HUUM HIVE 18kW Electric Sauna Heater Package
A complete 18 kW HUUM HIVE electric sauna heater package with a massive 528 lb stone capacity, UKU control system, extension box and Air Tunnel, designed for large residential and commercial saunas.
High-capacity HUUM heating for large sauna rooms
The HUUM HIVE 18kW is a free-standing electric sauna heater designed for large sauna rooms. On a 240V supply, the 18 kW model is rated for rooms from 636 to 989 cu. ft. and combines its high output with an exceptionally large 528 lb stone capacity.
This package includes the HIVE heater, UKU control system, UKU extension box, 528 lb of rounded olivine sauna stones and HUUM Air Tunnel. The Air Tunnel improves circulation through the stone mass, helping shorten heat-up time while reducing direct thermal stress on the heating elements.
HUUM HIVE sizing, power and clearances
| Specification | HIVE 12 | HIVE 15 | HIVE 18 |
|---|---|---|---|
| Output at 240V | 12 kW | 15 kW | 18 kW |
| Sauna room at 240V | 424–636 cu. ft. | 530–813 cu. ft. | 636–989 cu. ft. |
| Stone capacity | 528 lb | 528 lb | 528 lb |
| Dimensions | 22.05 × 29.53 in. | 22.05 × 29.53 in. | 22.05 × 29.53 in. |
| Heater weight | 48.5 lb | 50.7 lb | 53 lb |
| 240V current draw | 50 A | 62.5 A | 75 A |
| 240V circuit breakers | 30 + 30 A | 50 + 50 A | 50 + 50 A |
| 240V minimum wire size | 10 + 10 AWG | 6 + 6 AWG | 6 + 6 AWG |
| Safety distance A | 4.73 in. | 5.91 in. | 7.1 in. |
| Safety distance B | 31.5 in. | 33.86 in. | 36.22 in. |
On a 208V supply, HIVE 12 / 15 / 18 output is reduced to 9 / 11.25 / 13.5 kW respectively. The HIVE 18 is rated for approximately 477–742 cu. ft. at 208V.
HIVE 12, 15 and 18 are two-circuit heaters requiring two dedicated breakers and two supply cables. Installation must be completed by a licensed electrician. Confirm electrical requirements, clearances and sauna-room sizing against the current HUUM installation manual and applicable local electrical code before installation.
