All ActivityMost RecentMost LikesSolutionsRe: replacement gas pilot line and thermocouple Do you or anyone know the size or where to get the pilot orifice? Cant seem to find the part number or one that says the OD rather than the orifice hole size. Backstory: Have the same furnace as the one picture, but when took apart no pilot orifice. Heater runs, pilot stays lit but two inch flames come out the exhaust. I think previous owner increased the gas pressure to keep the pilot lit with no orifice and its over burning when running?