I apologize in advance for the book but all info is pertinent I think:
My contractor will be moving earth on my new house in the next 2 weeks. He is a great guy with a sterling reputation as a builder and has structured our deal in a way that helps me out quite a bit.
I say all of that because I am wondering about his current plan for my HVAC but I don't want to seem like I am grilling him over every detail. Therefore I am hoping to get some input here.
House is 1.5 story traditional with brick siding, approximately 1600 sq ft on main floor, 900 on second floor and about 600 sq ft of the basement will be finished. The family room and foyer are 2 story.
His HVAC sub uses Lennox equipment and he expects to use a 3 ton 13 seer AC unit along with a 90% effeciency furnace for the main floor and basement and an 80% effeciency furnace with a 2 ton 13 seer AC unit for the second floor.
He is planning on a return in the basement area (along with the main floor of course) and he said he would install manually controlled dampers.
This will not be a walkout basement. There will be 10 foot poured concrete walls and he is planning for exterior drainage to a sump with a pump.
This location is southern Kentucky. Pretty hot and humid summers, mild to occasionally cold winters.
Does this situation raise any red flags pertaining to humidity control or indoor air quality in the basement?
thanks in advance for any comments,