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Figuring heatloss on a super tight home
Running into a head scratcher on a newer home.
Customer has 2 air source heat pumps and is not a huge fan. Just does not keep him warm.
Wants a hydronic system.
Figuring on a wall hung mod con w/ panel rads.
The heatloss number do not compute. There seems to be no good way to make adjustments to the home being super tight. No diferentiation if the air infiltration is 10 changes per hour or 1 air change per hour.
House has a HERS rating of 52 and had a blower door test less than 1 change per hour.
R51 in ceiling,26 in walls. ICF foundation and slab
Is there a program that allows for this?