Tulikivi
KAARNA Electric Sauna Heater by Tulikivi
KAARNA Electric Sauna Heater by Tulikivi
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Description
Description
The Kaarna electric sauna heater, part of Tulikivi’s Kevo collection and a winner of the Fennia design prize, pairs natural Finnish soapstone with modern heating technology. The soapstone casing stores heat and releases it evenly, giving the long, soft steam the brand is known for, and the heater can be set to evaporate steam at different speeds. Its height adjusts between 790 mm and 940 mm, so it can be built into the benches or stand free, and safety clearances are among the smallest on the market. Six outputs from 4.5 kW to 15.3 kW suit saunas of 3–24 m³, each in a choice of the lighter Classic or darker Nobile soapstone finish. The Kaarna is supplied as a D-body without a PC board, so a control system (the Tulikivi Complete Wi-Fi Control System, or a HUUM UKU Local or Wi-Fi controller), a contactor box and the sauna stones are purchased separately: allow approximately 30 kg of stones for the 4.5–10.2 kW models and 50 kg for the 12.8 and 15.3 kW L versions.
Features
Technical Specification
| All models | |
| Casing | Natural soapstone, Classic or Nobile finish |
| Height (adjustable) | 790–940 mm |
| Diameter | Ø 370 mm |
| Weight without stones | 72 kg |
| Recommended stones | Olivine diabase or vulcanite, under 10 cm diameter |
| Safety distance to the side | 100 mm |
| Safety distance to the front | 20 mm |
| Safety distance to the ceiling | 950 mm |
| Safety distance to the floor | 50 mm |
| Electrical supply | 400 V 3N, H07RN-F rubber connection cable |
| Control | Tulikivi control system or compatible HUUM UKU console, sold separately |
| Kaarna 4.5 kW | |
| Recommended sauna size | 3–6 m³ |
| Stone amount (approx.) | 30 kg |
| Fuses | 3 × 10 A |
| Connection cable | 5 × 1.5 mm² |
| Kaarna 6.8 kW | |
| Recommended sauna size | 5–9 m³ |
| Stone amount (approx.) | 30 kg |
| Fuses | 3 × 10 A |
| Connection cable | 5 × 1.5 mm² |
| Kaarna 8.5 kW | |
| Recommended sauna size | 7–13 m³ |
| Stone amount (approx.) | 30 kg |
| Fuses | 3 × 16 A |
| Connection cable | 5 × 2.5 mm² |
| Kaarna 10.2 kW | |
| Recommended sauna size | 9–15 m³ |
| Stone amount (approx.) | 30 kg |
| Fuses | 3 × 16 A |
| Connection cable | 5 × 2.5 mm² |
| Kaarna L 12.8 kW | |
| Recommended sauna size | 11–19 m³ |
| Stone amount (approx.) | 50 kg |
| Fuses | 2 × 3 × 16 A |
| Connection cable | 2 × 5 × 2.5 mm² |
| Kaarna L 15.3 kW | |
| Recommended sauna size | 14–24 m³ |
| Stone amount (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 Kaarna is supplied as a D-body without a PC board and is operated through a separate Tulikivi control system or compatible HUUM UKU console. The coupling box must be splashproof and fitted no more than 500 mm above the floor, and the connection cable must be H07RN-F rubber or equivalent; PVC-insulated cable must not be used.
Sauna stones
The Kaarna takes approximately 30 kg of stones in the 4.5–10.2 kW models and 50 kg in the 12.8 and 15.3 kW L versions, purchased separately. Use olivine diabase or vulcanite stones under 10 cm in diameter; we recommend 5–10 cm grades such as 20 kg boxes of Finnish olivine. Ceramic stones must not be used. Rinse the stones before use and place them loosely so air can move between them.
Brand
Tulikivi is a Finnish soapstone specialist, pairing natural stone quarried in Finland with contemporary sauna heating technology.
Warranty
The warranty card 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 Kaarna electric sauna heater, part of Tulikivi’s Kevo collection and a winner of the Fennia design prize, pairs natural Finnish soapstone with modern heating technology. The soapstone casing stores heat and releases it evenly, giving the long, soft steam the brand is known for, and the heater can be set to evaporate steam at different speeds. Its height adjusts between 790 mm and 940 mm, so it can be built into the benches or stand free, and safety clearances are among the smallest on the market. Six outputs from 4.5 kW to 15.3 kW suit saunas of 3–24 m³, each in a choice of the lighter Classic or darker Nobile soapstone finish. The Kaarna is supplied as a D-body without a PC board, so a control system (the Tulikivi Complete Wi-Fi Control System, or a HUUM UKU Local or Wi-Fi controller), a contactor box and the sauna stones are purchased separately: allow approximately 30 kg of stones for the 4.5–10.2 kW models and 50 kg for the 12.8 and 15.3 kW L versions.
Features
| All models | |
| Casing | Natural soapstone, Classic or Nobile finish |
| Height (adjustable) | 790–940 mm |
| Diameter | Ø 370 mm |
| Weight without stones | 72 kg |
| Recommended stones | Olivine diabase or vulcanite, under 10 cm diameter |
| Safety distance to the side | 100 mm |
| Safety distance to the front | 20 mm |
| Safety distance to the ceiling | 950 mm |
| Safety distance to the floor | 50 mm |
| Electrical supply | 400 V 3N, H07RN-F rubber connection cable |
| Control | Tulikivi control system or compatible HUUM UKU console, sold separately |
| Kaarna 4.5 kW | |
| Recommended sauna size | 3–6 m³ |
| Stone amount (approx.) | 30 kg |
| Fuses | 3 × 10 A |
| Connection cable | 5 × 1.5 mm² |
| Kaarna 6.8 kW | |
| Recommended sauna size | 5–9 m³ |
| Stone amount (approx.) | 30 kg |
| Fuses | 3 × 10 A |
| Connection cable | 5 × 1.5 mm² |
| Kaarna 8.5 kW | |
| Recommended sauna size | 7–13 m³ |
| Stone amount (approx.) | 30 kg |
| Fuses | 3 × 16 A |
| Connection cable | 5 × 2.5 mm² |
| Kaarna 10.2 kW | |
| Recommended sauna size | 9–15 m³ |
| Stone amount (approx.) | 30 kg |
| Fuses | 3 × 16 A |
| Connection cable | 5 × 2.5 mm² |
| Kaarna L 12.8 kW | |
| Recommended sauna size | 11–19 m³ |
| Stone amount (approx.) | 50 kg |
| Fuses | 2 × 3 × 16 A |
| Connection cable | 2 × 5 × 2.5 mm² |
| Kaarna L 15.3 kW | |
| Recommended sauna size | 14–24 m³ |
| Stone amount (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 Kaarna is supplied as a D-body without a PC board and is operated through a separate Tulikivi control system or compatible HUUM UKU console. The coupling box must be splashproof and fitted no more than 500 mm above the floor, and the connection cable must be H07RN-F rubber or equivalent; PVC-insulated cable must not be used.
Sauna stones
The Kaarna takes approximately 30 kg of stones in the 4.5–10.2 kW models and 50 kg in the 12.8 and 15.3 kW L versions, purchased separately. Use olivine diabase or vulcanite stones under 10 cm in diameter; we recommend 5–10 cm grades such as 20 kg boxes of Finnish olivine. Ceramic stones must not be used. Rinse the stones before use and place them loosely so air can move between them.
Brand
Tulikivi is a Finnish soapstone specialist, pairing natural stone quarried in Finland with contemporary sauna heating technology.
Warranty
The warranty card 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.
