Mobile Sauna Groups — Portable Gas Sauna Tent 10 14 Person Dome

Steam & Oak is the first UK retail partner for FinSteam — bringing this Finnish portable sauna system to British events, retreats, mobile sauna hire businesses and large holiday-let amenities. The group sauna built for hire, events, retreats — 10-14 people, hot in 15 The FinSteam Dome is a different proposition from the Fritid range. Octagonal 4 × 4 metres, 20 m³ of insulated space, designed to seat 10 to 14 people comfortably. It runs on two FinSteam 8.1 kW gas heaters in tandem (Botnia 81 or Aurora 81), hot in 15-20 minutes from cold, no electricity, no chimney, no flue penetration of any building. Built for sauna hire operators, retreat venues, festivals, wedding companies, athletic clubs, and large holiday-let amenities — places where you need a real sauna on site without a power supply, a flue, or a fire watch. Who buys the Dome (and what business they're running) UK mobile sauna hire operators starting or scaling — the Dome is the flagship rentable single-unit. See our mobile sauna hire guide for the commercial case + per-session economics + venue-approval framing. Event companies and festival operators — wellness festivals, sports days, corporate days, weddings, recovery events. The Dome arrives on a trailer and is operational the same day. Retreat venues and wellness centres — especially off-grid sites where electric saunas can't reach and a fixed wood-fired sauna isn't practical. Large holiday lets and luxury Airbnb operators — where the sauna is the wellness amenity that books out a property at the higher tier and the unit needs to scale to a houseful. Athletic clubs / training groups / triathlon clubs — recovery sessions for groups after races or training blocks. Wedding venues and pop-up wellness operators — premium guest experiences without permanent infrastructure. Replacing a tired commercial wood-fired sauna tent — operators upgrading from PortaSauna HEXXL or similar wood-fired group tents who want clean gas heat, no fire watch, and faster turnaround between sessions. Why a gas group sauna (and why it beats wood-fired commercial setups) The commercial group-sauna market is split between fixed installations (high capex, planning, plumbing, electrics) and wood-fired group tents (continuous fire-tending, chimney safety, smoke complaints from neighbouring venues, 30-45 min warm-up that eats your session windows). The FinSteam Dome is the third option: Dome (gas) Wood-fired group tent Fixed commercial sauna Heat-up time ~15-20 min, twin dials 30-45 min, tend two fires 30-60 min Power needed Two propane bottles Firewood for two stoves Mains — heavy commercial circuit Chimney / flue None Required (×2) None Smoke + ash management None Continuous, ×2 None Fire watch required during sessions No Yes, ×2 No Off-grid / temporary venue ready Yes — propane only Yes — but with flue safety constraints No — needs site infrastructure Setup at a new venue Same day, 2 people, ~15 min Same day plus chimney compliance check Months of build Bookings per day per unit 7-9 sessions (~15 min reheat between) 4-5 (limited by reheat + fire management) 5-7 Capex £1,795 + 2× heaters Comparable to Dome £20,000+ A clever piece of engineering — the dual-heater certified safety case The Dome is the only NOIR / FinSteam tent designed around two heaters running together. It's not "a single-heater tent you can put a second heater in" — the Dome's vent openings, internal volume, fabric construction and dimensions are all spec'd around paired heater operation under EU Regulation 2016/426. Each heater holds an EU Type-Examination Certificate, AENOR-tested under the Gas Appliance Regulation. Each has an Oxygen Depletion Sensor that shuts the gas off at approximately 18% oxygen, and flame monitoring that cuts the gas instantly if the flame is lost. Zero warranty returns on the heater across the last 12 months. Practical commercial benefit: running two heaters gives you redundancy mid-session. If one bottle runs out or one heater shuts down for any reason, the other carries the booking to the end. For paid commercial sessions this matters — you don't refund a £25-per-head 14-person group because a single fuel source failed. What's in the Dome — every piece explained 1. The 3-layer engineered insulated fabric (commercial-grade construction) Same engineered Oxford construction as the Fritid range, scaled up to the Dome's much larger footprint: Outer layer: 100% Oxford 420D polyester with waterproof coating. Premium black. Handles weather across multiple commercial sessions — rain, snow, high humidity. 2000 mm waterproof rating. Middle layer: 100% polyester fibre fill, 150 g/m² — the thermal insulation that retains sauna heat across repeat hour-long bookings. Inner layer: 100% Oxford 210D polyester smooth heat-retaining liner — reflects heat, doesn't trap moisture. The 3-layer construction is what makes the Dome viable for commercial use. A single-skin tent would lose heat between sessions and require the dual heaters to work continuously