Boilers

A New Generation of Boilers Is Super Efficient

Boilers burn gas, oil, or wood in a chamber surrounded by water

Heat and hot water, too

Hot-water boilers can burn a variety of fuels, including #2 fuel oil, natural gas, propane, and biomassOrganic waste that can be converted to usable forms of energy such as heat or electricity, or crops grown specifically for that purpose. such as wood or compressed wood pellets. But they aren't popular in the United States: hot-water heating systems accounted for about 2% of all heating systems installed in new houses in 2007, according to the U.S. Census Bureau.

Unlike hot-air furnaces, boilers can’t be used for air conditioning or humidification, and boilers are typically ...