35,000 BTU/Hour Vented Natural Gas Gravity Wall Furnace with PilotPro Battery-Ignition Pilot SystemThe Gravity Wall Furnace with PilotPro comes with all of the quality and reliable features of Cozy's Gravity Wall Furnace, now with all the benefits of PilotPro, the gas heating industry's first battery ignition pilot system. With the inclusion of Cozy's innovative, patent pending PilotPro technology, the pilot light is lit only when needed, increasing the furnace's energy efficiency by as much as 2%. This also leads to an average cost savings of $75