Tulikivi
USVA Electric Sauna Heater by Tulikivi
USVA Electric Sauna Heater by Tulikivi
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Description
Description
The Usva is a freestanding electric sauna heater from Tulikivi’s Kevo collection: a minimalist round column in black or white metal with height adjustment from 790 mm to 940 mm, so it can stand alone or be integrated into the benches. Six outputs cover saunas of 3–24 m³: the 4.5 kW, 6.8 kW and 8.5 kW models suit single- or three-phase supplies, while the 10.2 kW, 12.8 kW and 15.3 kW models are for three-phase supplies only. Low safety clearances make it easy to place in a modern home or public sauna, the heater can be set to evaporate steam at different speeds, and a stone load of approximately 30 kg (50 kg on the 12.8 kW and 15.3 kW L models) gives a pleasant, soft steam. Sauna stones, contactor and controller are purchased separately; the Usva is compatible with the Tulikivi Complete Wi-Fi Control System and with the HUUM UKU Local and Wi-Fi controllers.
Features
Technical Specification
| All models | |
| Outer casing | Metal, black or white |
| Height (adjustable) | 790–940 mm |
| Diameter | Ø 360 mm |
| Weight without stones | 26 kg |
| Recommended stone size | 5–10 cm |
| Control method | Separate Tulikivi control unit, sold separately |
| Minimum sauna room height | 1,900 mm |
| Clearance to the sides | 50 mm |
| Clearance to the front | 20 mm |
| Minimum distance to ceiling | 1,050 mm |
| Clearance to the floor | 50 mm |
| Connection cable type | H07RN-F rubber cable, 400 V 3N |
| Usva (4.5 kW) | |
| Recommended sauna room volume | 3–6 m³ |
| Recommended amount of stones | Approx. 30 kg |
| Fuses | 3 × 10 A |
| Connection cable | 5 × 1.5 mm² |
| Included | D-body with heating elements and temperature sensor, no PC board |
| Usva (6.8 kW) | |
| Recommended sauna room volume | 5–9 m³ |
| Recommended amount of stones | Approx. 30 kg |
| Fuses | 3 × 10 A |
| Connection cable | 5 × 1.5 mm² |
| Included | D-body with heating elements and temperature sensor, no PC board |
| Usva (8.5 kW) | |
| Recommended sauna room volume | 7–13 m³ |
| Recommended amount of stones | Approx. 30 kg |
| Fuses | 3 × 16 A |
| Connection cable | 5 × 2.5 mm² |
| Included | D-body with heating elements and temperature sensor, no PC board |
| Usva (10.2 kW, three-phase only) | |
| Recommended sauna room volume | 9–15 m³ |
| Recommended amount of stones | Approx. 30 kg |
| Fuses | 3 × 16 A |
| Connection cable | 5 × 2.5 mm² |
| Included | D-body with heating elements and a 400 V PC board |
| Usva L (12.8 kW, three-phase only) | |
| Recommended sauna room volume | 11–19 m³ |
| Recommended amount of stones | Approx. 50 kg |
| Fuses | 2 × 3 × 16 A |
| Connection cable | 2 × 5 × 2.5 mm² |
| Usva L (15.3 kW, three-phase only) | |
| Recommended sauna room volume | 14–24 m³ |
| Recommended amount of stones | Approx. 50 kg |
| Fuses | 2 × 3 × 16 A |
| Connection cable | 2 × 5 × 2.5 mm² |
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 Usva stands on four adjustable feet and its height can be set between 790 mm and 940 mm. When the heater is integrated into the benches, at least 150 mm of the heater must remain visible above the bench surface for a 20 mm bench clearance; if less is visible, the clearance to the benches must be at least 100 mm. The separate power unit must be installed no higher than 600 mm from the floor, and a door switch or safety device must be fitted when the heater is operated remotely or with the Wi-Fi controller.
Sauna stones
The 4.5–10.2 kW models take approximately 30 kg of sauna stones and the 12.8 kW and 15.3 kW L models approximately 50 kg, purchased separately. We recommend 20 kg boxes of 5–10 cm Olivine Diabase or Vulcanite sauna stones; decorative white cover stones are also available separately. Only stones intended for sauna heaters should be used; ceramic stones must not be used.
