Cooler temperatures aren't here yet, but it's worth researching ahead of time if you're in need of a furnace upgrade. Fortunately, the market these days is flooded with options. To pick the right one ...

The author’s air-source heat pump resembles an air conditioning unit, and it pictured here alongside one of the heating oil fuel tanks. Photos by Adam D. Bearup The following story covers our recent ...

Dear EarthTalk: Is it true that gas furnaces cost less to run and burn cleaner than their oil counterparts? If I make the switch, how long should I expect it to take for me to pay back my initial ...