The sleek, modern design of the Narvi Slim has great potential for innovative sauna design. The Slim can be fitted with ease, either on a high base or recessed into the sauna benching. The bench collar or high base are available in the Sauna Accessories section of our site. The Narvi Slim is also a great choice as a freestanding heater for narrower sauna rooms. In order to provide to accommodate for the narrower design without compromising on Narvi’s renowned löyly, this heater has a greater width which has the added benefit of spreading the heat more evenly throughout the sauna.
This heater looks great in both modern and traditional sauna designs and comes with a separate control unit which is a stylish and practical way to accurately control the sauna temperature. This control unit can be fitted outside the sauna too. The heater is also compatible with other control units and thus is available as a standalone. However, please note that a control unit is required for this heater to function.
The addition of white cover stones to the heater will ensure an elegant, refined sauna experience. The heating elements of Narvi electric sauna heaters have an exceptionally large diameter (8.5 mm), improving the durability of the product and increasing its lifespan, as well as reducing the chance of overheating significantly.
The Slim can be safely and stylishly installed within sauna benching with the use of an installation flange. To install the Narvi Slim within raised benching, you will also require the Narvi Slim Raised Installation Base.
This heater must be installed by a qualified electrician and can be easily installed on both single phase and three phase power supplies.
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 sauna heater" page.
|Model||Narvi Slim 600||Narvi Slim 900|
|The capacity of the sauna||5–8 m³||8–14 m³|
|Power||6 kW||9 kW|
|Measurements and weight|
|Height||70 cm||70 cm|
|Width||62 cm||62 cm|
|Depth||24 cm||24 cm|
|Heater weight / Amount of stones||17 kg / 30 kg||17 kg / 30 kg|
|Fuse||3 x 10 A||3 x 16 A|
|Connecting cable||5 x 1.5||5 x 2.5|
|To the sides||60 mm||60 mm|
|Upwards||1200 mm||1200 mm|
|To the floor||30 mm||30 mm|
* Safety distances are to combustible materials.
About Narvi Oy
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 labelled 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 with 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.
For shipping prices please see our Shipping terms page.
We hope that you will be happy with everything you purchase from Finnmark. If you are not happy with your purchase, please get in touch with our customer service team and return your product with proof of purchase to:
Finnmark Returns, Unit 44 Enterprise City, Meadowfield Avenue, Spennymoor, DL16 6JF
- Within 30 days from the date of purchase or receipt of the product, whichever is the latest date.
Please read the sections below for more information:
Any damages or quality issues must be clearly written on delivery notes and the damages must be reported to Finnmark Limited within 24 hours of the delivery. No claims for damages or quality issues will be accepted if delivery notes are not signed for as damaged.
Goods must be checked on delivery. Any quality issues, shortages in quantity or missing items must be written on delivery notes and reported to Finnmark Limited within 24 hours of delivery. No claims for quality issues, shortages or missing items will be accepted if delivery notes are not signed for as short.
Goods where damage is identified at the point of delivery can be refused by the customer and will be rerouted to us. On receipt of the goods, we can provide a refund or replacement.
You will be required to undertake troubleshooting to establish the issue. You may be asked to provide photos and videos which will be required to diagnose the issues.
If your product develops a fault, this will likely be covered by the manufacturer's warranty. These differ from product to product and the warranty/guarantee information can be found in the relevant section on the product page. To discuss a manufacturers warranty claim, please contact our Customer Services team. They will require photo and video evidence to help submit your claim in order to resolve the issue. In some cases this may warrant a replacement part for repair or full exchange to replace the goods in accordance with the terms of the Consumer Rights Act 2015. This does not affect your statutory rights. The appropriate response will be established by our customer services team and their decision on the appropriate action is final.
Please note, on any of our sauna timber products, no manufacturer's warranty or guarantee is offered. The manufacturers do warrant the timber grading standards in line with the European or Canadian timber grading standards.
Right to cancel online orders
Under the Consumer Contracts Regulations 2013 you have the right to cancel your order, at any time up to 14 calendar days after the day on which you receive your delivery with the exception of any bespoke or made to order items, if unsure if the item is bespoke, please contact our sales team on:
The Customer must first contact us to let us know that you wish to cancel the order.
In the event that the goods have been received before an order is cancelled the products must be returned to the point of dispatch at the customer's own cost and risk.
The goods must not be unpacked and be sent back in the same condition as they were received. Once Finnmark Limited has been informed of the customer's intention to return products, the goods must be received at the point of dispatch within 7 days.
All items must be returned along with their original packaging and with sufficient protection to avoid damage occurring in transit. The customer is wholly responsible for the goods in transit and any damage. Goods must be sent by secure carrier and signed for.
In the event that the goods were sent directly from a supplier, the return must be made to the dispatch depot. All supplier fulfilled return charges, including re-stocking charges, handling charges and haulage charges must be paid in full by the customer. Each manufacturer has specific return policies, including non-return policies, which will apply to the customers’ orders.
If the customer believes an order or part of an order to be faulty, please do not return the item before contacting our sales team to explain the problem. With regards to a fault, no full or part refunds or replacements can be issued without first establishing with Finnmark Limited and the manufacturer that the fault lies with the product, in line with the Faulty Products section above.
Receiving your refund
We will issue all refunds using your original payment method. If you originally paid for a product by debit or credit card, a refund will be issued to the same card used for payment.
Things to note:
- Unfortunately, we can’t return or exchange:
- Made to measure goods
- Bespoke fabricated goods
- Design Services and Design Fees
- Gift cards
- Perishable items
- Out of date products
- Products that were marked as non-returnable when you bought them
- Sale or Clearance Items
- Shipping costs of items that have been collected/dispatched.
Once goods have been received by Finnmark Limited, it will be inspected to ensure no transit damage and check the goods are in a resalable condition, refunds will be processed within 7 days. Refunds on goods returned directly to manufacturers are subject to longer processing periods. Only once Finnmark Limited have received confirmation of the refund from the supplier the refund will be processed and any manufacturer's charges deducted.
Delivery fees and charges will not be refunded.
Processing of Refunds
Once received and the return successfully passes inspection your refund will appear in your account in 3-5 days.
Your refund can take up to 14 days to appear in your account.