flueless and heats directly: it burns gas cleanly and puts the hot air and water vapour straight into the cabin, while the stones still heat for löyly. Nothing is stored first, nothing is lost up a chimney — so it's sauna-ready in under 20 minutes, on a dial. It also carries a soft, natural humidity from the moment it lights. Full explainer: how a gas sauna heater works. Weighing up fuels? Wood-fired vs gas vs electric. Heat-up time is typical tent set-up (manufacturer guidance); varies with sauna size, insulation and ventilation. The science behind it — FinSteam's engineering framework Direct Thermal Flow™. Heat from combustion reaches the sauna air, the stones and the structure simultaneously, from the first minute — instead of being stored in a stone mass first and released slowly. Same physics as any sauna; a fundamentally different engineering configuration. Humidity Balance™. Clean LPG combustion continuously releases gentle water vapour into the cabin, so the sauna starts with a pleasant base humidity instead of the harsh dry heat before the first ladle. Löyly works exactly as normal — this sits underneath it, it doesn't replace it. Sauna Climate Engineering™. Heat, moisture, thermal storage, airflow and ventilation managed as one coordinated system — not one number on a dial. Why the kW number misleads An independent, FINAS-accredited energy laboratory (Kymenlaakso University of Applied Sciences, Finland) tested seven wood-fired sauna heaters rated ~20 kW: measured heat output was just 57–72% of the nameplate figure, with 28–43% of the heat going straight up the chimney. A FinSteam heater is flueless — there is no chimney to lose heat up, so virtually all combustion heat, including the latent heat carried in the water vapour, stays inside the sauna. That's why an 8.1 kW FinSteam outperforms its label — you can't compare nameplate kW across heater types. An 11 kg cylinder runs ≈ 18 hours at continuous full power — and real sessions use less, because full power is mainly for heat-up. Lab study source: TM Rakennusmaailma / Kymenlaakso UAS study of wood-fired heaters; FinSteam was not part of that test. FinSteam's trademarked engineering framework · EU Type Examination Certificate A01/002220 (AENOR) · EN 449 · Independently tested by Applus+ Laboratories. No electrician. No chimney. Off-grid. It runs on standard propane bottles, so there's no electrician, no dedicated circuit and no Part P sign-off. No chimney means no smoke and no problem in a smoke-control area. Propane keeps working through a British winter — a genuine
Product information updated: 24 Sep 2026
Disclaimer: Product information, including title, description, and images, is sourced/provided by our affiliate partner: Steam & Oak.
Disclaimer: Some of the links on this website are affiliate links, meaning we may earn a commission if you click through and make a purchase. This comes at no additional cost to you.
By clicking the button above, you acknowledge that you will be redirected to a third-party website and agree to their terms and conditions.
Product information, including title, description, and images, is sourced/provided by our affiliate partner: Steam & Oak.
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Share this product with a friend:
Refer a friend and earn 0.05 CEC when they click the link, plus an additional 1.00 CEC if they register. Share this Product and boost your earnings together!