Need some advice from the HVAC pros.... My mother in law is retiring this year and planning to sell her condo to move closer to us and spend more time with her grandkids. She lives on the MA/NH line (MA side). Her condo was built in 88 as I understand and has all the original mechanicals, which I think where pretty high end at the time. Everything works fine and she hasn't had any service problems. The thing is, her realtor is telling her to replace it all because "buyers will want new". Personally I think its a load of you know what, but that's the story. He is telling her she wont get a decent price until its all updated. She has been calling local HVAC people to get opinions. First guy that showed up said "its not up to code" and wants to replace everything (heat, DHW, AC) to the tune of roughly $15,000 Second guy to return her call asked the age of the equipment and before even taking a look said "replace it all because its old" What the ???? The equipment in question is: * A Lennox Pulse gas-fired hot air furnace, C. 1988. I cant get up there to look at it in person but as I remember this is already a very high efficency unit of around 96 AFUE or so. Its direct vented through PVC just like the modern high eff. units. * A Bradford White Jetglas TTW2 gas fired water heater * A Lennox central air system, nameplate says HS18-311-7P Once again, all of this equipment works perfectly right now. She is being told to replace it both by the realtor and HVAC contractor just because its "old". Thoughts? Am I wrong in thinking its silly to replace this just due to age? Is the $15k estimate crazy or in the ballpark? (put in perspective, the condo is only valued about 200k, and she has already sunk over $10k into paint, flooring and appliances to get it 'sellable') I asked her to send me some pictures, not sure if you can make out much useful but here goes.