01 — Heaters compared
Heaters compared
| Heater | kW | Room (m³) | Controls | Price from |
|---|---|---|---|---|
| Narvi Minex Domestic Electric Sauna HeaterNarvi | 3kW | — | — | £457 |
| Narvi NM Domestic Electric Sauna HeaterNarvi | 4.5kW | — | Manual | £450 |
| Narvi NC Domestic Electric Sauna HeaterNarvi | 6kW | — | Built-in | £588 |
| Narvi NC Domestic Electric Sauna HeaterNarvi | 6kW | 8–14 | Manual | £588 |
| Narvi NC Domestic Electric Sauna Heater (Wi-Fi)Narvi | 6kW | 5–9 | Manual | £900 |
| Narvi NC 16/20/24 Wood Burning Sauna HeaterNarvi | 7.5kW | 10–24 | — | £860 |
| Narvi Peak Commercial Electric Sauna HeaterNarvi | 10.5kW | — | Separate panel | £1907 |
| Narvi Kuru Wood Burning Sauna HeaterNarvi | 20kW | 8–14 | — | £629 |
| Narvi NC 16/20/24 Wood Burning Sauna HeaterNarvi | 20kW | — | — | £860 |
02 — Key facts
Key facts
- Heaters checked
- 9
- Power range
- 3–20kW
- Cheapest
- £450
03 — Compare output, room size and price
Compare output, room size and price
Use the listed room-volume ranges where available, rather than choosing by price alone. The 6kW NC Wi-Fi model lists 5–9m³ and starts at £899.99. The 8kW NC electric model lists 8–14m³ and starts at £587.99. The NC 16/20/24 wood-burning heater is listed at 7.5kW, with an 8–24m³ range and a starting price of £860.
At the lower end of the output range, the 3kW Minex starts at £456.99. The 4.5kW NM costs slightly less, starting at £449.99. Neither has a usable room-volume range in this comparison, so you cannot establish room suitability from these entries alone.
04 — Check controls and electrical phase
Check controls and electrical phase
The electric Minex, NM and NC entries are listed as single-phase. The 10.5kW Peak Commercial Electric Sauna Heater is listed as three-phase, with no controls specified here.
The standard 6kW NC lists an integrated PSU, control unit and thermostat. The 8kW NC lists manual controls. Although the other 6kW NC entry includes Wi-Fi in its name, its controls field says manual. Confirm the control arrangement before choosing that model; this record does not resolve the difference.
05 — Frequently asked questions
Frequently asked questions
Not sure what size you need?
Work out the right kW for your room from its size, insulation and glass.
Heater size calculator