Narvi Black 16, 20, 24 Wood Burning Sauna Heater

The Narvi Black 16, 20 and 24 wood burning sauna heaters are an excellent, well-built, affordable option for all wood burning saunas. The heaters black enamel finish combines stylish modern design with durability and is very easy to keep clean. These high quality heaters are the perfect choice for those looking for a highly durable sauna heater solution. As with all Finnmark heaters, the Narvi range is CE marked and bears the Finnish key flag symbol denoting a product that is at least 95% made in Finland, something no competing brands can boast. Finnmark refuses to stock heaters made in the Far East as we believe a product should be well-built, reliable, eco-friendly and above all, durable.

The Narvi Black 16, 20 and 24 continuously burning sauna heaters have a large fire grate that improves the efficiency of the stove. The market-leading stone capacity of these stones ensure an excellent löyly and the 10mm steel fire box, again market-leading, ensures you will be leaving this heater to your grandchildren!

The Narvi Black 20 sauna heaters are available with a water tank that heats water for washing after your sauna. They also come with a glass cast iron door allowing the light from the fire to cast a relaxing glow in the sauna and to ensure the wood is burning evenly. The adjustable legs make these heaters a pleasure to install. The Narvi Black 20 has the option of being a tunnel model which is fueled from outside the sauna room, ideal for those who believe the sauna should be a place of complete relaxation.

Please note that the flue kit and sauna stones are to be purchased separately

We recommend the Kota Insulated Steel Flue / Chimney Kit.

This heater requires 50-80kg of sauna stones. We recommend using 10-15cm Olivine Diabase or Vulcanite Sauna Stones for optimal performance.

Product Specification

* Safety distances are to combustible materials.

Warranty

The warranty on this Narvi Sauna Heater is 2 years in private use.

About Narvi Oy

Browse our wider Narvi sauna heater collection. 

Product Disclaimers

All Narvi sauna heaters are CE tested and bear the Finnish Key Flag Symbol. This is awarded to sauna heaters that are made and designed in Finland, where over 95% or more of the production must be within Finland itself. There are many brands that claim to be made in Finland but are actually made in the Far East or Russia and merely assembled or labeled in Finland. Watch out for these symbols as a mark of an authentic, Finnish-made, safe, quality product:

As part of Finnmark Sauna's Endurance Ethos, we only deal in products that are market leaders in quality. We commit ourselves to search exhaustively for the highest quality authentic Finnish sauna products.

Please note, we recommend that sauna heaters should be installed by a suitably qualified builder/plumber/fitter. Finnmark Limited accepts no liability for loss or injury caused by the incorrect installation or misuse of your sauna heater. Please Contact Us if you require information on our recommended fitters.

Christmas and New Year's Delivery Notice

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 representatives latest by close of business on Friday 19th December 2025.

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. Orders for next day delivery must be placed latest by 3pm.

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.