Required for operation (sold separately): HUUM UKU control; 66 lbs of sauna stones (2 × 33 lb boxes, 5–10 cm (2″–4″) stones).
The HUUM CORE is built around choice. The unfinished version has a naked exterior so you can create your own panels of tile, stone, glass, or wood to match your sauna. You can also choose a contemporary black metal exterior, or premium Alder, Aspen, or Thermo-Aspen wood panels for a natural look.
CORE comes in 6.5, 9, and 10.5 kW versions on 240V single-phase power. It stands on adjustable legs, can be fully embedded into a sauna bench, and holds 66 lbs of stones in direct contact with its stainless-steel heating elements. It works with the HUUM UKU control and is designed, engineered, and made in Estonia.
Features
- Customizable exterior: unfinished, black steel, or Alder, Aspen, or Thermo-Aspen wood panels
- Can be completely embedded into a sauna bench
- 6.5, 9, or 10.5 kW on 240V single-phase
- 66 lb stone capacity (2 × 33 lb boxes, sold separately)
- Direct contact between stones and industrial-quality stainless-steel elements
- Works with HUUM UKU controls (sold separately)
- Designed, engineered, and made in Estonia
Models & Specifications
| Model |
Power |
Electrical |
Amps |
Room size |
Stone capacity |
Dimensions |
| HUUM CORE ST 6 |
6.5 kW |
240V 1-phase |
25 A |
177–318 cu. ft. |
66 lbs |
12.2″W (31 cm) x 12.2″D (31 cm) x 32.7″H (83 cm) |
| HUUM CORE ST 9 |
9 kW |
240V 1-phase |
37.5 A |
283–460 cu. ft. |
66 lbs |
12.2″W (31 cm) x 12.2″D (31 cm) x 32.7″H (83 cm) |
| HUUM CORE ST 11 |
10.5 kW |
240V 1-phase |
43.75 A |
354–566 cu. ft. |
66 lbs |
12.2″W (31 cm) x 12.2″D (31 cm) x 32.7″H (83 cm) |
| HUUM CORE BLACK 6 |
6.5 kW |
240V 1-phase |
25 A |
177–318 cu. ft. |
66 lbs |
15.2″W (38.5 cm) x 15.2″D (38.5 cm) x 32.7″H (83 cm) |
| HUUM CORE BLACK 9 |
9 kW |
240V 1-phase |
37.5 A |
283–460 cu. ft. |
66 lbs |
15.2″W (38.5 cm) x 15.2″D (38.5 cm) x 32.7″H (83 cm) |
| HUUM CORE BLACK 11 |
10.5 kW |
240V 1-phase |
43.75 A |
354–566 cu. ft. |
66 lbs |
15.2″W (38.5 cm) x 15.2″D (38.5 cm) x 32.7″H (83 cm) |
| HUUM CORE ST ALDER 6 |
6.5 kW |
240V 1-phase |
25 A |
177–318 cu. ft. |
66 lbs |
12.2″W (31 cm) x 12.2″D (31 cm) x 32.7″H (83 cm) |
| HUUM CORE ST ALDER 9 |
9 kW |
240V 1-phase |
37.5 A |
283–460 cu. ft. |
66 lbs |
12.2″W (31 cm) x 12.2″D (31 cm) x 32.7″H (83 cm) |
| HUUM CORE ST ALDER 11 |
10.5 kW |
240V 1-phase |
43.75 A |
354–566 cu. ft. |
66 lbs |
12.2″W (31 cm) x 12.2″D (31 cm) x 32.7″H (83 cm) |
| HUUM CORE ST ASPEN 6 |
6.5 kW |
240V 1-phase |
25 A |
177–318 cu. ft. |
66 lbs |
12.2″W (31 cm) x 12.2″D (31 cm) x 32.7″H (83 cm) |
| HUUM CORE ST ASPEN 9 |
9 kW |
240V 1-phase |
37.5 A |
283–460 cu. ft. |
66 lbs |
12.2″W (31 cm) x 12.2″D (31 cm) x 32.7″H (83 cm) |
| HUUM CORE ST ASPEN 11 |
10.5 kW |
240V 1-phase |
43.75 A |
354–566 cu. ft. |
66 lbs |
12.2″W (31 cm) x 12.2″D (31 cm) x 32.7″H (83 cm) |
| HUUM CORE ST THERMO-ASPEN 6 |
6.5 kW |
240V 1-phase |
25 A |
177–318 cu. ft. |
66 lbs |
12.2″W (31 cm) x 12.2″D (31 cm) x 32.7″H (83 cm) |
| HUUM CORE ST THERMO-ASPEN 9 |
9 kW |
240V 1-phase |
37.5 A |
283–460 cu. ft. |
66 lbs |
12.2″W (31 cm) x 12.2″D (31 cm) x 32.7″H (83 cm) |
| HUUM CORE ST THERMO-ASPEN 11 |
10.5 kW |
240V 1-phase |
43.75 A |
354–566 cu. ft. |
66 lbs |
12.2″W (31 cm) x 12.2″D (31 cm) x 32.7″H (83 cm) |
Required for Operation (Sold Separately)
HUUM UKU control; 66 lbs of sauna stones (2 × 33 lb boxes, 5–10 cm (2″–4″) stones).
What’s Included
- Sauna Heater
- Adjustable Legs (4)
- Unfinished Metal Shields (4)
- Cover Strips (4)
- Cover Strip Fastening Screws
- Installation and Operation Manual
- 3-Year Limited Residential Warranty and 1-Year Limited Commercial Warranty (Excluding Elements)
Warranty
3-year limited residential warranty and 1-year limited commercial warranty (excludes heating elements).
Documents
Questions about sizing, electrical requirements, or installation? Talk with a Royal Spa product specialist.
