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For truly large and commercial-grade saunas, a 10.5kW sauna heater delivers the immense power required for consistent, enveloping heat. These are serious units designed for the most spacious wellness rooms, serving serious sauna enthusiasts and businesses alike. Need a different size? Explore our full collection of sauna heaters.
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.
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.
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.
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.