According to CR:
Contractors they survey say units with a SEER of 11 to 14 tend to hold
up best. SEER of more than 14 tend to be more complex, with more that
can go wrong.
Any opinion on this? It seems that anything above SEER 14 is just a
waste of money. Are you really going to save that much more a month to
make it worth it? And will it give you more trouble?
It really depends on where you are located... here in the south, the payback
on the a/c or a heat pump is really pretty quick as we have 9 months of
summer here as opposed to 9 months of winter sports where you would actually
see a payback from a 96% AFUE furnace.
jzjz had written this in response to
I agree. This 30+ Year contractor is just running his mouth without
really thinking. He probably lives in a little house with $100 a month
ac/heating bills. If you have a small heating or AC bill, than cutting a
small bill in 1/2 won't help pay it back very fast.
However I have a huge problem. I have 5500 square feet and I'm seeing $500
to $600 bills with this piece of junk 12 seer york I have. If those bills
were cut in 1/2 it would save about $250 a month. It would pay for itself
in about 2 years. There's at least $5000 a year spend on heating an air
conditioning here and it's an electric nightmare. Back when electric was
more affordable it wasn't too bad. But they raised our electric rates by
over 60% in one year!
I'm aware that a 24 seer probably wouldn't really cut the bill in 1/2, but
it at least gives me hope that it would pay for itself in a reasonable
time. If not in 2 years then maybe 4 or 5. Even if it were 6 or 7 it
would be worth the chance on it. I just wish I knew the exact figures..
I think this is their speculation and have nothing to base it on since the
other units are so new. Also money is being lost ever month on 11 SEER
untis due to the inefficiency. It depends on what their original bills
are like. I've noticed a lot of contractors are LIARS and are always
protecting THEIR interests. If it means more training or a complex unit,
they tend to advise against that for their own selfish reasons. This fogs
the issue some.
A contractor who doesn't keep up with hi-tech. stuffs with ongoing
proper training won't really understand what they are dealing with. Like
automotive mechanic who does not understand basic electronics.
When I had my a/c unit installed I wanted to have wireless thermostat.
The guy did an excellent install job but had no clue about wireless
stuffs. At least he was honest to tell me that. I installed 'stat and
sort of gave him a quick run down. Of course complex equipment needs
more maintenance for sure. Without proper knowledge/experience dealing
with complexity it can get messy. My unit is SEER 15. I need cooling
barely 2 months a year.
Oh jesus, give it up, already.....
and the tech should be
He should, eh? How bout YOU?? Proly not.
To the OP:
iirc, energy consumption is directly proportional to the eer rating. So,
theoretically, a 24 seer should use half the energy of your 12, assuming it
really is 24.
Plus, if it's got a heat pump, you'll likely save with that as well.
Plus, it seems these newer units are very quiet -- at least the
mitsubishi/fujitsu "suitcases" -- the fujitsu my neighbor has is *super*
quiet -- you couldn't hear it if it were under a dining room table during
So, depending on how much you actually use it, you can do the calcs
yourself, just from the claimed eers and your current usage and $ per kwhr.
As others have said, insulation makes a big diff -- as does good zoning,
which is easier said than done with A/C.
You might consider a bunch of mini-splits instead of one central A/C unit --
not the cheapest way to go initially, but with the zoning inherent in
minisplits, you may save bundles way beyond even the eer diffs.
Thanks for the kind words, Mr. Hwang. The respect is
returned. I've been impressed that you are polite, and
thoughtful. I've never met a bad Hwang. Actually, can't say
as I've met one in person in any form.
Hwang = 황 = 黃, Got it? Speaking of marriage, I can trace back my whole
clan back to early 14th century. BTW, I am 37th generation. I have
document, the whole thing on two DVD set. Periodically
updated/published/distributed from clan Hq. based in Seoul, Korea(my
home town) Can you or your family match it? Do you know who you are?
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