Aito AK sauna heater accumulates heat: while the heater is heated, it does not transfer much heat to the sauna room, because the heat is stored in the heater itself. Only when you start bathing in the sauna and open the steam lid does a stream of warm air flow into the sauna.
Naturally, the best feature of the Aito AK heater is the steam. The heat is clean and mild, as always recommended by sauna experts. The steam is absolutely clean, free of dust and soot, and is particularly light because when the furnace is heated, the fire passes through the stones, which heat up to redness and sometimes even whiteness.
The Aito AK heater, although large, is remarkably economical. The insulated housing and the special design of the firebox ensure that the thermal energy is used to the maximum.
The heater is sold together with traditional stones.
Country of Manufacture
Delivery time (days)
Recommended sauna size (m3)
Dimensions height (mm)
Stone capacity max. (kg)
Location of smoke outlets at rear: from floor to centre of hole
Diameter of smoke outlet (mm)
Safety distance to front (mm)
Safety distance to sides and back / wood and bricks (mm)
Safety distance from upper surface to ceiling min. (mm)