The Harvia Spirit SP80 is an 8 kW electric sauna heater for sauna rooms of 177 to 431 cubic feet, shaped with soft, organic curves and finished in black. Rounded sauna stones accent the curved steel body, which hangs on the wall using the included wall-mounting bracket. Harvia describes the heater as quick to reach the preferred temperature, and its Finnish craftsmanship is aimed at durability and reliability.
Two sensors handle safety: one monitors the heater itself while the other tracks the sauna temperature, helping prevent overheating. A safety device on top of the heater guards against accidental activation, which matters most when the sauna is started remotely. Remote operation runs through the Harvia Xenio Wall-Mounted Control or the Xenio Wi-Fi Package, both sold separately. The heater needs a minimum of 110 lbs of sauna stones, or four boxes of R-991, also sold separately. It operates on 240V single-phase power and is UL Listed.