Five years ago, I got a new oil burner heater installed. Even before the
new burner was installed, I started noticing a strange smell when heat
started flowing from the ducts. The smell is difficult to describe, but it
has come and gone for about 6 years. Over the last 3 years, the smell, when
it comes, has declined somewhat in intensity. At first, I could hardly
stand it. I have had HVAC people look into it and they claim they can't
smell anything. Sometimes it's so subtle that you hardly notice it's there
and then the next morning it returns pretty strong. Not sure what to do
about it, but I'd like the smell eliminated. Any idea of the cause and what
steps to take to cure it? Thanks, Pennwalt
Does the boiler room have any odor?
It could be the blower sucking in ambient boiler room air through gaps in
the unit. Differential barometric pressure can greatly affect this as well,
causing building odors/gases to naturally vent OR accumulate, thus the
intermittent effect. This effect can be very instantaneous, almost
literally second by second, depending on local conditions, or last for hours
There could be a hidden intake register somewhere, picking up something
stored or decaying. Plant material/water can be pretty wierd, smell-wise.
You might try getting the blower to come on without heat, and see if the
odor appears. That would at least eliminate the heat component as a cause.
You'd be much better off posting on alt.home.repair with a Q like this -- or
really any Q on hvac.
The effing character-disordered idiots here are too busy jerking each other
off to be of any use. I think alt.hvac might be a disguised dating service
for closet pervs/broke-assed hvac techs still living with their mommies..
ahr has quite a few knowledgeable cooperative regulars there, willing to
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