HUUM
HUUM CORE Wall Electric Sauna Heater White
HUUM CORE Wall Electric Sauna Heater White
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Description
Description
The HUUM Core Wall is a wall-mounted electric sauna heater from Estonian maker HUUM, designed to bring the deep, enveloping heat of a traditional Finnish sauna to rooms where floor space is at a premium. Fixing to the wall keeps the sauna floor completely clear, while a 20 kg stone capacity stores heat for the soft, long-lasting löyly HUUM heaters are known for. This listing is for the white finish, available in 4.5 kW and 6 kW outputs for sauna rooms of 3–7 m³ and 5–9 m³ respectively; a black version is listed separately. Both outputs connect to single-phase 240 V or three-phase 400 V supplies and must be run with a HUUM UKU control console (UKU Local or UKU Wi-Fi), which is sold separately, as are the sauna stones; we recommend two 15 kg boxes of rounded olivine diabase stones.
Features
Technical Specification
| All models | |
| Heater type | Wall-mounted electric sauna heater |
| Finish | White |
| Dimensions (H × W × D) | 586 × 400 × 335 mm |
| Empty weight | 15 kg |
| Stone capacity | 20 kg |
| Recommended stone size | 5–10 cm |
| Power supply | Single-phase 240 V or three-phase 400 V |
| Included in the set | Heater mounting plate, heat diverter with fastenings, heating element spacers and retainer, drip tray with frame, installation manual |
| Certification | Designed to EN 60335-2-53; UKCA certified |
| Safety distances (see the diagram in the product image gallery) | |
| A | 40 mm |
| B | 480 mm |
| C | 440 mm |
| D | 80 mm |
| E | 175 mm |
| Minimum ceiling clearance | 1,166 mm with the temperature sensor in its designated area; 1,400 mm otherwise |
| Core Wall 4.5 (4.5 kW) | |
| Heating output | 4.5 kW |
| Sauna room volume | 3–7 m³ |
| Heating elements | 3 × 1.5 kW |
| Supply cable (400 V 3N) | 5 × 1.5 mm² |
| Circuit breaker (400 V 3N) | 3 × 10 A |
| Core Wall 6 (6 kW) | |
| Heating output | 6 kW |
| Sauna room volume | 5–9 m³ |
| Heating elements | 3 × 2 kW |
| Supply cable (400 V 3N) | 5 × 1.5 mm² |
| Circuit breaker (400 V 3N) | 3 × 10 A |
Installation
Installation and maintenance must be carried out by a certified electrician, with the electricity supply isolated at the fuse panel before any work begins. Under IEC 60364-7-703 and BS 7671:2018 an electric sauna heater does not have to be connected through an RCD, and for reliable operation the manufacturer recommends that the heater supply is not run through one; other electrical devices in the sauna room should be RCD protected. A local point of isolation covering all live conductors is recommended. The installation manual in the Downloads tab and local wiring regulations must be followed. The heater connects to a single-phase 240 V or three-phase 400 V supply; for single-phase installations refer to the HUUM single-phase connection note in the Downloads tab. Use heat-resistant rubber-insulated cable (SIHF-JB or equivalent), never PVC-insulated cable, and crimp the cable ends. Ensure the wall structure can carry the full weight of the heater with stones, which HUUM states as up to 50 kg. When sizing the heater, add 1 m³ to the calculated room volume for each square metre of uninsulated brick, tile or glass wall. A HUUM UKU control console (UKU Local or UKU Wi-Fi, each controlling heaters up to 18 kW) is required to operate the heater and is sold separately. The heat diverter supplied with the heater must be fitted.
Sauna stones
The heater takes up to 20 kg of sauna stones with a diameter of 5–10 cm, sold separately; we recommend two 15 kg boxes of our rounded olivine diabase sauna stones. Wash the stones before first use and lay them one by one, leaving room for air to circulate and making sure no heating element remains visible through the stones.
Brand
HUUM is an Estonian manufacturer of design-led electric sauna heaters, pairing modern Nordic design with traditional sauna knowledge. Its DROP heater won the Red Dot Award for Product Design in 2015.
Warranty
Full details are set out in HUUM’s Limited Warranty Terms and Conditions; the heating elements are not covered by the warranty. The installation manual is available in the Downloads tab.
Downloads
Delivery & Returns
Delivery
We offer fast and reliable delivery to customers across the UK and beyond. For full details on shipping times and costs, please review our delivery policy.
Returns
We offer hassle-free returns within 30 days of purchase, so you can shop with complete confidence. For details, see our returns policy.
