01 — Heaters compared
Heaters compared
| Heater | kW | Room (m³) | Controls | Price from |
|---|---|---|---|---|
| IKI OriginalIKI | — | 14–30 | — | £208 |
| Original IKI Wood Burning Sauna HeaterIKI | — | 14–30 | — | £1868 |
| Aitokiuas Heat Storing Wood Burning Sauna/Banya Heater | — | — | — | £2190 |
| Northern Spirit Barrel Sauna | — | — | — | £4290 |
| Water heater Harvia pipe model. Stainless SteelHarvia | 4.5kW | — | — | £257 |
| Narvi NC 16/20/24 Wood Burning Sauna HeaterNarvi | 7.5kW | 10–24 | — | £860 |
| IKI Original PlusIKI | 9kW | 20–30 | Manual | £3100 |
| Harvia Wood Burning Sauna StoveHarvia | 12kW | 10–25 | Manual | £999 |
| IKI Original | 13kW | 14–30 | — | £208 |
| Harvia Legend 150 SL black (through the wall)Harvia | 16kW | 6–13 | — | £1185 |
| Harvia M3Harvia | 16.5kW | — | — | £109 |
| Huum Hive Wood 17 kW LS (through the wall)Huum | 17kW | — | — | £1269 |
| Narvi Kuru Wood Burning Sauna HeaterNarvi | 20kW | 8–14 | — | £629 |
| Narvi NC 16/20/24 Wood Burning Sauna HeaterNarvi | 20kW | — | — | £860 |
| IKI LÖYLYIKI | 20kW | 20–40 | — | £1837 |
| Harvia Pro 20 SL Wood Burning Stove - BlackHarvia | 24.1kW | 8–20 | Controls on heater | £1330 |
02 — Key facts
Key facts
- Heaters checked
- 16
- Power range
- 4.5–24.1kW
- Cheapest
- £109
03 — Compare the listed room sizes
Compare the listed room sizes
Start with your sauna’s volume and compare it with each stove’s listed range. The Harvia Legend 150 SL black (through the wall) lists 6–13m³. The Narvi NC 16/20/24 lists 8–24m³, while the Harvia Pro 20 SL lists 8–20m³. The Harvia Wood Burning Sauna Stove lists 10–25m³, and the Original IKI lists 14–30m³.
These ranges give you a more specific comparison than price alone. For example, the Original IKI has the highest listed room-volume ceiling in this selection, but no power rating is supplied. Neither the Aitokiuas nor the Huum Hive Wood 17 kW LS entry provides a usable room-volume range, so you cannot make the same size comparison for those two from this data.
04 — Check starting prices and recorded details
Check starting prices and recorded details
The Narvi NC 16/20/24 has the lowest starting price at £860, followed by the Harvia Wood Burning Sauna Stove at £999. The Harvia Legend 150 SL starts at £1,184.88, the Huum Hive Wood 17 kW LS at £1,269 and the Harvia Pro 20 SL at £1,330. The Original IKI starts at £1,868 and the Aitokiuas at £2,190.
Control details are limited. The Harvia Wood Burning Sauna Stove lists manual controls, while the Harvia Pro 20 SL lists controls on the heater. The other entries do not specify controls.
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