Harvia M3 SL 16.5kW Wood Burning Sauna Stove with Exterior Feed

Harvia M3 SL 16.5 kW wood-burning sauna stove with exterior feed

The Harvia M3 SL is a 16.5 kW wood-burning sauna stove designed so you can load the fire from another room or from outside the building. It has a glass door and a classic look for small saunas.

Best for: Small saunas (212-459 cubic feet) where you want to load the stove from outside the sauna room.

Specifications at a glance

• Model: Harvia M3 SL (item WKM3SL)
• Power output: 16.5 kW
• Recommended room volume: 212-459 cu ft
• Dimensions (H x W x D): 27.95 x 15.35 x 25.59 in
• Net weight: 105.8 lbs
• Recommended stone amount: 66.2 lbs (stone size 10-15 cm)
• Color: Black
• Fuel: Wood
• Installation: Floor-standing, interior wet area
• Clearances to combustible materials: Front 11.81 in, back 11.81 in, sides 9.84 in, ceiling 3.94 ft
• Certificates: CE, EAC

Space, power and setup

Measure your sauna room, doorways and the delivery path before ordering; this stove weighs 105.8 lbs and Harvia lists about 66.2 lbs of stones for it. A wood-burning stove needs a chimney or flue to the outdoors, a safe floor and the clearances to combustible materials listed above, and Harvia lists it for interior wet-area use. Follow the Harvia manual and local building and fire codes, and have a qualified installer confirm the setup.

Questions buyers ask

What size sauna is the Harvia M3 SL designed for?

Harvia lists a recommended room volume of 212-459 cubic feet for this model, with a minimum room height of 6.56 ft. To estimate your sauna's volume, multiply its width, depth and height in feet. If you are near either end of the range, call us and we will help you compare options.

What do I need to install a wood-burning sauna stove?

It needs a chimney or flue to the outdoors, a suitable floor and the clearances to combustible materials listed by Harvia (see the specifications). The Harvia manual and your local building and fire codes apply, so have a qualified installer confirm the setup. Call us if you want help planning chimney components for your layout.

What is included with the Harvia M3 SL?

Harvia's listing does not itemize the package contents for this model. Call us or email sales@wellnessterritory.com and we will confirm exactly what ships, and what you may need to add.

What should I expect for delivery?

Curbside delivery is free within the continental U.S. The heater weighs about 105.8 lbs, so measure doorways and your path to the sauna and plan for help moving it. White Glove delivery is optional and priced at checkout follow-up.

What is the return policy?

We accept returns within 30 days on unused items in original packaging; the customer pays return shipping. We also offer price match, and financing may be offered at checkout. Call 1-762-214-2594 with any questions.

Helpful guides

Browse related collections: Wood Stove Sauna Heaters, Harvia Sauna Heaters, Sauna Accessories.

Not sure which size or configuration fits your space? Call 1-762-214-2594 (Mon-Sun 9am-9pm EST) or request a quote, and our product specialists will help you compare options and plan delivery and installation.

Intended for general wellness use, following the manufacturer's instructions. Not intended to diagnose, treat, cure, or prevent any disease or medical condition. Results vary.