Thanks Sarah, Silver and Erin, for the comiseration.
Erin, it's not that the unit itself is expensive, it's the hydro it eats. My electricity bills are already huge because of the fans we have set up all over the house. I just can't add any more usage or I'll go broke on hydro alone! As Fuzzy would say "GGrrrrrr."

Thanks again for the replies all.
It's raining today so maybe it will cool off a little. Fingers crossed.
Tina