The issue with limited information.
The house is new ICF construction, 5T water to water Geo unit,
have a 50 gallon buffer tank, lower level floor is concrete, main floor
is gypcrete. System was designed for the house or so I was told. There
is NO outdoor reset. Floor tubing is in the gypcrete and concrete 12"
on center.
On cloudy days, the house stays comfortable, just on
sunny days when the geo does not run all day is when there are comfort
issues. The house temp stays above the set points on the thermostats
and the water in the system cools to about 82 degrees. The normal set
points on the system points are geo on at 92 and off at 98. So when the
whole system is calling for heat and the water temp is 82 the geo runs
all night before normal temps are regained.
So, slow to heat
thermal mass with slow to heat water gives me uncomfortable house on
cold evenings after a sunny day.
I see a couple of problems here but thought I'd run it by the pro's.
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