A boiler that uses mains spark (electric) ignition, allows gas to the burner where it is ignited, after the fan/aps, etc has proved OK, etc, and when the flame has been detected by the detection electrode, igniton sparking stops. there can also be 2 stages where a small amount of gas is let through, and when ignited and proved OK a full rate is allowed to the main burner.
But how does a boiler with an intermittent pilot work? is it the same principle? just with 2 stages? am curious.....
But how does a boiler with an intermittent pilot work? is it the same principle? just with 2 stages? am curious.....