Huum Drop 4.5 kW Electric Sauna Heater
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Electric Sauna Heater • 4.5 kW • Up to 6 m³ • 55 kg Stone Capacity • Red Dot Award Winner • FREE Shipping
The Huum Drop 4.5 kW is a Red Dot Design Award-winning electric sauna heater built for small saunas up to approximately 6 m³. With an exceptional 55 kg stone capacity — more than most wood-burning heaters — and a 5-year warranty, it delivers consistent, enveloping heat and authentic long-lasting steam. Its signature drop-shaped silhouette, crafted from high-quality stainless steel in Estonia, makes it one of the most distinctive heaters on the market. Compatible with the Huum UKU Wi-Fi controller for convenient smartphone control of temperature and session timing.

Still on the fence? See how the Huum Drop compares in real-world use — its stone capacity, heat quality, and build set it apart from standard electric heaters at this price point.
| Specification | Detail |
|---|---|
| Model | Huum Drop |
| Power Output | 4.5 kW |
| Sauna Volume | Up to ~6 m³ |
| Stone Capacity | 55 kg |
| Heater Type | Electric |
| Construction | Stainless Steel |
| Control Compatibility | Huum UKU Wi-Fi Controller (sold separately) |
| Warranty | 5 Years |
| Award | Red Dot Design Award 2015 |
| Origin | Estonia |
| Brand | Huum |
| Resources | Owner's Manual | Size Guide | Electrical Approval |
The 4.5 kW Drop is designed for small saunas up to approximately 6 m³. For larger saunas, Huum offers the Drop in 6 kW, 7.5 kW, and 9 kW configurations. As a general rule, allow approximately 1 kW per 1 m³ of sauna volume, with additional allowance for glass walls, concrete, or tile surfaces.
Both models share the same 55 kg stone capacity, stainless steel construction, and Red Dot Award-winning design. The key difference is heating power and room coverage: the 4.5 kW is optimized for saunas up to ~6 m³, while the 6 kW handles up to ~8 m³. If your sauna is on the larger end of that range or has glass walls or concrete surfaces, the 6 kW is the better choice.
The Huum Drop stands out for its 55 kg stone capacity — significantly higher than most electric heaters in its class — which produces softer, more consistent steam closer to a traditional wood-burning sauna experience. Combined with its Red Dot Award-winning design, Estonian craftsmanship, and 5-year warranty, it offers strong long-term value for buyers who prioritize heat quality and aesthetics.
Yes — the Huum Drop is compatible with the Huum UKU Wi-Fi controller (sold separately), which allows you to control temperature, set timers, and manage your sauna session remotely via smartphone.
Yes — as with all electric sauna heaters, the Huum Drop requires professional electrical installation by a licensed electrician. Always follow local electrical codes and the manufacturer's installation guidelines.
Yes! Flexible financing options available at checkout.
The Huum Drop 4.5 kW — Red Dot Award-winning electric sauna heater with 55 kg stone capacity and a 5-year warranty. FREE Shipping included.
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