Heater database · Saunum
Saunum Air L 15
Saunum Air L 15 is a 15 kW electric heater rated for sauna rooms of 530–812 ft³ (15–23 m³). Air-mixing heater for even temperature.
15 kW62.5 A at 240 V · 21.7 A per phase at 400 V
530–812 ft³rated room · 15–23 m³
–stone load: see the manual
80 Atypical 240 V breaker (125% rule); check the manual
Affiliate link. Heaters are listed by fit, not by commission.
Rooms it fits
Indoor rooms with insulated walls, a 7 ft ceiling and a glass door, which counts extra. Warm-up is from 68 °F to 176 °F, estimated with the calculator's model. For your own room, glass, masonry or log walls, use the calculator.
| Room | Counts as | Fit | Warm-up |
|---|---|---|---|
| 4 × 5 ft | 199 ft³ | Too big for this room | – |
| 5 × 5 ft | 234 ft³ | Too big for this room | – |
| 5 × 6 ft | 269 ft³ | Too big for this room | – |
| 6 × 6 ft | 311 ft³ | Too big for this room | – |
| 6 × 7 ft | 353 ft³ | Too big for this room | – |
| 7 × 8 ft | 451 ft³ | Too big for this room | – |
| 8 × 8 ft | 507 ft³ | Too big for this room | – |
| 8 × 10 ft | 619 ft³ | ✓ Rated for this room | 38 min |
Similar heaters from other brands
- HUUM Hive 1515 kW · 530–813 ft³
- HUUM Hive 1212 kW · 424–636 ft³
- HUUM Hive 1818 kW · 636–989 ft³
- HUUM Hive Mini 10.610.6 kW · 353–706 ft³
Source
Rated room range from Saunum's product information, checked October 2026. Ranges are the manufacturer's calculated room volumes; check the manual for safety distances, and have a licensed electrician make the connection.