How does a liquid heater work?

  1. The liquid heater’s unit is supplied with fresh air from outside, which is drawn through the air intake pipe, and sent to an internal combustion chamber.
  2. The received air is mixed with fuel delivered by a metering fuel pump to form the air-fuel mixture.
  3. The produced mixture then is ignited by a glow plug, which starts the burning process to heat up the heat exchanger.
  4. Circulation pump coolant, water or any other heating system liquid is passed through the heat exchanger fins and is heated as a result.