IHP Lennox 80K23 SIT-820 NOVA Mv Split-system Millivolt Controlled Natural Gas valve for use in direct vent Fireplaces, Stoves and Gas Log Sets with a fixed rate burner...NOTE.... NOTE.... Gas Valves that have been installed or used in any way cannot be returned for refunds. Minimum voltage 145mV Coil resistance 2.25±0.5... Thermo-Electric Unit Hold-in current less than 285Ma Drop-out current... Greater than 125mA with coil resistance 0.018± 0.003... Gas type Natural Gas Fixed Manual Pressure set-point 3.5” w.c. ± 0.3... Thermocouple connection 11/32 ASA-DNC... Natural Gas Inlet 3/8 in NPT... Natural Gas Outlet 3/8 in. NPT... Maximum natural gas inlet pressure 1/2 PSIG Ambient operating temperature 32° to 175° F Maximum @ 1 in. w.c. pressure drop 100,000 BTU per hour... Regulation capacity 5,000 to 195,000 BTU AP per hour.... NOTE.... NOTE.... Gas Valves that have been installed or used in any way cannot be returned for refunds.