The CORE Wall electric sauna heater is the latest addition to the award-winning CORE series. The original floor-mounted CORE heater has already gained international recognition for its design and performance. Now, the new CORE Wall range extends these same values into a new format.
Its minimalist form and fine craftsmanship make it a striking centerpiece while saving valuable floor space.
Holding up to 20 kg of stones, this wall-mounted heater delivers rich steam and a naturally smooth sauna experience.
With the introduction of wall-mounted and Combi options, HUUM opens up new opportunities for diverse sauna layouts – from maximizing space in compact rooms to creating a distinctive design statement.
The new wall-mounted series includes four models:
- CORE Wall & CORE Wall Mini – compact yet powerful heaters for various room sizes.
- CORE Wall Combi & CORE Wall Mini Combi – equipped with a built-in steamer for a softer, more humid sauna experience.
With power options ranging from 3 kW to 9 kW, the CORE Wall series suits saunas ranging from 2 to 13 m³, making it a versatile choice for both compact and mid-sized setups.
| Model | CORE Wall 4 | CORE Wall 6 | CORE Wall 7 | CORE Wall 9 |
|---|---|---|---|---|
| Heater | ||||
| Power rating (kW) | 4,5 | 6 | 7,5 | 9 |
| Steam room min (m3) | 3 | 5 | 7 | 8 |
| Steam room max (m3) | 7 | 9 | 11 | 13 |
| Holding capacity of sauna rocks (kg) | 20 | 20 | 20 | 20 |
| Weight (kg) | 15 | 15 | 15 | 15 |
| Height (mm) | 586 | 586 | 586 | 586 |
| Width (mm) | 400 | 400 | 400 | 400 |
| Depth (mm) | 335 | 335 | 335 | 335 |
| Color range | Black, White | Black, White | Black | Black |
| Connection | ||||
| Fuse | 10 A | 10 A | 16 A | 16 A |
| Supply voltage, 3-phase | 3/N~400 V | 3/N~400 V | 3/N~400 V | 3/N~400 V |
| Power cable (N x mm2) | 5 x 1.5 | 5 x 1.5 | 5 x 2.5 | 5 x 2.5 |
| Safety distances | ||||
| A (mm) | 40 | 40 | 40 | 40 |
| B (mm) | 480 | 480 | 480 | 480 |
| C (mm) | 375 | 375 | 375 | 375 |
| D (mm) | 80 | 80 | 80 | 80 |
| E (mm) | 164 | 164 | 164 | 164 |

- electric sauna heater
- heater mounting plate
- heat diverter
- heating element spacer
- heating element retainer
- drip tray with frame
- UKU sauna control system
- sauna stones with the diameter of 5–10 cm
- heat-resistant power cable
The CORE Wall electric sauna heater is the latest addition to the award-winning CORE series. The original floor-mounted CORE heater has already gained international recognition for its design and performance. Now, the new CORE Wall range extends these same values into a new format.
Its minimalist form and fine craftsmanship make it a striking centerpiece while saving valuable floor space.
Holding up to 20 kg of stones, this wall-mounted heater delivers rich steam and a naturally smooth sauna experience.
With the introduction of wall-mounted and Combi options, HUUM opens up new opportunities for diverse sauna layouts – from maximizing space in compact rooms to creating a distinctive design statement.
The new wall-mounted series includes four models:
- CORE Wall & CORE Wall Mini – compact yet powerful heaters for various room sizes.
- CORE Wall Combi & CORE Wall Mini Combi – equipped with a built-in steamer for a softer, more humid sauna experience.
With power options ranging from 3 kW to 9 kW, the CORE Wall series suits saunas ranging from 2 to 13 m³, making it a versatile choice for both compact and mid-sized setups.
| Model | CORE Wall 4 | CORE Wall 6 | CORE Wall 7 | CORE Wall 9 |
|---|---|---|---|---|
| Heater | ||||
| Power rating (kW) | 4,5 | 6 | 7,5 | 9 |
| Steam room min (m3) | 3 | 5 | 7 | 8 |
| Steam room max (m3) | 7 | 9 | 11 | 13 |
| Holding capacity of sauna rocks (kg) | 20 | 20 | 20 | 20 |
| Weight (kg) | 15 | 15 | 15 | 15 |
| Height (mm) | 586 | 586 | 586 | 586 |
| Width (mm) | 400 | 400 | 400 | 400 |
| Depth (mm) | 335 | 335 | 335 | 335 |
| Color range | Black, White | Black, White | Black | Black |
| Connection | ||||
| Fuse | 10 A | 10 A | 16 A | 16 A |
| Supply voltage, 3-phase | 3/N~400 V | 3/N~400 V | 3/N~400 V | 3/N~400 V |
| Power cable (N x mm2) | 5 x 1.5 | 5 x 1.5 | 5 x 2.5 | 5 x 2.5 |
| Safety distances | ||||
| A (mm) | 40 | 40 | 40 | 40 |
| B (mm) | 480 | 480 | 480 | 480 |
| C (mm) | 375 | 375 | 375 | 375 |
| D (mm) | 80 | 80 | 80 | 80 |
| E (mm) | 164 | 164 | 164 | 164 |

- electric sauna heater
- heater mounting plate
- heat diverter
- heating element spacer
- heating element retainer
- drip tray with frame
- UKU sauna control system
- sauna stones with the diameter of 5–10 cm
- heat-resistant power cable
Accessories
HUUM app enables one to heat the sauna from a smartphone
HUUM mobile app allows you to heat the sauna from your phone, wherever you are. It doesn’t matter whether you are heading home from the office, finishing your evening jog or simply wish to have an unplanned rewarding sauna evening with your friends – just a few clicks on the smartphone, and a hot sauna awaits you!










