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Energy Efficiency Ratings

Oil Furnaces

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A furnace's energy efficiency performance over a heating season is called the Seasonal Energy Utilization Efficiency (SEUE). This SEUE is expressed as a percentage. The higher the percentage, the more efficient the furnace. For furnaces with no standing pilot light, the SEUE is equivalent to the Annual Fuel Utilization Efficiency (AFUE).

ENERGY STAR qualified furnaces have an AFUE of 90 percent or more. To improve electrical efficiency, choose one with a high-efficiency circulating fan motor.

Many factors affect your home-heating needs, so have a heating-load calculation performed to properly size your furnace (heating capacity). Also consider an EnerGuide for Houses evaluation to discover how to reduce your heating needs.

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 Date modified: 2006-01-16Back to topImportant notices