The efficiency of these two types of systems depends on two factors that can vary significantly: the efficiency of the combustion process and the efficiency of the power plant generating electricity. However, efficient w... More »

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As of 2015, Sunbeam offers three types of electric heaters that use electricity efficiently but are not as cheap to run as gas and oil heating units. Their small size and easy operation, however, might make them a viable... More »

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Electrical boilers are typically more efficient at converting fuel into heat than other designs, although their overall efficiency depends on the power source. The cost of using an electrical boiler varies depending on t... More »

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The energy efficiency of a steam baseboard heater depends primarily on whether it is powered by an efficient central boiler system, with systems using modern boilers having far higher efficiency than those using older mo... More »

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Most electric heaters are capable of turning electricity into heat efficiency, but they generally cost more than gas- and oil-powered devices to run. Power plants, most of which are fueled by coal and natural gas, lose e... More »

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As a fuel, corn typically provides an annual fuel utilization efficiency (AFUE) rating of 60 to 80 percent, placing it somewhat below natural gas and heating oil, which typically rate between 70 and 95 percent. However, ... More »

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General Electric furnaces are unlikely to meet energy efficiency standards in effect as of 2015. GE's climate control division was purchased by furnace manufacturer Trane in 1982, so any GE furnaces still in use are like... More »

www.reference.com Home & Garden Heating & Cooling