by Mark Hansberger on December 29, 2016January 26, 2017 Still Using an Older Furnace? Brush Up on Pilot Light Safety Today’s energy-efficient propane and natural gas furnaces rely on an electronic igniter to start the furnace. Before electronic ignition became widespread, the vast majority of furnaces used pilot lights to ignite the furnace burner. If […]Read More Filed Under: Furnaces Tagged With: broken pilot light– furnace– furnace pilot light– heating system– pilot light