{"product_id":"steam-oak-gas-cube-sauna-2-4m-double-shelf-electric-or-wood-fired","title":"Steam \u0026 Oak Gas Cube Sauna 2.4m Double-Shelf (Electric or Wood-Fired)","description":"\u003ch2\u003eNEW: First UK cube sauna available with gas heat — Steam \u0026amp; Oak × FinSteam\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePick \"+ FinSteam Aurora 81 R14S Gas Heater\" at checkout\u003c\/strong\u003e and your cube ships with engineered ventilation built for gas + a bundled \u003cstrong\u003eFinSteam Aurora 81 R14S gas heater package\u003c\/strong\u003e — ready to light on a UK propane bottle the day it lands. Steam \u0026amp; Oak is the only UK retailer offering this. \u003cstrong\u003eNo electrician, no chimney, no fire to tend. Hot in 15 minutes, turn a dial.\u003c\/strong\u003e The Aurora 81 is the only CE-marked electricity-free sauna gas heater on the European market (FinSteam's stated claim).\u003c\/p\u003e\n\n\u003ch3\u003eWhy gas changes the equation\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003eGas (new)\u003c\/th\u003e\n\u003cth\u003eWood\u003c\/th\u003e\n\u003cth\u003eElectric\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeat-up time\u003c\/td\u003e\n\u003ctd\u003e~15 min\u003c\/td\u003e\n\u003ctd\u003e30-45 min\u003c\/td\u003e\n\u003ctd\u003e30-60 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrician \/ wiring\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003ctd\u003e32A circuit (£1-2k)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChimney \/ flue\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003ctd\u003eRequired\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSmoke, ash, soot\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003ctd\u003eEvery session\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-grid \/ power-cut\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRunning cost \/ session\u003c\/td\u003e\n\u003ctd\u003e~£1.50-2.00\u003c\/td\u003e\n\u003ctd\u003e£2-4 logs\u003c\/td\u003e\n\u003ctd\u003e£1.75-3.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety\u003c\/td\u003e\n\u003ctd\u003eEU-cert, auto O₂ shut-off\u003c\/td\u003e\n\u003ctd\u003eOpen flame\u003c\/td\u003e\n\u003ctd\u003eElectrical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eThe real cost to your first sauna — gas vs electric\u003c\/h3\u003e\n\u003cp\u003eAn 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 \u003cstrong\u003e£800–£1,500\u003c\/strong\u003e, 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.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003eElectric (from)\u003c\/th\u003e\n\u003cth\u003eGas (FinSteam)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCabin + heater\u003c\/td\u003e\n\u003ctd\u003e£5,795\u003c\/td\u003e\n\u003ctd\u003e£7,790\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrician — dedicated circuit + Part P\u003c\/td\u003e\n\u003ctd\u003e£800–£1,500\u003c\/td\u003e\n\u003ctd\u003e£0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReady to use\u003c\/td\u003e\n\u003ctd\u003eAfter wiring is booked + signed off\u003c\/td\u003e\n\u003ctd\u003eDay of delivery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReal total\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e£6,595–£7,295\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e£7,790\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe ~£2,000 gap on the shelf narrows to roughly \u003cstrong\u003e£500–£1,200\u003c\/strong\u003e 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.)\u003c\/p\u003e\n\n\u003ch3\u003eWhat \"gas-ready\" means — engineered vents built into the cabin\u003c\/h3\u003e\n\u003cp\u003eThe gas variant ships with \u003cstrong\u003ewooden louvre vents at the FinSteam-specified sizes\u003c\/strong\u003e built in: intake ≥350 cm² low next to the heater (fresh air from outside), exhaust ≥250 cm² high in the opposite corner (discharged to outside). FinSteam exclude plastic disc \/ twist valves. Vent + heater certified together under EU Reg 2016\/426. Electric\/wood-fired variants ship with the appropriate vent set for that heat type.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's in the gas variant package\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eCube shell + porch + alder benches (double-shelf) + 8mm tempered glass.