called out a HVAC expert to check out our furnace before we used it this year. They checked it with a Carbon Monoxide meter and said that unit #1 had a cracked burner (meter was registering 3) and unit #2 was ok. They said unit #1 needs to be replace and also the ducting that is not up to current code. The unit/house is about 20yrs old. I wanted a second opinion, so I called out expert #2, with out any knowledge of expert #1, His report was that unit #2 had a bad heat exchanger but that unit #1 was running ok and the ducting was ok. Expert #2 without asking disconnected the gas to unit #2 saying he did not want to be liable.
I am really skeptical now, is there any way to check them myself and was wanting to know that if in fact either of the units has damage can it be repaired or do the units have to be replaced. Also, how do you seperate the facts from the sales pitch.