Harvia R-991 - Rounded Sauna Heater Stones Olivine Diabase (2-4 in, 33 lbs) HUUM Staple foil vapor barrier behind

Staple foil vapor barrier behind tongue & groove sauna wood paneling on walls and ceiling

and Legend 150/240/SL/Duo models

5 to 2 hours – the fastest-heating wood-burning hot tub available

The Harvia Cilindro PC80 is a modern pillar style sauna heater featuring built-in controls

The Wi-Fi compatible HUUM HIVE Mini 9 is a floor-mounted 9-kilowatt electric sauna heater designed for sauna rooms from 282 to 530 cubic feet (CF)

Harvia R-991 - Rounded Sauna Heater Stones Olivine Diabase (2-4 in, 33 lbs) HUUM Staple foil vapor barrier behindRounded olivine diabase sauna stones provide a softer steam by allowing water to flow easily to the lower layers, increasing the heated surface area. Best used as a top layer, these stones help create more even steam and are compatible with both electric and wood burning sauna heaters.