HUUM STEEL Series Electric Sauna Heater
A slim HUUM STEEL electric heater with minimal wall clearances — fits tight sauna spaces where most heaters simply won't go.
- Heats up 25% faster via an internal air duct design.
- Slim 12.6" footprint fits tight corners with small wall clearances.
- HUUM's WiFi app lets you start your sauna before you walk in the door.
See What People Are Saying…
“This has completely transformed my workspace. The natural light is a game changer!”
“Built it in a weekend with my brother. Glass front is the move — feels like a real room, not a closet.”
“I love the design and how easy it was to set up. Highly recommend for any home owner.”
- Description
- Specifications
- Documents
- Warranty
The STEEL sauna heater is a slim electric sauna heater with remarkably small safety distances, which makes it perfect for saunas with limited spaces. The STEEL sauna heater is designed for sauna spaces up to 600 cubic feet (CF).
Required Control and sauna stones (10 boxes) sold separately.
| Heater Size | 6 kW | 9 kW | 10.5 kW |
| Sauna Room |
177 - 318 cu. ft. (5-9 m³) |
283 - 460 cu. ft. (8-13 m³) |
354 - 566 cu. ft. (10-16 m³) |
| Stone Capacity | 330 lb. (150 kg) | 330 lb. (150 kg) | 330 lb. (150 kg) |
| Height |
38.4" (975mm) |
38.4" (975mm) | 38.4" (975mm) |
| Width/Depth | 12.59" (320 mm) | 12.59" (320 mm) | 12.59" (320 mm) |
| Weight | 33 lb (15 kg) | 33 lb (15 kg) | 33 lb (15 kg) |
Safety Distance
| Heater Size | 6 kW | 9 kW | 10.5 kW |
| A | 1.96" (50 mm) | 3.93" (100 mm) | 3.93" (100 mm) |
| B | 16.53" (420 mm) | 20.47" (520 mm) | 20.47" (520 mm) |
Power
Each STEEL runs on a single dedicated circuit. Figures below are taken from the current HUUM installation & operation manual. Installation must be carried out by a licensed electrician, and local code applies wherever it is stricter.
| 240V Supply | STEEL 6 | STEEL 9 | STEEL 10.5 |
| Output | 6 kW | 9 kW | 10.5 kW |
| Current Draw | 25 A | 37.5 A | 43.75 A |
| Circuit Breaker | 30 A | 50 A | 50 A |
| Min. Wire Size | 10 AWG | 8 AWG | 8 AWG |
The same heaters run on a 208V supply at reduced output, which also reduces the room they can heat:
| 208V Supply | STEEL 6 | STEEL 9 | STEEL 10.5 |
| Output | 4.8 kW | 7.1 kW | 8.5 kW |
| Current Draw | 21.63 A | 32.45 A | 37.98 A |
| Circuit Breaker | 30 A | 40 A | 50 A |
| Min. Wire Size | 10 AWG | 8 AWG | 8 AWG |
| Sauna Room | 142-248 cu. ft. (4-7 m³) |
212-354 cu. ft. (6-10 m³) |
265-424 cu. ft. (7.5-12 m³) |
