Kaamos Steel Compact
4.5 / 6.0 / 9.0 kW · wall mounted · home saunas
Data sheet →← Aura
Guide
What size sauna heater do I need?
A heater that is too small never gets the room hot enough; one that is too big heats too fast and dries the air. Here is how to size an electric sauna heater in four steps.
1. Measure the room volume
Multiply length × width × height of the hot room in metres. A 2 × 2 m sauna with a 2.1 m ceiling is 8.4 m³.
2. Add extra for cold surfaces
Glass, tile, stone and concrete absorb heat. As a common rule, add about 1.2 m³ to your volume for every square metre of uninsulated glass or masonry wall. A glass-front cabin often needs one size up.
3. Match the volume to the heater
Each heater has a recommended room volume on its data sheet. Pick a heater whose range covers your adjusted volume, ideally not at the very top of the range.
4. Check your power supply
Smaller heaters can run on single-phase 230 V; larger ones need three-phase 400 V. Ask your electrician before you order.
Aura heaters by size
Kaamos Nordik Black
4.5 – 18 kW · rooms 6 – 27 m³
Data sheet →Aura Tower
9 kW · rooms 9 – 13 m³
Data sheet →For larger rooms, the freestanding Kaamos Steel Wide comes in 12, 15 and 18 kW for rooms up to 27 m³. Every Aura heater includes the Aura touch control unit.
Not sure which size fits your room?
Send us your room size