I believe the measurements were done in pascals (pa) and not inches of water column (inwc), not completely sure about this though. So I believe the conversion would be...
Breech Draft would be negative 0.056
Overfire Draft would be negative 0.032
Sorry I am just starting to learn about my oil furnance (first time as a homeowner)
Here are some other measurements from the report sheet if that helps..**** Stack 522, CO2 10.9, O2 6.5, Smoke 0, Efficiency 82.2%, CO Reading 39, Fuel Pump 100 psi, Safety timing 45 sec, and water half in.
Just to give you an idea about the oil furnace it is a York (1988), forced air with Beckett.
Thanks again for all your help. I am pretty sure I need the barometric damper, I am just looking for some other opinions as well.