{"product_id":"icon-220-xl-outdoor-cube-sauna","title":"ICON 220 XL: 4 Person Cube Sauna with Full Glass Front","description":"\u003cp\u003eA four person outdoor sauna in thermo treated timber, 2,260mm across and 2,310mm long, with the whole front wall in 8mm toughened bronze glass and the door set into it. It is the ICON 125's bigger brother: the same rounded cube, the same glass front, and a room that seats four on two levels of bench instead of three on one. It ships flat on a single pallet, 230cm long and about 900kg, which a tail lift lorry can set down on hard standing.\u003c\/p\u003e\n\u003ch3\u003eWhy it is built without insulation\u003c\/h3\u003e\n\u003cp\u003eThe sides and roof are 42mm solid staves and the back wall is 28mm tongue and groove. There is no insulation behind either, and that is the design rather than an economy. The mass of the timber is the insulation, which is how a stave built sauna works: it takes longer to bring up than an insulated cabin and it sheds heat faster once the heater is off. What you get in return is a cabin that behaves like a sauna rather than like a heated room, in a shape with no corners for heat to sit in.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThermo treated timber only.\u003c\/strong\u003e Thermo treatment is kiln modification with heat and steam rather than chemicals; it raises dimensional stability and resistance to rot, which is what a timber cabin standing in a British garden through a wet January is actually up against. The outside is painted at the factory before it ships, so it arrives finished, and the bitumen shingle roof comes in four colours at no difference in price. The cabin weighs about 900kg as a kit; add the heater, the stones and four adults and the loaded figure is nearer 1,300kg, which is the number to design the base around.\u003c\/p\u003e\n\u003ch3\u003eThe heater, and the only decision to make\u003c\/h3\u003e\n\u003cp\u003eThree heaters, all Harvia, all supplied with their stones. The maker's sheet puts the room at about 11 cubic metres, and a full glass wall asks more of a heater than a timber one, so the two electric heaters here are the 9kW columns rather than the 8kW wall heater fitted to the ICON 125. The wood burner sits toward the top of its published range for a room this size, which means allowing a little longer to come up on a cold evening.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHarvia Cilindro PC90, 9kW. Fitted as standard.\u003c\/strong\u003e A floor standing column rated for 8 to 14 cubic metres, holding 80kg of stones behind a steel mesh, with the timer and thermostat on the heater. It needs a dedicated circuit installed and certified by an electrician: 40 amps single phase in 10mm² cable, or 3 × 16A on three phase, and a room containing a sauna heater is a special location under Approved Document P, so the work is notifiable in England. That visit is a separate cost. We would rather tell you here than after you have ordered.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHarvia Cilindro PC90XW, 9kW, with Wi-Fi.\u003c\/strong\u003e The same column with 90kg of stones and a Xenio control panel that runs it from the MyHarvia app, so the cabin is hot when you walk out to it rather than when you remember to go and switch it on. The same dedicated circuit applies.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHarvia M3, wood burning.\u003c\/strong\u003e 16.5kW, rated for 6 to 13 cubic metres, 30kg of stones, with the chimney kit in the price. No supply, no electrician, no circuit, and no running cost tied to a unit rate. What it asks for instead is a flue through the roof, a basket of logs a session and a sweep twice a year.\u003c\/p\u003e","brand":"Tarnfell","offers":[{"title":"Harvia Cilindro PC90, 9kW electric","offer_id":55342442381654,"sku":"IM-ICON-220XL-G-PC90","price":7620.0,"currency_code":"GBP","in_stock":true},{"title":"Harvia Cilindro PC90XW, 9kW electric with Wi-Fi","offer_id":55342442414422,"sku":"IM-ICON-220XL-G-PC90XW","price":8120.0,"currency_code":"GBP","in_stock":true},{"title":"Harvia M3, wood burning","offer_id":55342442447190,"sku":"IM-ICON-220XL-G-M3","price":8220.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/9720\/0982\/files\/im-icon-220-xl-front-angle-tarnfell.webp?v=1789242899","url":"https:\/\/tarnfell.com\/products\/icon-220-xl-outdoor-cube-sauna","provider":"Tarnfell","version":"1.0","type":"link"}