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Posted by Restaurant Guy on December 11, 2006, 9:37 am
Thanks all for the replies. Furnace repair is over my head, for sure.
I've decided to call a different service company (and hand them a
summary of your responses.) I'll report back here for your interest on
what they say/find/do. Wish me luck. I don't want to have to buy a new
furnace.
Brian
jamesgangnc wrote:
> I'm think he is suspecting that once the burners stop the furnace is
> drawing some exhaust back into the house. If the furnace is inside the
> house and there is a leak in the distribution side outside the
> conditioned space the furnace could be pulling make up air back through
> the exhaust. It would fit the conditions described.
>
> Steve Scott wrote:
> > Dido, why would one of the problems you outline below cause an oil
> > smell to come through the registers?
> >
> >
> > >I will say it again I am not HVAC person
> > >However from mechanical point view it seems
> > >that you are having some oil residue that it needs to
> > >be burn out, you also may have draft problem
> > >check your smoke stock make sure you are not getting
> > >down flow on shut down, does your chimney is adjusted
> > >for proper draft, any chance that your furnace creating
> > >vacuum in your basement, does your ignition system
> > >shut off before the oil, defective pump shut-off valve,
> > >the air entrapped in nozzle due to restriction in supply line
> > >oil expansion in the nozzle line assy. due to radiated heat
> > >at shut down, make sure that you have makeup air at
> > >location of furnace, your chimney temperature
> > >perhaps some what low for the draft require or needed,
> > > Good luck from Dido
> > >
> > >
> > >
> > >>
> > >> We've had an oil smell coming through our vents for about a year. Our
> > >> local heating service company has come out twice and found nothing.
> > >> Neither the smoke detectors nor the carbon monoxide detector protest
> > >> and we haven't had any apparent health effets. Yesterday I realized
> > >> that the smell only comes through only after the temperature exceeds
> > >> the setting on the thermostat and contines for a while until the fan
> > >> stops blowing. I don't know if it works this way but I'm guessing that
> > >> the fan keeps going for a little while after the flame is out. If so,
> > >> that seems to be when the oil smell occurs.
> > >>
> > >> I would appreciate your advice/thoughts.
> > >>
> > >
> >
> >
> > --
> > 'Humankind cannot bear very much
> > reality.' - T.S. Eliot
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