Collection: Electric Sauna Heaters

Size the heater to your room volume in cubic feet: multiply length, width and height. Add capacity for glass doors, windows or uninsulated walls. Each listing shows the room volume range for every output option, and our electric heaters run from about 3 kW for small rooms to 20 kW for large ones.

Most electric sauna heaters for homes run on a dedicated 240V circuit, with the breaker and wire sized to the heater's amperage. Larger heaters may need a separate power unit or contactor. Have a licensed electrician confirm your panel has room before you order; our breaker size calculator gives a first estimate.

You can usually mount the heater and stack the stones yourself, but the wiring should be done by a licensed electrician, and some warranties require it. The electrician sizes the breaker and wire to the heater and checks the clearances to walls, benches and ceiling listed in the manual.

Built-in controls sit on the heater and keep the install simple. A separate control, such as Harvia Xenio or the HUUM UKU, mounts outside the hot room and adds timers, and some versions add WiFi so you can preheat from your phone. Each listing says which control is included.

Heat-up time depends on room size, insulation, heater output and the starting temperature. A well-insulated indoor room with a correctly sized heater heats much faster than a cold outdoor room in winter. Our heat-up time calculator gives an estimate for your room and heater.