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ENVIRONMENTALLY FRIENDLY wood pellets recycle RENEWABLE HEAT

By Alliance for Green Heat | October 10, 2011

Recently released U.S. Census figures show the number of households heating with wood grew 34 percent between 2000 and 2010, faster than any other heating fuel. Electricity showed the second fastest growth, with a 24 percent increase over the past decade.

In two states, households using wood as a primary heat source more than doubled—Michigan (135 percent) and Connecticut (122 percent). And in six other states, wood heating grew by more than 90 percent—New Hampshire (99 percent), Massachusetts (99 percent), Maine (96 percent), Rhode Island (96 percent), Ohio (95 percent) and Nevada (91 percent).

Census data also shows that low- and middle-income households are much more likely to use wood as a primary heating fuel, making low- and middle-income families growth leaders of the residential renewable energy movement. According to the U.S. Energy Information Administration, residential wood heat accounts for 80 percent of residential renewable energy, solar 15 percent and geothermal 5 percent.
“Heating with wood may not be hip like solar, but it’s proving to be the workhorse of residential renewable energy production,” said John Ackerly, president of the Alliance for Green Heat, a nonprofit organization based in Maryland.

The rise of wood and wood pellets in home heating is driven by the climbing cost of oil, the economic downturn and the movement to use renewable energy. The Census Bureau does not track the reason people switch fuels but in states like Maine and New Hampshire where rising oil prices are squeezing household budgets, it is clear that many families simply feel the need to cut heating costs.

“The rise of wood heat is good news for offsetting fossil fuels, achieving energy independence, creating jobs and helping families affordably heat their homes,” Ackerly  said. “However, wood heat’s rapid rise is not just from people using clean pellet and EPA certified wood stoves. Many people are also dusting off old and inefficient stoves and in some states installing outdoor boilers that create too much smoke.”

Over the past decade, the number of households using two of the most expensive heating fuels significantly declined: propane dropped 16 percent and oil heat dropped 21 percent. Some of those homes undoubtedly switched to wood. Switching from fossil fuels to commercially purchased wood heat can reduce a home’s heating bills by half or more. Those who cut or collect their own wood save much more, using their labor to zero out heating bills.

Currently about 25 percent to 30 percent of the 12 million stoves in the U.S. are clean burning pellet stoves or EPA certified wood stoves, according to the EPA and other sources. Americans have installed about 1 million pellet stoves since the 1980s when they were invented.

Wood now ranks third in the most common heating fuels after gas and electricity for both primary and secondary heating fuel use, but ranks fifth, after oil and propane as well, when only primary heat fuel is considered. As of 2010, 2.1 percent of American homes, or about 2.40 million households, use wood as a primary heat source, up from 1.6 percent in 2000. About 10 percent to 12 percent of American households use wood when secondary heating is counted, according to the Census Bureau and the EIA.

The rapid rise in wood heat as a primary heating fuel is mainly a rural phenomenon, and to a lesser extent a suburban trend. According to the U.S. census, 57 percent of households who primarily heat with wood live in rural areas, 40 percent in suburban areas and only 3 percent in urban areas.

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