Updated September 30, 2026
What is Heater power?
In short
Heater power is the output of the heater or stove in a sauna or hot tub in kilowatts, and a higher figure heats faster and recovers quicker.
Heater power is the output of the heater or stove in a sauna or hot tub, measured in kilowatts. A higher figure reaches temperature faster and holds it when the door opens or the weather turns cold. The group spans compact units and full barrel saunas. Almost Heaven Saunas lists 8 to 9 kW for its flagship barrel sauna, JNH Lifestyles lists 1.54 kW for its infrared cabin and Lay-Z-Spa lists 2.05 kW for its hot tub.
Sources
- almostheaven.com, checked September 30, 2026
- jnhlifestyles.com, checked September 30, 2026
- lay-z-spa.co.uk, checked September 30, 2026