Narvi Minex Domestic Electric Sauna Heater

Wall Mounted Narvi Minex Electric Sauna Heater

Next Day Delivery on some models, call for latest stock!

Note: Sauna stones to be purchased separately

This heater requires up to 15kg of sauna stones. We recommend using 5-10cm Olivine Diabase or Vulcanite Sauna Stones for optimal performance.

The Narvi Minex domestic electric sauna heater is specially designed to fit in small or micro saunas and sauna cabins. It is ideally suited to fit in small spaces within saunas that have a smaller internal capacity. Whilst the heater itself is small, as with all Narvi heaters, it boasts the largest stone capacity for it's size on the market. At 3kW and 3.6kW variants, this sauna heater is also perfect for homes with not much available power capacity - ideal for fitting a shower-sized micro sauna in apartments, small homes or "tiny-houses".

This electric sauna heater may be Narvi's smallest but every consideration is made during design and manufacture to ensure the largest possible stone capacity. A large stone capacity is what creates a pleasant relaxing heat (not a harsh radiated heat characteristic of heaters without stones) and onto these sauna stones, water can be thrown creating the löyly (or sauna steam). Their drive to produce highly durable, authentic Finnish sauna heaters with large stone capacities is what sets Narvi apart from all other sauna heater manufacturers. The sauna heaters are only built with the highest grade materials, in Finland, the home of sauna.

The Narvi Minex is manually controlled by dials on the front of the sauna heater unit. The heating elements in the Minex are Narvi’s own large diameter (8.5 mm) coils that reduce the overheating risk significantly and provide reliable performance throughout their notoriously long lifespan. The heater comes in two finishes: black & stainless steel. 

This heater must be installed by a qualified electrician. 

Correct connection of your Narvi electrical sauna heater in the UK - 

*Installation and maintenance must be done by a certified electrician

*Electricity supply must be isolated and/or switched off from the fuse panel prior to any installation or servicing work

*In accordance with European standard IEC 60364-7-703 part 703.412.5 an electrical sauna heater does not have to be connected through a Residual Current Device (RCD). This is also in accordance with BS7671:2018 part 703.411.3.3.

*For reliable operation, Narvi strongly recommends that the power supply should not be connected through a Residual Current Device (RCD)

*Other electrical devices in a sauna room should be connected through a Residual Current Device (RCD)

*The power supply cable must comply with BS7671:2018

*The instruction manual of the product and local electrical regulations must be followed

To learn more about installing electrical heaters on domestic power supplies, see our "How to choose the right electric sauna heater" page.

Product Specification

Warranty

The warranty on this Narvi Sauna Heater is 2 years in private use. The heating elements have a 12-month warranty.  

About Narvi Oy

You can browse our wider Narvi collection here. 

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 electrician/builder/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.