Natural gas is one of the most economical sources of energy for home heating. That’s why, according to the Natural Gas Supply Association’s naturalgas.org, 62 million homes (56 percent of the U.S.

The concept of the “high-efficiency furnace” in popular consciousness dates back to the 1980s. That’s when the National Appliance Energy Conservation Act of 1987 required all new furnaces be 78 ...

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 ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Lou Manfredini joins Lisa Dent in his weekly ...

Natural gas furnaces are the most economical home heating devices — cheaper to operate than electric furnaces or baseboard heaters, heat pumps, geothermal or biomass. But energy use still can vary.