Just got a quote to replace our furnace, while under our crawl space he said he noticed the evaporator/coil was almost rusted out. He said we should replace both the a/c and the furnace since we would be switching refrigerants and that replacing the coil was a waste of money because if the a/c dies the coil will need to be replaced anyway. He said the coil replacement was about a xxxx dollar job. Is he blowing smoke or is this true? I'd prefer to just get a new furnace and not a new a/c unit. He quoted us xxxx for a Trane XV90 installed, if we do the a/c work they will replace the condensor, evaporator coil and both plenums, install external filter racks and vent furnace out our crawl with two pvc pipes. This makes the total xxxx.00 if we do everything, i'd rather just get the furnace and replace the coil if im not wasting money.
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