Reznor UDX175 409 Stainless Steel Power Vented Gas Unit Heater 115V 1, 2 Stage Gas Valve Factory Installed btu8600 Size Gas Type Description AV12PCN decorative media Size Gas Type Description AV12PCN 12” Natural Gas Polished Chrome Valve Kit AV12PCP 12” Liquid Propane Polished Chrome Valve Kit AV12PBN 12” Natural Gas Polished Brass Valve Kit AV12PBP 12” Liquid Propane Polished Brass Valve Kit AV17PCN 17” Natural Gas Polished Chrome Valve Kit AV17PCP 17” Liquid Propane Polished Chrome Valve Kit AV17PBN 17” Natural Gas Polished Brass Valve Kit AV17PBP 17” Liquid Propane Polished Brass Valve Kit This media will give you the variety you've been searching for 000 BTU H Output Heating Capacity 145 Hinged access door for easier service