Best heaters for a family sauna

Start with your sauna’s volume rather than price alone. The £199 KOVE 6kW covers 6–9m³. The wall-mounted Harvia Vega Compact is listed at 4.5kW for 5–13m³, from £206. These have the lowest starting prices in this selection.

For rooms of 8–14m³, the 9kW Harvia Vega starts at £271 and the 9kW Sawo at £300. The 9kW Helo Cup STJ covers 9–14m³, from £326.39; its product name specifies 3-phase only.

The 8kW options cover 8–12m³: the Helo Hanko STJ from £407.75 and the KOVE x Harvia Vega from £449. The 9kW HUUM DROP has a listed range of 8–15m³ and starts at £429.99.

If you want mechanical controls, the KOVE 6kW lists mechanical dials, while the KOVE x Harvia Vega lists built-in mechanical controls. The 9kW Harvia Vega has manual controls. The Helo Cup STJ lists integrated controls with a timer.

The 6.8kW Harvia Glow covers 6–14m³, from £407. Its controls field lists None, Built-in and Harvia Xenio CX110, so check which configuration you are comparing.

The floor-standing Tylo Crown Elite is 8kW, covers 6–18m³ and lists Tylo Elite Cloud controls. Prices for this model and the Harvia Vega Compact were checked at multiple shops; the other 8 heaters had a single shop checked.