Warranty & Quality Promise
We are committed to delivering products of the highest quality, for details surrounding warranty please contact us.
Description
The HUUM Core Wall is a wall-mounted electric sauna heater from Estonian maker HUUM, designed to bring the deep, enveloping heat of a traditional Finnish sauna to rooms where floor space is at a premium. Fixing to the wall keeps the sauna floor completely clear, while a 20 kg stone capacity stores heat for the soft, long-lasting löyly HUUM heaters are known for. This listing is for the white finish, available in 4.5 kW and 6 kW outputs for sauna rooms of 3–7 m³ and 5–9 m³ respectively; a black version is listed separately. Both outputs connect to single-phase 240 V or three-phase 400 V supplies and must be run with a HUUM UKU control console (UKU Local or UKU Wi-Fi), which is sold separately, as are the sauna stones; we recommend two 15 kg boxes of rounded olivine diabase stones.
Features
| All models | |
| Heater type | Wall-mounted electric sauna heater |
| Finish | White |
| Dimensions (H × W × D) | 586 × 400 × 335 mm |
| Empty weight | 15 kg |
| Stone capacity | 20 kg |
| Recommended stone size | 5–10 cm |
| Power supply | Single-phase 240 V or three-phase 400 V |
| Included in the set | Heater mounting plate, heat diverter with fastenings, heating element spacers and retainer, drip tray with frame, installation manual |
| Certification | Designed to EN 60335-2-53; UKCA certified |
| Safety distances (see the diagram in the product image gallery) | |
| A | 40 mm |
| B | 480 mm |
| C | 440 mm |
| D | 80 mm |
| E | 175 mm |
| Minimum ceiling clearance | 1,166 mm with the temperature sensor in its designated area; 1,400 mm otherwise |
| Core Wall 4.5 (4.5 kW) | |
| Heating output | 4.5 kW |
| Sauna room volume | 3–7 m³ |
| Heating elements | 3 × 1.5 kW |
| Supply cable (400 V 3N) | 5 × 1.5 mm² |
| Circuit breaker (400 V 3N) | 3 × 10 A |
| Core Wall 6 (6 kW) | |
| Heating output | 6 kW |
| Sauna room volume | 5–9 m³ |
| Heating elements | 3 × 2 kW |
| Supply cable (400 V 3N) | 5 × 1.5 mm² |
| Circuit breaker (400 V 3N) | 3 × 10 A |
Installation
Installation and maintenance must be carried out by a certified electrician, with the electricity supply isolated at the fuse panel before any work begins. Under IEC 60364-7-703 and BS 7671:2018 an electric sauna heater does not have to be connected through an RCD, and for reliable operation the manufacturer recommends that the heater supply is not run through one; other electrical devices in the sauna room should be RCD protected. A local point of isolation covering all live conductors is recommended. The installation manual in the Downloads tab and local wiring regulations must be followed. The heater connects to a single-phase 240 V or three-phase 400 V supply; for single-phase installations refer to the HUUM single-phase connection note in the Downloads tab. Use heat-resistant rubber-insulated cable (SIHF-JB or equivalent), never PVC-insulated cable, and crimp the cable ends. Ensure the wall structure can carry the full weight of the heater with stones, which HUUM states as up to 50 kg. When sizing the heater, add 1 m³ to the calculated room volume for each square metre of uninsulated brick, tile or glass wall. A HUUM UKU control console (UKU Local or UKU Wi-Fi, each controlling heaters up to 18 kW) is required to operate the heater and is sold separately. The heat diverter supplied with the heater must be fitted.
Sauna stones
The heater takes up to 20 kg of sauna stones with a diameter of 5–10 cm, sold separately; we recommend two 15 kg boxes of our rounded olivine diabase sauna stones. Wash the stones before first use and lay them one by one, leaving room for air to circulate and making sure no heating element remains visible through the stones.
Brand
HUUM is an Estonian manufacturer of design-led electric sauna heaters, pairing modern Nordic design with traditional sauna knowledge. Its DROP heater won the Red Dot Award for Product Design in 2015.
Warranty
Full details are set out in HUUM’s Limited Warranty Terms and Conditions; the heating elements are not covered by the warranty. The installation manual is available in the Downloads tab.
Delivery
We offer fast and reliable delivery to customers across the UK and beyond. For full details on shipping times and costs, please review our delivery policy.
Returns
We offer hassle-free returns within 30 days of purchase, so you can shop with complete confidence. For details, see our returns policy.
Warranty & Quality Promise
We are committed to delivering products of the highest quality, for details surrounding warranty please contact us.
