Hot Air Generator-Thermair has 2 different designs depending on the required capacity.

Smaller capacity Hot Air Generators-Thermair are a smoke tube type design in which flue gases flow in the tubes while Hot Air flows over the combustion chamber and smoke tubes.

Large capacity Hot Air Generator-Thermair is an air tube type design in which air flows in the tubes while flue gases flow over the tubes.

The ventilation blower fitted alongside blows fresh air over the combustion chamber and the set of smoke tubes. In oil-fired or gas-fired options, an imported mono-block type fully automatic burner is provided for combustion of fuel.