daestrom wrote:

...if the basement or whereever has 100% RH at 50F, then your dehumidifier
is discharging it's heat at about 55F, not much use there.

I suggested moving some 55 F 100% RH air up from the basement floor to
the living space where the dehumidifier lives. Harvard Physicist Bill
Shurcliff suggests putting a window AC in a basement stairwell with
the warm side in the living space to air condition the basement and
heat the house in wintertime.

Nick