On Jan 23, 4:36*am, micky wrote:
My forced air oil furnace output smells like oil in the bedrooms, but
only before the circulation fan starts!.

And not always then. * *But often when I'm sitting at my desk or lying
in bed, and the furnace starts, *I smell the smell of oil for maybe 5
or 8 seconds. For sure, once the blower starts running, I don't smell
it anymore.

I thought that might mean the heat exchanger had a leak, but as some
instructions directed, I put (3) cloves in the fire box and didn't
smell the cloves anywhere in the house. * Of course this was after the
circ. fan had started running. * Do I need to use more cloves?

Is this a serious problem? * Is it a health hazard to smell the oil?
Am I smelling unburned oil and if so, is there more unburned oil in
the house than normal all the time the furnace runs, that also adds to
the health hazard?

It's not normal and until you know what is causing it, yes it's
a problem that I would take seriously. It could be lots of things.
Have you watched the furnace when it first fires up? Looked
at the draft regulator? Does a puff of smoke come out perhaps?
It could be anything from the furnace to a chimney that is leaking
into the house. I hope you have a CO detector. I'd get it checked
out ASAP. Also, how old is the furnace? With the price of oil
today, if it's an older inefficient one, might be time to consider
replacing it.