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngineered gas-ready ventilation\u003c\/strong\u003e built in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinSteam Aurora 81 R14S gas heater\u003c\/strong\u003e — 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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUK propane regulator + 1.2 m CE-marked gas hose\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e40 kg pre-washed FinSteam sauna stones\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAurora R14S standalone retail £2,395 — gas variant bundles at £7,790 inc VAT. \u003ca href=\"\/products\/premium-gas-sauna-heater-aurora-81-finsteam\"\u003eMore on the Aurora 81\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eWhat you'll need to source locally\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStandard UK 13 kg Calor propane bottle.\u003c\/li\u003e\n\u003cli\u003eGas Safe registered engineer for the gas connection on a fixed install.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eSteam \u0026amp; Oak Cube Sauna 2.4m Double-Shelf — pick your heater at checkout\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eSteam \u0026amp; 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.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eThe choice (heater options)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e★ + FinSteam Aurora 81 R14S Gas Heater (UK first)\u003c\/strong\u003e — the new gas option. Details above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShell only\u003c\/strong\u003e — buy the cabin, source your own heater.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e+ Electric Harvia PC70 6.8kW\u003c\/strong\u003e — sized for the interior, single-phase ~25A circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e+ Electric Harvia PC90 9kW\u003c\/strong\u003e — for faster heat-up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e+ Wood-Fired Etna 12 stove + flue kit\u003c\/strong\u003e — traditional log-fired ritual.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe double-shelf upgrade of the 2.4m cube — same external 2.35m cube + 0.4m porch + same 44mm Scandinavian spruce shell, but with a two-tier bench configuration inside. Two height levels means four adults can sit + recline properly during a shared session rather than packed elbow-to-elbow.\u003c\/p\u003e\n\n\u003ch3\u003eRunning cost + warm-up\u003c\/h3\u003e\n\u003cp\u003eGas (Aurora R14S): \u003cstrong\u003e~£1.50-£2.00 per session\u003c\/strong\u003e, 15-20 min heat-up. Electric (Harvia 6.8kW): £1.75-£2.25 per 90-min session, 30 min heat-up. Electric 9kW: £2.00-£2.50 per session. Wood (Etna 12): £2-£4 hardwood logs. See our \u003ca href=\"\/blogs\/news\/sauna-running-costs-uk\"\u003efull running-cost breakdown\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eWhy pay £500 more for the double-shelf bench\u003c\/h3\u003e\n\u003cp\u003eIn a 4-person sauna, single-level benches mean people sit shoulder-to-shoulder at one height — fine for a couple, cramped for 4 adults. The double-shelf gives a lower bench (cooler, for kids or heat-sensitive users) + an upper bench (hotter, where the löyly steam concentrates). Same external size as the standard 2.4m cube but a substantially different bathing experience for shared sessions.\u003c\/p\u003e\n\n\u003ch3\u003eBuilt from solid, slow-grown Scandinavian spruce\u003c\/h3\u003e\n\u003cp\u003eThis cabin is built the traditional way, from solid 44mm slow-grown Scandinavian spruce. The wall is the structure, not a thin cladding over a hidden frame, so what you see and sit against is the building itself. We use slow-grown timber on purpose: slow growth in a cold northern climate lays down tight, dense growth rings, which makes the wood stronger, more stable and more naturally resistant than fast-grown softwood, and lets it machine to a precise joint that stays tight. At 44mm this is a thicker solid wall than most barrels on the market, and that timber mass stores heat and gives it back evenly, for a steady, enveloping warmth rather than a heat that drops away the moment the door opens. There is no cavity to trap damp and no hidden insulation to fail, so it is as robust as it is simple. A sauna is roofed and driven hot and dry every session, which keeps rot at bay far better than the weather ever tests it, so this spruce makes a long-lived cabin that takes an oil or a colour beautifully. Prefer a darker, ultra-stable exterior, or the lowest possible winter running cost? We can supply thermowood or a fully insulated cabin too. See \u003ca href=\"\/blogs\/news\/thermowood-vs-slow-grown-spruce-sauna\"\u003eThermowood vs Slow-Grown Spruce\u003c\/a\u003e for the full comparison.