Sauna controls
Control units and power extension units for heaters that don't have controls of their own (Harvia models ending in E). Each control is rated for a maximum heater load, shown on its product page.
Tell us which heater you have or are buying, and we'll make sure the control unit suits it.
Most larger heaters run from a separate control unit rather than knobs on the heater. A control sets the temperature and on-time, and many models add timers, lighting control and Wi-Fi so you can start the sauna from your phone. Check two things before you buy: that the control suits your heater's maximum load (shown on each product page), and whether you need an extra power unit for bigger heaters or for combining a heater with infrared panels. Controls are mounted outside the sauna, and the temperature sensor goes on the sauna wall above the heater. A licensed electrician must wire the heater, control and sensor together.
Sauna controls questions.
Which heaters need a separate control unit?
Harvia heaters with model names ending in E. They have no controls of their own.
How do I choose a control unit?
Check that the control is rated for your heater's maximum load (shown on each product page), and whether you need a power extension unit for a bigger heater or for adding infrared panels.
Where is the control mounted?
Outside the sauna. The temperature sensor goes on the sauna wall above the heater.
Can I start my sauna from my phone?
Yes, with a Wi-Fi control such as the Harvia Xenio Wi-Fi or Fenix models.
Who wires the control unit?
A licensed electrician must wire the heater, control and sensor together.
Let's talk about your next sauna.
A new build, a heater, a steam room or a service — tell us what you have in mind and you'll get a straight answer from a builder, not a call centre.