Any helpful input appreciated,
Matt
Depends on the house, climate, sun load, and a bunch of other factors.
Dry climate - swamp cooler
Semi-dry climate- surround outside AC coil with a filtering material
that you keep saturated with water. The moistened air is cooler, and
since the coil doesn't care about humidity, it can lower the head
pressure and costs a little.
heavy sun - plantings, white paint
otherwise cool climate - cold well water and radiator (works only
so-so, but helps a little)
All areas - insulation.
From someone in a humid zone (Ontario)
Insulation
Blinds/shades for windows
Dehumidifiers if you don't have central air (I put one in the
basement, costs less to run than AC)
Insulation
James
The biggest help is to lower the heat gain. Think insulation, drapes,
shade trees, white or light colors etc.
First: Keep the sun out. use awnings, sunscreens, etc on the windows.
2nd: Limit the amount of indoor heat. Switch to CFL bulbs, don't
cook or bake.
3rd: cool at night. Open windows and run fans to cool the house
at night and then keep the cool in durring the day.
Other ideas: If you have a basement, try drawing the air up
from the basement, it will be naturaly cool.
Use a small window AC to cool just one part of the house.