In the warmest part of the day, on the basement stairs it's HOT!
However, even if it's 80F on the stairs, the over-all basement temp
isn't going up that much..
But it is going up.. Yesterday it was 57F and this morning it's 57F..
That means the thermal mass is finally warming up..
The blowers are running a lot during the day and the Radon alarms
have stopped beeping. (High counts may have been caused by high water table).
Since the A7 (ASHP DHW heater) isn't dehumidifying the basement very much,
it's good to have warm dry air down there every sunny day.
The blowers are using a lot less power than a dehumidifier.