Gas and oil furnaces burn fuel to provide heat for homes, and that presents a basic problem. Every combustion process produces noxious gases. How do you keep those gases from circulating throughout ...

Heat pumps run on electricity and furnaces run on fossil fuels, natural gas, propane, or oil. Our experts say there's no clear answer for which type is more energy efficient. Location plays a major ...

MAPLE GROVE, Minn — Furnace technicians say the colder it gets, the harder our furnaces have to work to keep our homes warm. This is the time when a lot of the smaller issues in your furnace can turn ...