First, let’s talk about oil filters. You need to change or clean your oil filter at the very least before the start of the heating season as well as halfway through the season. It is best to do it three or four times to ensure optimum efficiency. Here’s how to clean or replace the filter:
First, close the oil shut off valve. It is located between the fuel tank and the filter.
Second, unscrew the bottom (cup) to the filter housing and remove the filter.
Third, clean your filter by following the manufacturer’s instructions or recommendations. If you use disposable filters, insert a new one of the same size and type.
Fourth, replace all the old gaskets with new ones.
Fifth, screw back in the bottom of the filter housing and reopen the oil shut off valve.
If you have a unit with a pump strainer (it would be on the pump attached to the burner/blower unit) clean it whenever you clean the filter.
Here’s how:
First, unbolt the cover of the pump housing – this is where the oil line connects with the burner – and take off the cover.
Second, remove the gasket from around the rim then remove the strainer – it is a wire mesh screen, which can be spherical or shaped like a cup.
Third, soak the strainer in kerosene for a few minutes. This will loosen the sludge. Use a soft bristle toothbrush to clean it.
Fourth, look for any bends or tears in the strainer once it is clean. If it looks damaged or worn out, replace it.
Fifth, put the strainer back onto the pump, place a new gasket on the rim, and re-bolt the housing cover to secure it.
The draft regulator opens automatically to allow air into the chimney when the burner is on. If you see soot or hear a rattling, it might be time to adjust your draft regulator. Too much air in the chimney wastes heat; too little air wastes fuel. To increase the airflow, screw the counterweight inward. To decrease airflow, turn the counterweight outward. The draft regulator should be adjusted by a professional service person as part of regular annual maintenance.
Lastly, do not adjust the burner of your oil furnace unless you are trained. Always call a professional.