York S1-9951-0861 Gas Orifice 000 PSI depending on conditions

000 PSI depending on conditions

using this genuine S1-9951-1611 gas orifice maintains the appliance's original efficiency ratings and flame stability

blocked return vents

Test with a multimeter against the manufacturer's resistance-temperature chart

York S1-9951-0861 Gas Orifice 000 PSI depending on conditionsThe York S1 9951 0861 #44 Gas Orifice is a high precision LP gas conversion component engineered specifically for York heating systems. This OEM replacement orifice features a #44 drill size with a 0. 0860 inch diameter, precisely calibrated to regulate liquid propane flow at 11. 0 inches Water Column (W. C.). Designed for robust performance in multi stage gas furnaces and boilers, this part ensures stoichiometric combustion to prevent soot buildup