AboutBill Brainard Expertise I can solve most heating related problems with furnaces and air conditioners(natural gas,propane, electric)(no oil or heat pumps) & some boilers and most control problems. Iam a heating & air cond contractor with 30 some years behind me. I spent 12 years working for Sears doing this type of work.
Experience I have graduated from 10 or 12 factory schools on gas furnaces ( 70%, 80%, 90%+ AFUE), basic air conditioning, air conditioning service, advanced air conditioning, oil furnaces, wall furnaces, floor furnaces, air handlers, coils, compressors, multi-speed (1 speed to 12 speed) furnaces, mobile home furnaces and air conditioners etc...
Question I bought a house about 5 years ago. The house was built in the 50's. I had to have a new unit installed about 2 years ago and everything is working fine but I have a question. There is no filter for the return vent and never was one. Is this normal?
Answer The filter is usually inside the furnace. Open the blower door & look. They mounted inside the cabnet next to the return duct. If it is missing, that is where to add one. Have fun. Later .... P.S. When they installed a new unit, they should have installed a filter holder. I always do. Open the door & see.
