NFT: High Efficancy Gas Furance

will need a PVC (fresh air) intake and also a pipe to vent out, so make sure you have that or are able to and want to have those pipes installed.

New furnaces work really well--high efficiency or not and you will see a big improvement. And gas fuel is easy peasy and clean. The furnaces last a long time.

Work out the number yourself to see if the difference in cost will be worth the fuel savings though.

have them run the condensate through a neutralizing container with lime chips because it is acidic.

natural gas heater and A/C unit a few years ago. Already saved thousands upon thousands. Should have done it sooner.

but I have a newer gas furnace but the condeser is old as hell. Looking to upgrade next spring after the winter is over.

Am I correct in assuming that I should call a few HVAC guys to come measure what new unit would be needed? The existing one just doesn't have enough power and takes forever to cool down if I don't keep it running all day long. I just moved in in August and didn't bother fixing it, but its high on the list of things to do in 2016.

Having my 14 year old piece of shit Carrier that the builder used swapped out as we speak for a 96% Amana after a cracked heat exchanger.

From what I understand the jump in efficiency from 90% to 96% (the two options the HVAC company quoted me) will pay back the cost of the more expensive system (about $400-500) in a year. So I wouldn't think the difference between 95% and 96/97% would be worth it if there is any significant price difference.

Although I might explore getting away from heating water with the furnace though if possible.