thoroughly as possible using HVAC-Calc Residential 4.0. At the default setting of indoor summer temperature of 75 the BTUH is 25,059. Dropping the indoor summer design temp to 70 increased the BTUH to 28,637. [And regardless of the humidity my wife will set it that low].
Seeing how we'll eventually sell the house [we don't plan on dying here] and there is only the two of us would a 3 ton two stage unit be a wiser choice seeing as how whoever buys it will probably have children?
I've been thinking about Rheem and I've been doing more homework. To get the tax credit I'd have to use an aftermarket coil because the none of the furnaces on Rheems page of qualifying matched systems http://184.108.40.206/FetchDocument.a...5-f72b5eccd482 are narrow enough.
Searching the CEE site http://www.ceedirectory.org/ceedirec...ultSearch.aspx gave me some matches that earn the tax credit and that would fit [the furnaces are RGPR-07A models, the narrower ones}