I never did a water/kwh calculation but when I needed a dehumidifier I
had a 40 pint one also and it filled roughly every ten hours (in
Westchester County, near CT).

If the previous owners left it in the house, it's likely, don't you
think, that it didn't work all that well?

Shaun Eli
www.BrainChampagne.com
Brain Champagne: Clever Comedy for Smart Minds (sm)