New home build HVAC
We are in the process of planning a new build, modern style retirement home, on our wooded lake property in Northern Wisconsin (54161 zip, top of zone 6).
Here is a summary of the design:
Fully rigid foam insulated grade beam slab on grade (sandy soil).
Centrally located 8′ x 12′ utility basement.
Attached 25 x 25 garage. (with in floor heat?)
Main level 1750 sq feet with;
North half for 2 bedrooms, 2 baths & laundry/mud room, small loft with clerestory windows and attic spaces above. 1 patio door to East in Master.
High wall, awning windows in the North rooms.
Open concept Southern half with;
Vaulted ceilings and combo awning over fixed window units on South wall plus 1 patio door to East screen porch.
Wall mounted gas fireplace insert in Great room.
Heated bath floors, regardless of heating system selection.
We will install a recovery ventalator for air exchange.
All windows and doors will be Northern climate, higher efficiency to reduce heat gain/loss.
3′ roof overhang all around.
Without to much detail, we will build 2×6 exterior walls with a combo of “Zip wall” foam exterior sheeting, spray foam layer to seal and bat insulation to fill the cavities. Great detail will go into interor and exterior air sealing to prevent leaks.
The roof system is in flux and our achritect will design for the best R value.
We have read plenty of related acticles & blogs (here and elsewhere) and understand the basics and cost/savings aspects for the different HVAC systems available. We have both natural gas and electrical avilable on site.
For the comfort aspect we have been focused on “in slab” hydronic heat supplied by a combo on demand gas unit with domestic hot water.
After all this reseach our question is … what is our best “Green” option for comfort heating and the occasional air conditioning/dehumidifing.
Christine & Pete
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