No, it's definitely flowing considerable air in the correct direction. The
fumes are being taken outside the house, and it's generating enough draft to
operate the safety switch and allow the burners to run.

I'm just wondering if the airflow was a few percent different thru the
venter, how much would it affect the burners? I'd think the draft
regulators (there's one at the output of each appliance) would take care of
it to an extent.

Eric

"Mark" wrote in message
ps.com...
On Oct 26, 9:32 am, "Eric" wrote:
Here's a good HVAC question I haven't seen here before...

In my house I've got two oil burners (hot air furnace and separate water
heater) vented by a Field SWG power venter. At the
ripe old age of 8 years, the blower wheel (squirrel cage) in the power
vent rusted out and actually lost a blade.

So I ordered a new wheel and installed it. The new wheel is stainless
and is designed very slightly differently from the old
one, but is definitely the correct part and is intended to replace the
one that was in there. I did *not* touch any
adjustments, just disassembled the venter enough to replace the wheel,
replaced said wheel, and reassembled it.

So my question, finally: it seems like we're getting a lot more "burning
oil" odor in the house than we were before. I can
easily believe this could just be the wind direction, but I wonder if
changing that wheel might have changed the draft on the
oil burners enough that they're now not burning cleanly.

Anyone ever dealt with this before? Should I get a tech out to readjust
the burners?

Eric Law
Wilmington, MA

are you sure the new wheel is installed and of the correct design
such that it is pushing the air in the correct direction and not in
the opposite direction.

Someone that has more hands on experience than I do can answer this
question...if you put a squirrl cage blower wheel onto the motor shaft
backwards, will the airflow be reveresed?


Mark