Electric sauna heaters
Harvia and Narvi electric sauna heaters, from small wall-mounted units for a one-person sauna to commercial heaters for pools, gyms and hotels. Each product page shows the room size it suits, the power supply it needs and whether it needs a separate control unit.
FinnSauna is the only distributor of the Harvia Qube in New Zealand, with a special three-year warranty, even in commercial use. We're also the New Zealand agent for the Narvi Heat range, which we order in.
Not sure which heater suits your room? Tell us the size of the room and how you'll use it. We fit these heaters for a living, and we'll match the heater, control unit and stones for you.
How to choose: start with the room volume (length × width × height in cubic metres) and add about 1.2 m³ for every square metre of glass, tiles or bare masonry, which soak up heat. Pick a heater whose room-size range covers that figure, then check the power supply: most heaters over 9 kW need 400 V three-phase. Floor-standing heaters such as the Cilindro, Legend and Virta hold more stones for softer heat; wall-mounted units save space in small rooms. Every heater must be wired by a licensed electrician, and the installation manual on each product page lists the safety clearances, cable sizes and fuse ratings. Not sure? Send us your room size and we'll recommend a heater and control.
Electric sauna heaters questions.
What size sauna heater do I need?
Work out the room volume (length × width × height in cubic metres) and add about 1.2 m³ for every square metre of glass, tiles or bare masonry. Choose a heater whose room-size range covers that figure. An undersized heater is one of the most common problems we see.
Do I need three-phase power?
Most heaters over 9 kW need 400 V three-phase. Smaller heaters usually run on single-phase. Each product page lists the supply, cable size and fuse rating the heater needs.
Does my heater need a separate control unit?
Harvia models ending in E (for example the Cilindro PC70E or Legend PO110E) have no controls of their own and need a separate control unit. Heaters with built-in knobs don't.
How long does an electric sauna take to heat up?
A well-built sauna with the right heater is usually ready in 30 to 45 minutes.
How much does a sauna heater cost to run?
With power at around 40 cents per kWh, an 8 kW heater running flat out costs about $3.20 an hour. Once the room is hot it cycles on and off to hold the temperature, so a normal session costs less.
Can I install the heater myself?
The heater must be connected by a licensed electrician, following the clearances and cable sizes in its installation manual. We supply and fit heaters NZ-wide.
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.