I am currently under contract to build a new home in SE PA. We are trying to decide on the best option for the HVAC system. I am hoping this forum and the readers will be able to educate me so that I can make the wisest decision here.
It is a 3000 sq ft. home. The only two story space is the foyer. The standard option is an 80% eff. Rheem system with a SEER of 12 (or 13). I can't quite remember right now.
The house is occupied 80% of the time during the day as my spouse works from home. He likes to be comfortable and will turn the A/C on the moment the outside temperature reaches 80. I am the exact opposite and have used the A/C about 10 times in the 4 years that I have lived in my current home. (and before he moved in)
The following options are available to us, and I would like to know what is the best configuration to be the most cost effective now and in the future:
1. Upgrade heater to 90+ 2-stage
2. Upgrade heater to 90+ Modulating
3. Upgrade AC to 14 SEER
4. Upgrade AC to 15 SEER with Hi-E Coil
5. Two zone package
6. Attic fan
Thanks in advance,