but on these bright sunny days, we are getting 5 or 6 hours of good heating from the attic air.
Last night, it was very cold, but this morning it warmed up fast.
The back-up space heat was on half the night.
The Sanyos were back online at 7:20AM. They were turned off at 10AM, due to solar gain.
Without snow on the northern roof, attic temp climbs quickly.
I changed the software setpoint to Basement Temp+5 deg F.
(Attic must be 5 deg warmer than basement to start ventilation blowers)
Current Temperature Sensors show:
50.7 F Basement (Basement floor is 42.1 F, away from oil burner area).
64.9 F Attic
150.0 F Solar PV water tank
It's warmer in the basement during the day (while blowers are running)
and the radon levels are in the green.
