Jim Fry wrote:You never mentioned trees.
Catie George wrote: I open windows at night and close during the day.
- cross breezes in the early morning from open opposite windows is really useful. Coolest time is generally just before sunrise.
Davis Tyler wrote:We had a whole house fan, but decided to remove it as part of an attic insulation project. It wasn't practical or useful when you needed it. At 9 PM in the summer when you're trying to go to sleep, it's still blazing hot outside, and you're pulling in hot humid air which doesn't help. The time you need it is 4-5 AM when it's coolest outside, but I'm not going to set an alarm to wake up, open all the windows and doors on the second floor before turning the whole house fan on and going back to sleep.
I'm sure it's probably possible, but I wonder how expensive it would be to make an adequate sized vent in the lower floor that would open on a timer in conjunction with a whole house fan that also worked on a timer? And what the difference in energy requirement would be between such a system and traditional air conditioning.
Dale Hodgins wrote:We aren't getting a little bit of benefit from evaporation. It's huge. I would guess that we are evaporating about 10 gallons per day from floors and other surfaces. Once it warms up in the morning and it's time to close the door, the fan is directed over a pool of water that sits in the lower corner of the room. There's about a 30 square foot area that becomes the evaporation pond. Air flows along the floor and then the cool air shoots up the wall and around in a circular pattern. This section of floor is much colder than the dry section.
Catie George wrote: Seriously though, if you don't have a moral objection to AC, get a portable AC on wheels for the bedroom. With a titch of plastic sheeting, you should be able to diy to fit in a casement window. Turn it on for an hour before bed.Turn it off when you go to bed. Life is so much more bearable when you sleep well and the AC should be in a small enough space and short enough duration not to kill you with electric bills....
Burl Smith wrote:Might be interesting to see what the temperature is 3feet down below the surface of the soil there in Cebu, and then figure how much cooled fluid would need to be moved thru a heat exchanger by a solar powered pump to make the idea feasible.