Oil-Fired Hydronic Heating

As the burner starts, high-voltage transformer is connected to the electric circuit. Sparks jump through a spark gap just at the edge of the burner nozzle atomization of fuel. Is the spark ignites the pulverised fuel. This causes the flames in the firepot until the burner works.

Stack "stat" senses the temperature of the gases leaving the furnace. If pulverised fuel does not burn after several seconds of operation of the pump, the pump stops. Manual reset will be operated before the cycle again.

Heat from the combustion chamber is conducted with the help of the boiler wall in the water. Gases from the combustion of fuel flow through the stack into the pipe. Automatic draft regulator allows you to maintain a constant pressure in the firepot.

The room thermostat controls the water pump. The pump circulates warm water through the room radiators and returns it to the boiler. Boiler water temperature is controlled by the temperature and pressure-sensitive element in the upper part of the boiler. Sensor element is connected to the power system. It turns out burner when the temperature falls below the required level. She closes the burner turns off when the temperature reaches the desired level. High limit control is attached to the boiler house. Sometimes, this control is attached to the warm water at the outlet from the boiler. High limit control automatically shuts off the fuel in a case if the water temperature or pressure is too high. The safety valve is also installed on the boiler. This valve keeps the pressure up to the safe level.

Expansion tank is used to take care of expansion (warm)or Contracting (cold) water. The air in the tank acts as a pillow...