heatmaking

== English == === Etymology === From heat +‎ making. === Noun === heatmaking (uncountable) The generation of heat. 1807, Thomas Frognall Dibdin, Frognall, The Director: A Weekly Literary Journal (page 255) It would appear, from different experiments, that invisible rays exist in the solar beam possessed of chemical powers; but neither of illuminating nor heatmaking agencies. 1974, United States. Congress. Senate. Committee on Commerce, Federal Power Commission Oversight; Natural Gas Curtailment... (page 461) […] natural gas is 3.5 times more efficient for heatmaking purposes.