Well, I have posted a few times and gotten some good info from the pros here. Just thought I would post the results of the first months utilities. I have read some threads here where peoples bills have seemed out of whack after having new systems installed. On the surface, mine doesnt look like I have had any savings, but actually, I think I have seen a substantial reduction in cost. Here it goes:
July 04: 30+ year old Amanna 2 1/2 ton - 1133 kw used @ 72 degree avg. temp. Thermostat kept @ 78 degrees. Not real comfortable.
July 05: New Tempstar TCA230 w/ EXM36 coil and T9MPD Furnace - 1136 kw used @ 79 degree avg. temp. Thermostat kept at 75 degrees. Felt downright chilly at times.
I have also put in new windows and added insulation in the walls and attic, so its hard to determine exactly what the savings are. But when you factor in the huge swing in temp this yr vs. last, plus the fact that I could get the house to 75 degrees (old unit just couldnt get under 78, tired I guess)
My point here is that as homeowners, we need to look a little deeper than just the bill we get every month. I wish I could quantify the results down to a percentage, to be able to calculate some kind of Return on Investment. I think there are too many variables.