IKI 3.3 kW is suitable for small, 3-5 cubic metre sized saunas. The heater fits well into small spaces, because it does not require large safety distances and it is very compact in size (only 24 cm in diameter). However, the stone capacity is still a hefty 60 kilos, which is plenty enough to guarantee that unforgetable IKI sauna experience. Even a heavyweight bather will get his money's worth of heat from this little firecracker of a heater. The large amount of stones also guarantees a comfortable oxygen rich bathing experience.A small sauna heats up ready for use in about 45-60 minutes. The heater can be connected to the electrical network with a 1- or 3-phase connection.