The calculatory sauna volume
The volume and structures of the sauna affect the selection of heater power. The power requirement increases if there are window surfaces or heat-storing surfaces such as brick, concrete or massive logs in the sauna.
Sauna room size
The calculatory volume of your sauna is
Once technical issues have been dealt with regarding the heater, the important question of steam preferences arises. The steam from wood-burning heaters can be roughly categorised as soft or hard steam. The amount of stones in the heater largely determines what kind of steam the heater offers.
Heaters with a water tank
A wood-burning heater with a water tank is the perfect choice for a cabin sauna where warm water is not available for washing. As the sauna heats up, the water also warms up and is ready for washing. In heaters with a water tank, remember that the tank must not be empty when heating the sauna, to avoid damaging the water tank. The selection includes models where the water tank is in front of the heater or on either side. Chimney-heated water tanks are also available as heater accessories.
The location of the wood-burning heater in the sauna is determined by its installation method. In a back-flow heater connected to a masonry flue, it is good to remember the flue connection and its height. Various connection pipes are available for the heaters, which can be used to safely connect the heater to the flue. A vertical heater also requires a light metal flue, such as Harvia's steel chimney set, which is suitable for a temporary sauna. The steel pipe set for a traditional sauna includes a 1.5-meter long steel pipe and an accessory box with a meter of non-insulated flue pipe, rain cap, rubber rain collar, rain collar attachment kit, steel feed-through collar for the inner ceiling, feed-through insulator and cover. The length of the steel pipe can easily be extended with additional modules. Please note that the heater must always be installed in accordance with the manufacturer's installation and safety instructions.
Increase heater safety with heater accessories
Wood-burning heaters are available with many safety-boosting accessories, such as protective walls and protective base. The need for additional accessories is determined by the heater's protective distances, which can be reduced with the help of protective walls. In addition, it's good to remember the protective base for the heater if the heater is installed on a waterproof tile floor or wooden floor.
Cleaner burning of wood
Harvia has been invested for a long time in the product development of wood-burning heaters that promote the cleaner burning of wood. Harvia's GreenFlame heaters act as pioneers for low-emission stoves. In GreenFlame heaters, carbon monoxide emissions from burning wood are 70 percent lower and small particle emissions are about one-fifth lower compared to a heater model of a similar size.
A checklist for the buyer of a wood-burning heater
Calculate the area of the sauna remembering to take into account sauna materials
Choose the right heater for the sauna size
Decide on the location of the heater in the sauna and remember safety distances and instructions
Consider the location of the chimney in the sauna
Consider steam preferences
Decide on the need for warm water in the sauna
Finalize installation method
Choose heater stones