Hargassner - Model Nano-PK Plus 6-32 kW - Pellet Boiler - Brochure

Each fuel has a certain water content. During combustion, this water is vaporized and normally goes out through the chimney with the exhaust gases. This energy is extracted from the exhaust gas by the stainless steel exhaust gas heat exchanger. This increases the efficiency up to 106%. This reduces heating costs and pellet consumption.