Narvi Ultra Big

Narvi Ultra Big -sauna heaters are efficient in heating up bigger saunas, which are heated daily. Due to the large stone compartment, the Ultra Big-sauna heater gives excellent steam for the sauna goers. The sauna heater parts are made of quality steel to stand heavy usage and corrosion. The effect of Narvi Ultra Bifg is 18-30kW.

The functions of the sauna heater are controlled by a separate control panel and power unit (bought separately). The heater  requires an external temperature sensor (included in the separately bought contorl unit), which makes sure that the desired temperature remains accurate in the sauna.

The diameter of a heating element of electrical heaters made by NARVI Oy is exceptionally big (8.5 mm). This extends the usage life of a heating element and significantly reduces the risk of overheating.


Technical info

Ultra Big 18 kWUltra Big 21 kWUltra Big 24 kWUltra Big 27 kWUltra Big 30 kW
Sauna room size18–30 m³24–36 m³27–40 m³30–46 m³40–56 m³
Effect18 kW21 kW24 kW27 kW30 kW
Height68 cm68 cm68 cm68 cm68 cm
Width86 cm86 cm86 cm86 cm86 cm
Depth49 cm49 cm49 cm49 cm49 cm
Product weight50 kg50 kg50 kg50 kg50 kg
Stone capacity120 kg120 kg120 kg120 kg120 kg
Casingstainless steel or painted blackstainless steel or painted blackstainless steel or painted blackstainless steel or painted blackstainless steel or painted black
Safety distances
Sides16 cm16 cm16 cm20 cm20 cm
Front20 cm20 cm20 cm20 cm20 cm
Up140 cm140 cm140 cm150 cm150 cm



Narvi Ultra Big FI, GB, DE, SE, RU

Control unit for Narvi Ultra Big FI, GB, DE, SE, RU, UK, EE, LV, LT, HU, RO, PL, BG, CS, SK


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