Month Archives: March 2014

Energy Efficiency

Propane vs. Geothermal

Most propane furnaces have efficiency ratings around 90 to 95 percent.  The remaining 10 percent escapes through the flue during combustion.  Geothermal heat pumps are often measured using a coefficient of performance – a ratio of heat produced to energy consumed to produce it.  The coefficient of performance is multiplied by 100 to determine the efficiency rating.  Geothermal heat pumps often offer efficiency levels of 300 to 600 percent!  Ratings above 100 percent indicate the system is creating more energy …
Air Conditioning

Doug's is proud to be a York® dealer

Before York®  began making ice machines in 1874, ice had to be shipped from the Great Lakes. The company in York, Pennsylvania, expanded their expertise in refrigeration into other products. In 1914, York installed in the Empire Theater in Montgomery, Alabama, a revolutionary comfort system called “air washing,” which eventually became known as air conditioning. In 1924, York® equipment was used to create the world’s first air-conditioned office building in Fresno, California. Today, York® products are heating and cooling some …
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