A traditional Finnish sauna does not need a garden. These indoor cabins bring proper stove heat and löyly steam into a spare room, a garage conversion, a basement or a home gym, with insulated walls so they warm up quickly and hold their temperature on a modest heater.
What makes an indoor traditional sauna different
A traditional sauna heats the air with an electric stove and a basket of sauna stones, typically to 80 to 90°C. Ladle water over the stones and you get the burst of steam that defines a Finnish session. An indoor infrared sauna works differently: panels warm your body directly at a much lower air temperature, usually 45 to 60°C. If you cannot decide, a hybrid cabin gives you both, with a Finnish stove for 80 to 90°C sessions and infrared panels for gentler sessions up to 60°C.
Choosing the right size and heater
Two person cabins fit a footprint of around 150 x 130cm. Larger family cabins need closer to 200 x 175cm. Well insulated cabins like the Holl's Eccolo reach full temperature on a smaller stove than a poorly insulated room would need, which keeps running costs down. Our sauna heater sizing guide explains how cabin volume, insulation and glass affect the kW you need, and the running cost calculator shows what a session costs on your tariff.
Electrics and installation
Indoor stoves need a dedicated supply installed by a qualified electrician, sized to the heater. Check your consumer unit has capacity before ordering, and allow for ventilation in the room where the cabin will sit. Several models in this range can be assembled on site by our installation partners, quoted for your address.
Indoor traditional sauna FAQs
Can I put a traditional sauna in a spare room?
Yes. A two person cabin needs roughly 150 x 130cm of floor and a ceiling height above the cabin height, plus a dedicated electrical supply for the stove. A dry, level floor is ideal.
Is a traditional or infrared sauna better indoors?
Traditional saunas give higher air temperatures and steam; infrared saunas heat up faster and run at lower temperatures. If different people in your home want different experiences, a hybrid cabin covers both.
Looking for a garden sauna instead?
See our full range of outdoor saunas, or browse every indoor sauna including infrared models.
