Sauna Pekka - Harvia GreenFlame (EN)

Woodburning stove with the lowest emissions in the world.

The Harvia GreenFlame is an ecological woodburning stove. The GreenFlame causes less strain to the environment: studies show that its carbon monoxide emissions are 80 % smaller, wood consumption is 25 % smaller, and operating life 100 % longer than ordinary wood-burning stoves. There is also considerably less particulate emission than in an ordinary woodburning stove. The GreenFlame combines an ecological sauna bath with modern design.

The patented control automation of the GreenFlame directs the air needed for burning to the right place at the right time. Wood burns longer and cleaner, and the burning efficiency stays extremely high. The body of the fire chamber is cooled with the incoming combustion air, making GreenFlame a long-lasting stove.

During the fire-starting phase, combustion air is fed to the chamber from underneath the grate. When the stove is hot, the control automation directs air on the fire. Once the fire is out and the temperature of the stove has fallen, the air input channels are closed automatically. The control automation is based on the thermal expansion of metal.

The lids of the soot opening of the GreenFlame stove are ceramic glass, allowing the warm glow of the fire to be seen between the stones. This small but substantial invention complements the atmosphere in the woodburning sauna in a whole new way! The large glass door of the stove is designed to close automatically.

The recommended size of the sauna room is 8–18 m³ and the maximum amount of stones is 40 kg.

The product is patented and it is tested by the Technical Research Centre of Finland, VTT (Certificate no. VTT-C-3710-09).

Model	20 GF
Sauna room min. m³	8
Sauna room max. m³	18
Stone capacity max. kg	40
Dimensions width mm	445
Dimensions height mm	800
Dimensions depth mm	530
+ adjustable legs	0–40 mm
Weight kg	70
Output kW	24
Safety distance to masonry walls B min. mm	50 (*)
Safety distance to wooden walls and platform C:
to sides	500
to back	500
to front	1000
Safety distance from upper surface to ceiling A min. mm	1200
Fire chamber cover mm	10
Location of smoke outlets at rear: from floor to centre of hole mm	580
Location of smoke outlets on top: from rear edge to centre of hole mm	120
Diameter of smoke outlet mm	115
(*) Leave 50 mm between the stove and walls, provided that the air can circulate in front and to one side of the stove. If the stove is installed in a recessed wall, leave 210 mm between the stove and side walls and 250 mm behind the stove.