I have a question regarding water heaters. I am in process of switching from
oil to gas with a new furnace and water heater. Up until today I thought
that Rheem PowerVent was the way I was gonna go, but one of contactors I had
over for furnace estmate advised me to go with regular WH with venting
through chimney. The reason he recommended regular WH is due to the extra
electricity consumed by venting motor.
So my question is, what should I do?
To get a regular WH, I have to get a liner for my chimney.
For powervent, I do not.
How much more does the motor really consume? The annual cost of operation
in literature is arpound $146.
Also, today speaking with one of previous contractors, who has quoted me
reg. 50gal AWG water tank for $860 (CAN) (I can have 50 gal powervent for
$760), he has told me the install for PowerVent is around $1200 (is that
even possible - is there any difference btw them besides venting? - he was
talking something about some special valves or something)
So who is right?
BTW, the only requirement for the install is to bring down gas pipe from
ceiling level (about 10' max). All the other connection are there from the
existing water heater (incl. nearby floor drain).
Thanks for help.
Talk to some more installers.
The draft motor electric consumption is negligible;
the tiny motor only runs while the burner is on.
The only thing special about the install is a 120V recept
for power plus a hole thru the sidewall somewhere.
Noise *IS* a consideration; the blower makes a considerable
whine which can be annoying. That may dictate where you locate
the exhaust. It's also possible to put the heater on a timer
so that it can't run when the noise would be a problem.
Get some estimates.
I've got a power vent, and not sure why anyone would ever want one. They're
more expensive to replace, more complicated to replace because of the vent
piping. ..and, I once had a problem when the sensors in the vent motor hood
(that tell the burners the vent motor is working) malfunctioned and it kept
putting my pilot light out. Damned near never figured out what the problem
"Martin" <none> wrote in message
On Tue, 27 Jul 2004 13:15:46 -0400, "Martin" <none> wrote:
I pay $20(CDN) a month to rent a power vent one. Installation was
free and I have had enough problems (leaks, diptube) that it is
actually cheaper to rent than buy. No idea what it adds to the
electricity bill, but can't be a lot as the motor isn't on very much.
Hopefully uses less gas because of no pilot light. I can't imagine it
costing that much for installation - only a couple of hours work plus
From what I know powerwents are allways more expensive to install. Estimates
I got so far (Toronto, Canada)
Powervent 50gal: about 1000$
Big difference. Contractor did not recommended to have powervent due to
higher price and more noise.
One thing I read on internet is that if you switch from low eficiency
furnace to high eficiency furnace, your regular water heater now has to heat
chimney all by itself (high eficiency furnace do not use chimney) and that
would be more problematic (not sure how much more).
"Martin" <none> wrote in message
I installed a Bradford White power vent unit 5 years ago, so far trouble
free. It is vented out the sidewall with 2" pvc, pretty cheap!!! Also has
electronic ignition so there is no pilot which makes up for the extra power
used for the power unit, and when running the power vent isn't distractingly
noisy, it is right next to the family room and below the master bedroom, no
problem or complaints from anyone, happy with choice.
Line the chimney, and go with a standard heater. In the long run it will be
cheaper! A standard heater will require zero maintainance, other than a once
a year tank flush, which hardly anybody does. The first time your power vent
heater breaks down the price will rival the replacement cost of a standard
heater! I have installed and serviced both. I have a customer right now that
has a Bradford-White with a noisy venter motor. The motor is not a
serviceable item, you need to replace the complete venter assemby, which
runs about $425, add a hour of labor and you have $500 or so. He is letting
it run till it quits. I would guess 1/4 of the power vent units we install
have problems and are often expensive repairs. The standard gravity vent
heaters we never see again for service!
I will not put one in my house!
Power vent units have their place, but if you have a chimney avalable, go
with a standard heater.
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