10.5kW Sauna Heaters

What size sauna requires a 10.5kW heater?

A 10.5kW sauna heater is a high-output unit built for substantial spaces, typically ranging from 425 to 600 cubic feet. This is the power level you need for oversized residential saunas, large barrel saunas with significant glass, or commercial wellness facilities where performance is paramount.

What are the electrical specifications for a 10.5kW heater?

Heaters at this power level have significant electrical needs. They require a dedicated 240-volt circuit and a 50-amp or 60-amp breaker, depending on the model. Some may also require a 3-phase power supply, which is more common in commercial buildings. It is absolutely essential that a licensed electrician performs the installation and verifies your building's electrical compatibility.

Is this heater best for home or commercial use?

A 10.5kW heater excels in both large-scale home saunas and commercial settings. For a homeowner with a spacious, custom-built sauna for many guests, it's a fantastic choice. For commercial gyms, spas, and hotels, its power is ideal for frequent use. For dedicated public facilities, we recommend exploring our full range of large sauna heaters to find a model certified for that environment.

What kind of controls are used for a heater this powerful?

Due to their power and advanced features, 10.5kW heaters are typically operated with a separate, wall-mounted digital control panel. These sophisticated controllers, like the HUUM UKU or Harvia Xenio, allow for precise temperature adjustments, pre-setting heating times, and often include WiFi capabilities for remote operation from your smartphone.

For an even deeper dive, check out our complete guide to choosing the perfect sauna heater.