Thermostahl solid fuel boilers are constructed according to DIN 4702/EN303-5 and they produced according to ISO 9001.

The boilers are made from steel and they have fire tubes.The passes are e type. It is a combination of water cooled plates and fire tubes. That means high efficiency, easy cleaning and long life. High power boilers have fireproof lining with firebricks that emit radiation and create new paths for the exhaust gases. With this heating absorption efficiency increases and at the same works like catalyst and burns all the unburned residues of pellet or biomass.

The geometric shape of the combustion chamber, the length of the boiler and the heating surface of the boiler are designed to success quick heating and low fuel consumption.

The path of the water is opposite and interactive with the path of the exhaust gases. The paths of the fumes are four for the models up to 1160kw and seven for the biggest models. Turbolators for the exhaust gases into the gas tubes increase the efficiency and reduce the temperature of the gases.

Primary and secondary air for the combustion swirls inside the metal tubes around the burner and guiding at superimposed levels in air above the fuel.

The ample combustion space,folding exhaust encircling of fire and horizontal gas tubes contribute to the perfect combustion. 

The damber in the smoke chamber regulates the draught and the exhaust flow.

The boilers are suitable with ever type of solid fuel, like pellet, agro-pellet, wood-chips, biomass, sawdust, shavings, grains, bark, plywood, briquettes, wood and alternatives fuels.

Additional appliances make automatic operation of the boiler both the feeding, the ignition, remove the ash and klinger and as well as the cleaning of the gas tubes, control of combustion, the cleaning of fumes from combustion residues and in tele-control.

All these devises of solid fuels boilers THERMOSTAHL is based on Low-NOx emissions wich was developed since any year and is part of advanced heating technologies.

Strong insulation of glass wool and rock wool with aluminum lining reduces heat loss by radiation to a minimum.

Metal covers with electrostatic powder coating covering the insulation and protects the boiler, giving to the boilers and impeccable appearance abd a modern European design.

• Strong construction
• Big size combustion chamber
• Big size feeding door
• Large heat exchange surface
• High efficiency - complete combustion
• Easy maintenance - quick cleaning
• Long lifespan
• Saving money
• 4 passes boiler
• Autmatic feeding system
• Automatic ignition
• Automatic ash extraction
• Automatic Klinger cleaner
• Oneumatic fire-tubes cleaning
• Multicyclones for ash filtering
• Lamba regulation 

• Mushroom farms
• Drying kilns
• Hotels
• Sawmills
• Swimming pools
• Schools
• Buildings
• Supermarkets
• Small - medium companies
• Small district heating
• Green houses
• Garden centers