Unused rooms can be kept closed off during the day when they aren't being used to help reduce the amount of heat lost due to air infiltration from outside temperatures or between connected rooms; this will enable all heated air to stay within one room instead of traveling throughout your home unnecessarily wasting energy and money spent on heating bills each month.

Delayed ignition occurs when your furnace burners don't light immediately when your thermostat calls for heat. This leads to increased wear on your furnace, reduced efficiency, and safety hazards relating to the build-up of unburned gas in your unit, which can ignite suddenly and cause significant damage to your home.