by pup55 » Fri 23 Jun 2006, 17:29:18
Here is the situation at exactly this moment:
I am in a 2800 square foot house in Suburbia in the SE US. We are air conditioning the full 2800 square feet. Outside temp 96F, inside temp 80F.
My wife and I are occupying two different rooms, totalling 400 square feet, but we are cooling the remaining 2400 square feet regardless. No one else is at home right now.
We do this because we have a big, poorly enginneered central heating/cooling system that was installed by the builder because it was the cheapest possible thing that would work. Furthermore, the house itself as designed is more appropriate for a place about 300 miles north of here, and unlike the homes that were designed for this climate, there is no overhanging roof, no big shady front porch to go out and sit on and rock in our rocking chairs and see the neighbors in the evening when it gets too hot, no big shade trees around (all were bulldozed to build the house). Most stupidly, we are now roasting a chicken in the oven at the same time we are trying to keep the kitchen cool.
Also, stupidly, there is a big area of cool space (the basement) but no easy cheap way to move the air from the basement to the rest of the house, and no cheap good way at the moment to retrofit the ventilation system to take advantage of this abundant free cold air.
I can assusre you that we could do without most of the air conditioning we now use by making the above modifications for this barn of a place, and also, by installing room-sized AC units like the Asians have (over the windows run by remote control as soon as you enter the room) so as to cool down the room you are in. Also, we would participate in the tradition of BBQ to get the cooking done outdoors. Same goes in reverse with heating during the winter.
But we do not do this because it is still pretty cheap to just cool the place off and not worry about it.
Stupidly, these modifications probably could have been done with little or no expense with a couple of simple considerations by the builder when they originally built the house (overhangs, a vent from the basement to the central air, positioning the house so the sun does not hit). But, since this is one of those cookie cutter homes, they were built with complete disregard to any sort of efficient retrofit. Probably the reason for this is that the archetectural schools do not worry about this stuff too much.
But, when the crisis hits, we will deal with it. I think I can scavenge enough materials from the neighbors abandoned houses to build on everything I need. I will not need to worry about building code or homeowners restrictions, so I think I will be fine.
Phoenix, on the other hand, or Vegas, or Florida: this is a completely different matter.
We could probably