On Fri, 26 Jan 2007 02:30:49 GMT, AZ Nomad
wrote:

On Thu, 25 Jan 2007 21:02:54 -0500, mm wrote:
Let me think about this. hmmmm Actually, if the door is open and
the water evaporates, it will actually cool the room, specifically the
surface that the water was sitting on and the air nearby. Whenever
water evaporates, it cools. And it raises the humidity.

That is asuming that you're working with cold to room-temperature
water. Flip a shower all the way to hot and open the shower door and I
can assure you that the bathroom will not be cooling down.

The first sentence in the previous post dealt with the heat of the
water warming the room. Of course the hot water will warm the room,
but it will do that whether the dishwasher door is shut or open. Just
more slowly if it is shut, but the AC doesn't care if the heat is
added slowly or quickly. It has to work just as hard to remove the
heat.

So in sum total during that time you'll be heating the kitchen, but
the evaporation of the water lessens the increase in temperature.
Same for a hot shower.

(I know the water vapor is not trapped in the dishwasher but a) even
IF for the sake of argument it were trapped, it would still heat the
room the same amount as it cooled off, and b) if the door is shut, the
water vapor's escape is slowed.)