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New residential water heater concept promises high efficiency, lower cost

August 16, 2016

A team of scientists from the Department of Energy’s Oak Ridge National Laboratory and the University of Florida has developed a novel method that could yield lower-cost, higher-efficiency systems for water heating in residential buildings.

The theory behind the newly termed “semi-open” natural gas-fired design, explained in an ORNL-led paper published in Renewable Energy: An International Journal, reduces the cost and complexity of traditional closed gas-fired systems by streamlining, and even eliminating, certain components.

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