I had a Carrier Performance 93, 80,000BTU, model 58mtb installed by
Sears for $3K. The job seams to be a good installation. They installed
2 PVC vent pipes which are pitched back towards the furnace. They
installed a 'media box' which houses a fancy 4" thick furnace filter.
They installed a new thermostat.
But they did not install a PVC liner in my existing metal chimney for
my gas hot water heater. Was that necessary? The installer said no. He
said they used a PVC liner with in a brick chimney with a clay flue
but not in a small metal chimney (B-Vent?).
Was $3,000 a decent price? It still seems a bit high even though I had
one other estimate for $3,400.
On Aug 28, 1:24 pm, email@example.com wrote:
Your price was OK for most box store subcontractors. Naturally, if you
had more bids there would be highs and lows, but likely no huge
deviation. Re: the water heater vent, call your city building
inspection people to confirm code compliance. HTH
On Thu, 28 Aug 2008 11:24:34 -0700 (PDT), firstname.lastname@example.org wrote:
How did it seem high when your only other estimate was even higher? If
you wanted it lower, you should have called 29 other contractors and
the one that would do it for $100 and a 12 pack you should have
Anyways, Sears is usually one of the highest. I dont know why they did
that one so cheap.
As for your flue liner..........what did your signed contract say they
were going to do? By the way, pvc inside a chimney where a water
heater is burning will not work well. You are probably thinking of a
aluminumized steel flexible chimney liner. Usually adds about $500 to
$1000 depending on your area and your actual chimney.
By the way, you did opt for the 10 year parts AND LABOR warranty,
right? Not 10 yr parts. 10 year LABOR. It WILL break, they all do.
Actually, compared to $3400, my first estimate, Sears at $3000 seemed
too cheap. However, someone I work with convinced me I could have done
better than $3000. That' s the reason I posted the question. I'm not
worried about a $100 one way or another.
The sales person said I would need a PVC liner. The installer said a
liner is needed only with a brick chimney. I don't have that.
Usually adds about $500 to
Not very furnace knowledgable but...
Wasn't there a final inspection done by the city/town? They did pull a
permit right? Had to be required. We're talking furnace. Installed
incorrectly can result in combustion vapor death or a fire related
death. Contract should have ..."will be installed to all codes" in it.
Doesn't matter if it did. They have to install it to code.
If you have a traditional water heater with metal venting, you may
have to reduce the chimney flue size to get the proper draft for the
water heater. B-vent does not need a liner. Clay lined chimneys need
But now that the furnace is out of the picture, your flue size is
determined strictly by the btu's of the water heater and the height of
the chimney. It may be oversized.
If you have to reduce the size of the flue, you may want to consider
putting that same money towards upgrading the water heater to a high
efficiency unit that vents out the side of the house in PVC.
Your next water heater will most likely be a high efficiency unit
anyways, so why waste money modifying your old flue?
Bottom line, check local codes for venting requirments for your size
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