One contractor advised that if we have a current 13 SEER unit if we replace with a 14 SEER it will be no more efficient as the furnace will not be replaced simultaneously. True? Also
that high efficiency vents be installed in lieu of those in the ceiling now. Lastly, a variable speed air handler was recommended in that it would make it much more energy efficient. So as far as putting the money where it's needed most if we cannot purchase all that was recommended:
1. 14 SEER, not 13
3. New vents
4. Variable speed air handler
As the first 2 were said to reduce energy costs by 25% and the air handler by 25-35%, gosh, are we going to be able to cut bills in half? Seems a bit unlikely...
Note that the house is 11 years old, 2340 sq. ft, and high ceilings. I thought the house was cooler in winter b/c of the heat rising. Must be a 10 degree differnce in warmth at my height and 10 ' up. Was told the humidifier and change of vents would make it much more comfortable in winter. I'm wondering if the heat still won't go toward the ceiling.
LASTLY, how do I know what size of a/c unit I currnetly have and which SEER? Also receiving conflicting answers. Thanks!!
Could I get an unbiased opinion please? The house is 11 years old, a builder grade insulation package and 2300 sq. ft. The ceilings are fairly high and I am cold every winter as the
heat goes to the ceiling. Doesn't seem to matter much if I get space heaters. Anyway, he says if I add a humidifier and do the heat pump it will be less heat bill and more comfortable. But my cost goes from $4400 to $10,000. As I will only live in the home 3-5 years I don't think I will recover the difference. Comments? Thanks!! And do I really need a Trane or can a lesser quality unit suffice since I really don't want to invest for the long term?
Commented on Oct 07, 2011
Thanks for some great input. We are not on GA Power here in our part of Gwinnett Co. so that
may have an effect on possible rebates. I'm still wondering if one method of heating is more efficient than another, i.e. gas vs. electricity in this area and if I just need my a/c replaced that would exclude heating, right? The only reason to include a furnace is to make my system more efficient? Any way to calculate payback? Thanks bunches for all the expertise!
a/c guy put more freon in and says I have a leak in the coil. Can replace coil or system System is 10 years old; is coil main part of system? Will unit last many years if coil replaced
or good chance of system failing in next year or 2 anyway? He says units typically need replacing after 10 or 12 years so don't want to invest in new coil if system will go out soon anyway. Opinions? Thanks!
It's been 95-97 in afternoons the past week and my upper unit is blowing cool air, but not keeping it set at the thermostat temp. At night it's fine. Need replaced or just too dang hot out for a/c to keep up with at the hottest hours?
Commented on Jun 29, 2011
Replaced the unit; thanks for all the help offered!