Sophisticated combustion air supply system combines slow and even burning of wood with reduced emissions and minimal level of particulates.
Primary air (1) is streaming right onto the wood, smoothly driving the process of decarburization. Secondary air (2) is keeping the viewing glass clean and oxidizes the combustion gases before they slip behind the flame deflector (3). In the back of combustion chamber, the gases are stirred with tertiary air (4) to let them ignite instantly.
Adjustment of air supply is carried out with a single lever (5). It's not possible to think of a more simple solution. High degree of efficiency is reached by combining large areas for heat exchange and special combustion gas deflectors.
"Iron Dogs" can be offered in a multi-fuel version, prepared for the use of fossil fuels (coal, anthracite, turf). This version is distinguished by a special grate at the bottom of combustion chamber.