I am looking for the best options or suggestions for zoning a 2 ton HP. Does it have to be 2 stage? Does it need to be Greenspeed?
I would like 3 zones, Main living area is priority and is 780 sq ft of an open concept area with cathedral ceilings that are 21ft from the floor. There are 3 ceiling fans for air circulation .
2nd zone is 2 bedrooms 240 sq ft and bathroom of 80 sq ft. This is on one level. There is a loft above that is open to below that no ductwork will be needed.
Using HVAC Calc m The heat loss for the main floor living area is 11800 at 7F and if I heat the whole floor it is 15500( this includes 2 bedrooms and the bathroom.) The whole house heat loss is 21258 and heat load 23110 and 21315 sensible total.
The other zone is a 1130 sq ft basement seperated into one room 580 sq ft a 120 sq ft spare bedorom and the utility room.
This will have a 4300 heat loss, and would not be used on very cold days anyway.
I have propane fireplaces in the basement and main floor if I need extra heat.
With correct zoning I think I can get my balance point down to < 10F using the York Affinity YHZ 2 ton.
I wonder what size heat strips I would need for aux heat.