Tulikivi
Tulikivi Hile UTU 20 Wood Burning Sauna Heater
Tulikivi Hile UTU 20 Wood Burning Sauna Heater
This product has a lead time of around 5 days
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Description
Thanks to its clean, compact design, the UTU wood‑burning sauna heater fits easily into saunas of various sizes. Made from durable black steel and fully cladded for a modern appearance, the UTU combines rugged construction with a sleek, contemporary aesthetic.The door of the stove can be modified to open either on the left-or right-hand side, giving more options for the placement of this heater.
Correct amount of stones to be purchased separately.
We recommend 60kg (10-15 cm) of either olivine diabase or vulcanite sauna stones.
Browse sauna flue kits and chimney parts.
Key Features of the Tulikivi Utu 20
-
Finnish design and production quality with reliable performance.
-
Heater output: 20 kW, capable of heating sauna rooms from 8 to 20 m³.
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Fully cladded in black steel, with steel frame.
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Generous stone compartment (up to 60 kg) for rich, long‑lasting steam.
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Adjustable feet / leveling legs included (50 mm adjustment) for stable installation.
Technical Specifications
| Specification | Details |
|---|---|
| Power output | 20 kW |
| Maximum wood load | 8 kg |
| Size of sauna room | 8‑20 m³ |
| Height | 920 mm |
| Weight (without stones) | 65 kg |
| Maximum stone capacity | 60 kg |
| Adjustment legs | 50 mm |
Safety Distances
| From | Minimum Clearance |
|---|---|
| Side walls | 200 mm |
| Front (footboard/in front of heater) | 1000 mm |
| Ceiling | 1000 mm |
| Floor | 40 mm |
Flue connection details:
|
Location of smoke outlet, Rear (from the floor to centre of the outlet) |
770 mm |
|
Location of smoke outlet, Top (from the rear edge to the middle of the outlet) |
175 mm |
|
Smoke outlet diameter |
115 mm |
Technical Specification
Technical Specification
Dimensions:
|
Width |
500 mm |
|
Depth |
600 mm |
|
Height |
920mm |
|
Weight |
270 kg |
|
Firebox width |
300 mm |
|
Firebox depth |
400 mm |
Heating Technology:
|
Heater output |
20 kW |
|
Amount of wood |
8 kg/h |
|
Size of sauna room |
8-20 m3 |
|
Flue class |
T600 |
|
Amount of stones |
60 kg |
Safety Distances:
|
Side and back |
200 mm |
|
Front |
1000 mm |
|
To the ceiling |
1000 mm |
|
To the floor |
40 mm |
Flue connection details:
|
Location of smoke outlet, Rear (from the floor to centre of the outlet) |
770 mm |
|
Location of smoke outlet, Top (from the rear edge to the middle of the outlet) |
175 mm |
|
Smoke outlet diameter |
115 mm |
Installation
Warranty
Warranty
Delivery & Returns
Christmas and New Year's Shipping Update (Updated 2nd December 2025)
Please note the following changes to our pallet shipping and DPD delivery service on parcel orders over the Christmas period.
Our warehouse is fully closed for operation over the following days: Wednesday 24 December, Thursday 25 December, Friday 26 December, Wednesday 31 December and Thursday 1 January.
Orders requiring a pallet
The last dispatch date for orders requiring a pallet is Friday 19th December 2025. Pallet orders dispatched on this day must be booked and signed for with one of our sales team in advance.
Please note:
- Pallets dispatched on 19th December will be delivered on either 22nd or 23rd December, depending on your postcode
- We strongly advise against booking deliveries to the Highlands or Channel Islands close to the 19th December, as these may be held at the hub over the festive period
- There may be limited availability for pallet shipping on this day and we cannot guarantee that available slots remain
We will commence our regular pallet shipping service on Monday 5th January 2026.
If you have any questions about your pallet order, please get in touch with our Sales team: +44 (0) 20 8050 2895 or email info@finnmarksauna.com
Small Parcel Orders
DPD will deliver as normal up to and including Tuesday 23rd December 2025. Our daily cut-off for next day delivery is 2pm, with orders placed by 3pm on Tuesday 23rd December being our final dispatch before Christmas. Whilst we use a DPD Next Day delivery service, this is not a guarantee - please order earlier to avoid disappointment.
Limited dispatch service: We will dispatch DPD orders on Monday 29th December and Tuesday 30th December only during the festive closure period.
We will commence our regular delivery service on Monday 5th January 2026.
*Estimated delivery times are applicable to the UK mainland only (excludes Highlands and Islands). Additional delays and charges will be required for Non-UK Mainland and Highlands and Islands deliveries.
