Harvia Pro 20 Duo: a wood stove that heats the sauna and adjoining room
The Harvia Pro 20 Duo is a floor standing wood burning sauna stove. It sits inside the sauna, while its large glass door faces the room next door. It heats both spaces, so you can take a break by the fire between rounds in the sauna. This layout suits a sauna with an adjoining room where you want to gather and watch the flames. The stove has a stainless steel casing and a heat output of 24.1 kW.
The stove needs two boxes of stones, which are sold separately on this page. Natural stones vary in shape, so many owners buy an extra box to choose the ones that fit best. The chimney is not included, so you choose it on this page. You can also add a protective sheath that allows the stove to stand closer to wooden walls. Planning a larger sauna? See the Harvia 36 Duo two room wood stove. The Harvia Pro 20 Duo 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

































































