Hi All: First, I would like to say that this is a great site. I've been lurking for a few days and have enjoyed the reading and I even learned a few things.
Me: Small Electrical HVAC Contractor 28Yrs, 23 Yrs respectively. I have done Commercial work for the past 17 yrs.
I am going to be installing Electrical and HVAC system in my new home. Cluster Home, Basement, 1st and 2nd Flrs 4350 Sq Ft. Interior Unit E & W walls adjoin other homes. R 38 Attic, R-11 N & S Seathing, Tyvek, w/Brick.
Kolbe Insulated Windows.
N of Balto, MD
Manual J Whole House HG 29,561 HL 41014
Basement 1/2 Below Grade HG 2421 HL 6197
1st: HG 17,145 HL 22,729
2nd: HG 9,993 HL 12,088
Manual J Seemed light for Sq Ft but I have reviewed it, changed items to worst case senarios, etc.
I am leaning towards 1 System 4 Zones.
We install York Equipment so that is what I will use. Affinity 2 Stage Variable Gas Furnace and Condensing Unit.
Honeywell TZ-4 Zone Control. Haven't gotten to IAQ as yet
Also: I am using all METAL ductwork (2" Ductwrap in attic)except branches in the attic which will be flex sealed with mastic at connections.
Any comments would be appreciated. Sorry for the winded post!