http://www.residentialhotwaterheaters.com/does-water-heater-btu-rating-include-the-efficiency-of-the-heater/ Thu, 18 Nov 2010 04:24:21 +0000 hourly 1 http://wordpress.org/?v=3.0 http://www.residentialhotwaterheaters.com/does-water-heater-btu-rating-include-the-efficiency-of-the-heater/comment-page-1/#comment-113 ffemt6347 Thu, 08 Jul 2010 03:00:09 +0000 http://www.residentialhotwaterheaters.com/does-water-heater-btu-rating-include-the-efficiency-of-the-heater/#comment-113 These two items are completely separate. Efficiency is the useful power output versus the total power consumed, and a BTU is the amount of heat required to raise the temperature of one pound of water one degree Fahrenheit. The BTU is what you are actually concerned with for this particular question, the efficiency is related to the power consumption and not the actual heat output. Hope this makes sense. These two items are completely separate. Efficiency is the useful power output versus the total power consumed, and a BTU is the amount of heat required to raise the temperature of one pound of water one degree Fahrenheit. The BTU is what you are actually concerned with for this particular question, the efficiency is related to the power consumption and not the actual heat output. Hope this makes sense.

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