I've been doing a lot of reading and really appreciate all the wise advice on this site.
I have a 20 yr old 4 ton unit that is still chugging along, but we are planning to stay in the house for another ten so it seems worthwhile to consider a replacement. We have a 2400 sqft one-story house in Houston.
Lennox xc16 (2 stage) 4 ton with CH23-51
Advisor claims that he can not configure a unit that meets the tax credit and adequately control the humidity.
Carrier Infinity 21 (2 stage) 4 ton
Advisor claims that the furnace should be replaced if considering a two stage compressor. This solution would qualify for the $1,500 tax credit and also a $1,000 rebate.
By themselves, I would have trusted both advisors. However:
1. Did Advisor #1 fail to mention that the two stage unit would not work properly with the existing single speed fan/furnance?
2. Did Advisor #2 oversize the furnace to meet the tax credit requirements?
Thanks again for all the advice.