From the Farmer’s Almanac comes this comparison of wood heat, natural gas, pellet stoves, heating oil furnaces, propane wall furnaces and anthracite coal burners.

“Fossil fuels have a polluting reputation of spewing unburned particulates into the air,” according to the Almanac article. “In some parts of the country, there are stringent regulations on the type of stoves you can use, as well as when you can burn, which is problematic if you depend on it as a primary heat source.”

However, these traditional fuel sources have been improved with higher efficiency rates and air quality advancements. Click here to read the full story.