US F-15 Fighter Jets Takeoff from Frozen Air Base at Full Afterburners Fox News poll spells bad news for Donald Trump's "Big, ...

A natural gas furnace works by igniting natural gas inside of your furnace's burner. The flames heat up a metal heat exchanger, which in turns heats incoming cold air received from your home's ...

All high-efficiency condensing gas furnaces have the unique feature of two heat exchangers — a primary and secondary — whereas the mid-efficiency furnace only has one. The primary heat exchanger is ...

It seems like a waste of gas to keep it going all summer ... the summer had to do with condensation formation inside the furnace's burner compartment. Many basements are damp in the summer ...

And also these burners, they're more expensive ... it's more likely that consumers will burn gas in their furnace, their water heater or clothes dryer. CHANG: Exactly. OK. Well, the reason ...

Once the furnace is powered with natural gas, it uses a pilot light or electrical ignition to start a burner that burns the fuel and activates heat exchangers to transfer heat. A fan then blows ...

Plant operators have used combustion flue gas analysis for decades as a method of optimizing boiler combustion fuel/air ratios. By measuring the amount of excess oxygen and/or carbon monoxide (CO ...