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Article
Publication date: 1 February 1973
INDIRECT or secondary heating systems are systems in which a primary source of heat—fuel oil, gas or electricity—is used to heat a fluid that transfers heat to the point of…
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Abstract
INDIRECT or secondary heating systems are systems in which a primary source of heat—fuel oil, gas or electricity—is used to heat a fluid that transfers heat to the point of application, where a second heat transfer takes place.
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