On Mon, 08 Jan 2007 20:23:58 GMT, Speedy Jim wrote:

Joe wrote:

I tried to replace the tank gauge.


SNIP

I would not mess with any tank fittings,
including the gage port,if it won't come out easily.

This may sound a bit extreme, but I would wire
a clock (old time one with hands that go 'round :-)
directly to the burner motor.
This will let you keep a total of the burner
running time and, knowing the nozzle size,
the total consumption in gallons.

My 27 year old Carrier has the proper nozzle size listed on a spec
plate just inside the cover. Almost every guy who serviced the
furnace used the listed size (but one guy didn't. I wish I'd paid more
attention.)

You may not have to pull the burner out to
find the nozzle size. See if there is an old nozzle
laying about or repair slip which gives it.

Jim