I am replacing the whole systems up and down stairs 2000 sq.ft.house. I am going with reliable brand old r-22 freon no bell and whistle unless some here talks me in it.
I am located central in NC. I have decided on 2 ton Trane 13 seer unit with 80% efficiency gas furnace for upstairs and a 2-ton gas pack pack for downstairs 13 seer 80% efficiency heat. I am also replacing all ductwork(flex)
1. What else do I need other than this to have a high efficiency system that will not take a decade to pay for itself? I think ishould tell a huge difference in new ones because old ones are 19 yrs. old, and 1 is beyond repair.
2. How important is it to have a 2 stage gas furnace
3. An air cleaner(2) is tempting but isn't filter at house good enough, all air cleaner will do is create anothe rfilter to change right? Do they really work ? can you tell a difference? Do you put one in at both up and down stairs?
3. variable speed fan why? I've heard repalcement is very expensive? Is single speed that noisy?
If these bells and whistles will make a really noticable difference in air quality then would someone please state their case.
Thanks! This is a great site for novice homeowner who once in a blue moon wants HVAC advice!!!