Brand
Tulikivi is a Finnish soapstone and sauna heater specialist; the Usva belongs to its Kevo collection of metal-clad heaters.
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 Usva is a freestanding electric sauna heater from Tulikivi’s Kevo collection: a minimalist round column in black or white metal with height adjustment from 790 mm to 940 mm, so it can stand alone or be integrated into the benches. Six outputs cover saunas of 3–24 m³: the 4.5 kW, 6.8 kW and 8.5 kW models suit single- or three-phase supplies, while the 10.2 kW, 12.8 kW and 15.3 kW models are for three-phase supplies only. Low safety clearances make it easy to place in a modern home or public sauna, the heater can be set to evaporate steam at different speeds, and a stone load of approximately 30 kg (50 kg on the 12.8 kW and 15.3 kW L models) gives a pleasant, soft steam. Sauna stones, contactor and controller are purchased separately; the Usva is compatible with the Tulikivi Complete Wi-Fi Control System and with the HUUM UKU Local and Wi-Fi controllers.
Features
| All models | |
| Outer casing | Metal, black or white |
| Height (adjustable) | 790–940 mm |
| Diameter | Ø 360 mm |
| Weight without stones | 26 kg |
| Recommended stone size | 5–10 cm |
| Control method | Separate Tulikivi control unit, sold separately |
| Minimum sauna room height | 1,900 mm |
| Clearance to the sides | 50 mm |
| Clearance to the front | 20 mm |
| Minimum distance to ceiling | 1,050 mm |
| Clearance to the floor | 50 mm |
| Connection cable type | H07RN-F rubber cable, 400 V 3N |
| Usva (4.5 kW) | |
| Recommended sauna room volume | 3–6 m³ |
| Recommended amount of stones | Approx. 30 kg |
| Fuses | 3 × 10 A |
| Connection cable | 5 × 1.5 mm² |
| Included | D-body with heating elements and temperature sensor, no PC board |
| Usva (6.8 kW) | |
| Recommended sauna room volume | 5–9 m³ |
| Recommended amount of stones | Approx. 30 kg |
| Fuses | 3 × 10 A |
| Connection cable | 5 × 1.5 mm² |
| Included | D-body with heating elements and temperature sensor, no PC board |
| Usva (8.5 kW) | |
| Recommended sauna room volume | 7–13 m³ |
| Recommended amount of stones | Approx. 30 kg |
| Fuses | 3 × 16 A |
| Connection cable | 5 × 2.5 mm² |
| Included | D-body with heating elements and temperature sensor, no PC board |
| Usva (10.2 kW, three-phase only) | |
| Recommended sauna room volume | 9–15 m³ |
| Recommended amount of stones | Approx. 30 kg |
| Fuses | 3 × 16 A |
| Connection cable | 5 × 2.5 mm² |
| Included | D-body with heating elements and a 400 V PC board |
| Usva L (12.8 kW, three-phase only) | |
| Recommended sauna room volume | 11–19 m³ |
| Recommended amount of stones | Approx. 50 kg |
| Fuses | 2 × 3 × 16 A |
| Connection cable | 2 × 5 × 2.5 mm² |
| Usva L (15.3 kW, three-phase only) | |
| Recommended sauna room volume | 14–24 m³ |
| Recommended amount of stones | Approx. 50 kg |
| Fuses | 2 × 3 × 16 A |
| Connection cable | 2 × 5 × 2.5 mm² |
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 Usva stands on four adjustable feet and its height can be set between 790 mm and 940 mm. When the heater is integrated into the benches, at least 150 mm of the heater must remain visible above the bench surface for a 20 mm bench clearance; if less is visible, the clearance to the benches must be at least 100 mm. The separate power unit must be installed no higher than 600 mm from the floor, and a door switch or safety device must be fitted when the heater is operated remotely or with the Wi-Fi controller.
Sauna stones
The 4.5–10.2 kW models take approximately 30 kg of sauna stones and the 12.8 kW and 15.3 kW L models approximately 50 kg, purchased separately. We recommend 20 kg boxes of 5–10 cm Olivine Diabase or Vulcanite sauna stones; decorative white cover stones are also available separately. Only stones intended for sauna heaters should be used; ceramic stones must not be used.
Brand
Tulikivi is a Finnish soapstone and sauna heater specialist; the Usva belongs to its Kevo collection of metal-clad heaters.
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.
