Why this query matters
Sauna heater sizing should start with the real room volume, not only the model name. Outdoor cabins also need review of insulation, glass area, door opening, climate, ventilation, and expected heat-up time.
A serious buyer should ask the supplier to match heater power, stone capacity, control location, voltage, wiring route, and bench clearance to the exact sauna cabin configuration.
For hotels, resorts, distributors, and contractors, heater selection is part of the RFQ scope because it affects documentation, installation, spare parts, and user experience after delivery.