Originally Posted by Green Squall
Is cleaning an oil furnace yearly necessary? I have a family member who hasn't done it in years and I'm concerned. The furnace is from the early 90's.
Not really, the only things that get serviced are the air filter, the oil filter, and the jets (the little nozzles the oil squeezes thru as it’s being squirted into the combustion chamber). An oil company would say every year.. I’d say at least every 3-4years it should be done.
More of a chance that the furnace fails than it starts a fire...
Eventually Either one of the filters or the jets gunk up and impede flow of fuel or air.. n then the furnace stops working.