Small Sauna Heaters

Scroll all the way down to explore our expert guide with insights. Find the right fit for your preferences.

Compact Yet Powerful Sauna Heaters

This collection features high-performance sauna heaters under 4.5kW, perfect for small home saunas. With trusted brands like Harvia and HUUM, these heaters are designed for sauna rooms up to 245 cubic feet.

Mini Sauna Heaters: Small Size, Big Performance

We classify 1.7kW to 3.5kW models as mini sauna heaters, ideal for 1-2 person home saunas. Most are wired for 240V, ensuring better efficiency and safer operation. While some 110V and 120V models exist, we do not recommend them due to:

  • Lower efficiency – 240V provides better performance and faster heating.
  • Potential safety concerns – Running high-power heaters on lower voltage may overload circuits.

Harvia KIP: A Global Favorite

Harvia’s KIP series is among the most popular sauna heaters worldwide. This collection includes:

  • KIP30B – Built-in controls for easy operation, a cost-effective choice.
  • KIP30W – Requires an external control panel and supports WiFi control via a smartphone app (WiFi add-on required).

For larger sauna spaces, 4.5kW KIP models are also available.

HUUM Mini 3.5kW: Sleek & Wall-Mounted

The HUUM Mini 3.5kW is a compact, wall-mounted heater, significantly smaller than others in the HUUM lineup. Its space-saving design makes it ideal for modern home saunas.

Another option is the HUUM Steel Mini 3.5kW, also wall-mounted and designed for sauna rooms between 124–212 cubic feet.

Choosing the Right Sauna Heater Size

Not sure what size heater you need? Use our sauna heater calculator or contact us for expert advice.

General rule: When in doubt, go bigger. A more powerful heater:

  • Reaches higher temperatures if desired
  • Lasts longer by not running at maximum output constantly

For example, if your sauna is 130 cubic feet, a 4.5kW heater is a smarter choice than a 3kW heater, even though both can technically do the job.