\u003c\/p\u003e\n\n\u003ch3\u003eBuild + finish\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWalls:\u003c\/strong\u003e 44mm Scandinavian spruce, kiln-dried 14% moisture\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBenches:\u003c\/strong\u003e Alder, two-tier double shelf — lower + upper level\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoor + windows:\u003c\/strong\u003e 8mm tempered glass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoof:\u003c\/strong\u003e Bitumen shingles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e Choose FinSteam Aurora 81 R14S gas, Harvia electric 6.8\/9kW, or Etna 12 wood-fired at checkout\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cp\u003eSauna 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. 24-month warranty.\u003c\/p\u003e\n\n\u003ch3\u003eDelivery \u0026amp; site preparation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFree standard UK delivery. 2–10 working days transit.\u003c\/li\u003e\n\u003cli\u003e3 pallets, 2.4 × 1.2 × 1.0 m each.\u003c\/li\u003e\n\u003cli\u003eSite preparation: stable, level base before delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical (Harvia variants):\u003c\/strong\u003e 32A single-phase or 16A 3-phase, qualified electrician.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas (FinSteam variant):\u003c\/strong\u003e UK 13 kg Calor propane bottle local. Gas Safe registered engineer required for fixed gas connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChimney (Etna 12):\u003c\/strong\u003e clearance from buildings + overhanging trees.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Self-assembly — 2 people, 6-10 hours over 1-2 days.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 4-6 person (proper shared bathing, not packed)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse:\u003c\/strong\u003e Outdoor only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal dimensions (L × W × H):\u003c\/strong\u003e 2.35 m × 2.2 m × 2.2 m (incl. 0.4 m porch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSauna room depth:\u003c\/strong\u003e 1.75 m\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnteroom:\u003c\/strong\u003e 0.4 m covered porch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall thickness:\u003c\/strong\u003e 44mm Scandinavian spruce\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoor + window:\u003c\/strong\u003e 8mm tempered glass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBench config:\u003c\/strong\u003e Alder, two-tier double shelf\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaged weight:\u003c\/strong\u003e ~780 kg total\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 24-month warranty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Czyste Pole sp. z o.o. (Polish-built Steam \u0026amp; Oak commission)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e💡 Not sure which configuration? Read our \u003ca href=\"\/pages\/sauna-buying-guide-uk\"\u003ecomplete UK Sauna Buying Guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eWant the standard single-level bench at lower price? See the \u003ca href=\"\/products\/cube-sauna-2-4m-porch\"\u003e2.4m Cube with Porch\u003c\/a\u003e. Want full-size 3.4m cube with anteroom and L-shaped two-level benches? See the \u003ca href=\"\/products\/cube-sauna-3-4m-premium\"\u003e3.4m Premium L-Bench Cube\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Steam\u0026Oak","offers":[{"title":"Shell only","offer_id":58857277653373,"sku":"CUB24DS-SHELL","price":5195.0,"currency_code":"GBP","in_stock":true},{"title":"+ Electric Harvia PC70 6.8kW","offer_id":58857277686141,"sku":"CUB24DS-PC70","price":5795.0,"currency_code":"GBP","in_stock":true},{"title":"+ Electric Harvia PC90 9kW","offer_id":58857277718909,"sku":"CUB24DS-PC90","price":5995.0,"currency_code":"GBP","in_stock":true},{"title":"+ Wood-Fired Etna 12 stove","offer_id":58857277751677,"sku":"CUB24DS-WF-ETNA12","price":5895.0,"currency_code":"GBP","in_stock":true},{"title":"Gas — Botnia 81, no safety pack","offer_id":58857277784445,"sku":"CUB24DS-GAS-BOT-R14","price":7290.0,"currency_code":"GBP","in_stock":true},{"title":"Gas — Aurora 81, no safety pack","offer_id":58857277817213,"sku":"CUB24DS-GAS-AUR-R14","price":7490.0,"currency_code":"GBP","in_stock":true},{"title":"Gas — Botnia 81 with safety pack","offer_id":58857277849981,"sku":"CUB24DS-GAS-BOT-R14S","price":7590.0,"currency_code":"GBP","in_stock":true},{"title":"Gas — Aurora 81 with safety pack","offer_id":58857277882749,"sku":"CUB24DS-GAS-AUR-R14S","price":7790.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/6154\/0221\/files\/CUB24DS-SHELL_gas.png?v=1791315897","url":"https:\/\/sparklesspecialize.co.uk\/products\/steam-oak-gas-cube-sauna-2-4m-double-shelf-electric-or-wood-fired","provider":"Sparkles Specialize","version":"1.0","type":"link"}