Specification
Wood-Fired vs Electric Sauna Heater: Which Should You Choose?
A guide to choosing between a wood-fired and electric sauna heater — covering the experience, convenience, running costs, and practical considerations for UK outdoor saunas.
By Wellness One Lifestyle · Published 2026-08-02 · Updated 2026-08-02
Wood-Fired vs Electric Sauna Heater
The choice between a wood-fired and electric heater is one of the most personal decisions in sauna ownership. Both options are available on all Wellness One models.
Electric Heaters (Huum or Harvia)
Electric heaters are the most popular choice for UK outdoor saunas. The advantages are significant:
Convenience: Set the timer and the sauna is ready when you want it. No fuel preparation, no fire-starting, no ash removal.
Control: Digital controls allow precise temperature setting. Many models can be controlled remotely via smartphone.
Heat-up time: 30–45 minutes to reach temperature.
Running cost: Approximately £1–3 per session depending on model size and electricity tariff.
Maintenance: Minimal. Replace heater stones periodically. Check the element annually.
Wood-Fired Heaters
Wood-fired heaters produce a different sauna experience that many enthusiasts strongly prefer:
The experience: Many sauna purists argue that wood-fired heat is softer, more enveloping, and produces a superior löyly (steam) experience. The ritual of fire-starting is itself part of the sauna tradition.
Heat quality: Wood-fired heaters typically have a larger stone capacity than electric heaters, producing a more voluminous and authentic steam.
Independence: No electricity required for the heater (though lighting and other features still require power).
Heat-up time: 45–90 minutes to reach temperature.
Running cost: Depends on wood fuel cost, but typically comparable to electric.
Maintenance: More involved — ash removal, flue cleaning, and periodic inspection of the firebox.
The Verdict
For most UK customers, electric is the practical choice. For sauna enthusiasts who prioritise the traditional experience, wood-fired is worth the additional effort. Both options deliver the same 110°C maximum temperature in a Wellness One sauna.
Frequently Asked Questions
Should I choose a wood-fired or electric sauna heater?
Electric heaters are the most convenient option for most UK installations — they heat up in 30–45 minutes and are controlled by a timer and thermostat. Wood-fired heaters produce a more traditional experience and are preferred by many sauna enthusiasts. Both options are available on all Wellness One models.
How long does a wood-fired sauna take to heat up?
A wood-fired sauna typically takes 45–90 minutes to reach temperature, depending on the model size and ambient temperature. An electric sauna takes 30–45 minutes.