Harvia M3 SL: a wood stove you feed from the next room
The Harvia M3 SL is a floor standing wood burning sauna stove. Its fire chamber extends through the wall, letting you add wood from the room next door. That keeps firewood and ash out of the sauna. The glass door has a cast iron frame and lets you watch the flames from the adjoining room. Designed and made in Finland, this 16.5 kW stove suits saunas from 212 to 459 cubic feet. The fire chamber extension comes with the stove.
The stove needs two boxes of sauna stones, which are sold separately and can be added on this page. The chimney is not included, so you choose it on this page. You can also add a protective sheath, a shield that allows the stove to sit closer to wooden walls. Rather load wood inside the sauna? See the Harvia M3 wood burning stove, which is the same size. The Harvia M3 SL ships free from Norse Steam with No Sales Tax (except WY) and our 100% price match guarantee.
The Heart of the Sauna
Be it an electric or a wood-burning heater, steamy or dry, one thing is for sure; it heals you. Harvia’s heaters are your traditional source for modern well-being.
From the beginning, Harvia’s heaters have been forged with quality as a priority. With over 70 years of craftsmanship, Harvia heaters are reliably built to last. Easy to use, practical, and safe – you are sure to find a fitting heater for your sauna.
Harvia Electric Sauna Heaters
Harvia's Electric Heater Collection Include a wide array of wall mounted and floor standing heaters, suited for all sauna designs.
Harvia Wood Burning Heaters
Wood burning heaters bring you the most authentic sauna experience. Learn more about low emissions from woo burning sauna heaters.
Combi Heater with Steam
Combi heaters are designed with steam in mind. The Combi heater is an electric heater with a built-in steam generator and precision controls. The adaptability of this model meets any humidity level and preference.
Combi Sauna Heaters






























































