Harvia M3 Series 16.5kW Wood Sauna Stove
Sauna stove, Upper/Rear connections, Soot opening, Stove door, Ash box, Installation and Operation manual, 2-year warranty (Consumer use)
Yes, the M3 has rear and upper connection options, and can be tied into an existing masonry chimney in good condition. You will likely want and need a chimney liner if you don't already have one - consult your local building department.
Yes, but the Harvia Protective Bedding must be used.
Make an opening in the fireproof wall for the flue connection. Notice that the opening has to be at the correct height, if you intend to use, for instance, a protective bedding. The hole should be slightly larger than the flue connecting pipe. A suitable gap around the connection pipe is ca. 10 mm. It is advisable to round off the inner corners of the flue opening to ensure that the combustion gases can flow freely to the flue.
Refer to manual for instructions on connecting to top of M3 to chimney.
The adjustable legs enable the stove to be installed firmly on an inclined floor. The adjustable range is 0–30 mm. Unscrew the adjustable feet to an extent that allows them to be adjusted using a wrench (17 mm) when the stove is in position.
Yes, as with all wood burning sauna stoves you should set it up outside on a calm day and 'preburn' to cure the paint until you can't smell any odors. Timing will depend on how hot you get it, but we like to get a good burn going for 4 hours before installing. Be sure to let the stove cool off before installation, preferably overnight.
Yes, all wood stoves require ventilation for proper combustion. Harvia recommends an intake vent behind stove, very low on the wall and a exhaust vent high on the opposite wall.
Black steel frame
Ideal in small sized Saunas
66 lb stone capacity (requires 2 boxes sold separately)
Designed, engineer and made in Finland
Dimensions; 15"W (390mm) x 18"D (450mm) x 28"H (710mm)
For sauna rooms from 211-459 CU. FT
2-year warranty (Consumer use)
Harvia M3 Clearances
To combustible surfaces, without protective shield
Who's it for?
Our Harvia M3 Review
If you’re looking for a wood-burning sauna stove with a classic look and modern elements, look no further. It’s popular in mobile saunas and barrel saunas, and it’s very easy to find the Harvia M3 for sale in most countries.
You can see it in action, or even try it out on SaunaShare.com where it’s one of the most popular sauna stoves for small public saunas and mobile sauna trailers.
In addition to mobile saunas, the Harvia M3 is suitable for small to medium indoor saunas that have a suitable to send the chimney up through the roof, outdoor barrel saunas, and outdoor shed style saunas.
It’s inexpensive but doesn’t look or feel like a cheap heater.
It’s our understanding that the Harvia M3 is still designed and manufactured in Finland, using high quality materials.
Note that if you are not cutting your own wood you will have to get it cut to a certain size, which can be expensive or impossible. The maximum logs that fit in the M3 are 6″ diameter and 13 3/4″ long.
If that’s an issue, use the Sauna Marketplace stove finder to dial in a heater that works best for you. Find our full ranking of the best wood burning sauna stoves here.
At a Glance:
- Glass Door
- Inside Feed
- Small to Medium Saunas
The even heat and efficient air circulation guarantee an enjoyable experience. The Harvia M3 comes equipped with a glass door, allowing the warm glow of the fire to complement the sauna atmosphere.
The color of the stove is elegant graphite black and it has a stainless steel air-flow spoiler. The M3 stove can be equipped with a pipe model water heater.
Harvia M3 Installation
Installing the Harvia M3 is as easy as any wood sauna stove – especially if using the matching components from Harvia Global.
There are more YouTube unboxing videos of people installing a Harvia M3 than any other stove, but make sure to check out the Harvia M3 manual for the best information about clearances and other safety considerations.
Verified owner Cameron Lakatos (verified owner) –
Verified owner Tyler Wingerson (verified owner) –
Very happy with the M3. First off Ben did a great job answering all of my questions and walking me thru the best stove selection for my build. Shipping was fast and painless. The stove takes 30 minutes to heat up and doesn’t use as much wood as I imagined. I also purchased the heat shield for clearance and with the help of a friend install was quick and easy. I wouldn’t hesitate to work with Ben from sauna market place again. Cheers!
Verified owner Chad S. (verified owner) –