Nick wrote?

Moving a pound of 55 F 100% RH basement air with 0.0093 pounds of
water vapor up into an airtight house and warming it to 65 with
0.24(65-55) = 2.4 Btu and drying it to 30% RH so it contains 0.004
pounds of water, releasing 1000x5.3 = 5.3 Btu, provides 5.3-2.4 = 2.9
Btu more heat than the electrical energy needed to operate the
dehumidifier.

can you run that past us again please?
Namely;
One pound of air containing 0.0093 pounds of water raised by (65-55= 10 deg.
F) = 0.093 BTU?
Drying (removing) out the water from 100 to 30 per cent = 0.0093 * 0.7 =
0.0065 lbs.
Heat released from that 0.0065 lbs of water would be .....................
??????
And that's the point where I lost it!
Can you help me out?
Terry