"Bob" wrote in message
. ..
You can't vent the oil furnace you have with PVC. You need to use either a
Field or Tjernlund 'power venter'. There are specific guidelines for their
placement, and the wiring can be complicated for a novice. You can use
standard galvanized smoke pipe going to the power venter, but they are
just
another mechanical component that can break over time. If you have an
existing chimney, get it repaired or replaced. A chimney liner or a
complete
new double-walled chimney for an oil furnace must be stainless steel.

Bob beat me to it (Damn! You must read this group 24 hours a day! ;-] )

Just wanted to add a couple links:

http://www.fieldcontrols.com/rpt.swg.html

http://www.tjernlund.com/oilsidewall.htm