Fulton Hot Water Boiler

Operating Principal and Structure Features

Fuel is injected from the burner into the combustion chamber and is ignited and burned. The high temperature flue gas flows from the front combustion chamber to the end and then reverses back and flows into the third pass fire tubes. Finally, the cooled low temperature return water from customer's heating and hot water system flows back to the boiler from the rear end inlet pipe. It becomes hot water again after it flows through the suspended cylindrical pipe in the combustion chamber and absorbs heat from the third pass fire tubes. This hot water flows out the boiler to heat up the customer's system. Once it transfers the heat to the system and cooled down again, it flows back to the boiler. Thus forms the water circulating system.