Word: coiling
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Dates: during 1980-1980
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...Robert Jones, 43, a Los Angeles salesman of kitchen exhaust systems. He received $8,000 last year to help finance his idea for using the hot air coming off cooking ranges rather than simply pumping it out the exhaust fan. With the money, he built a prototype "hydro-coil" that gathers the heat in radiator-type fins and recycles it to heat other rooms in the house and the water system. Gas bills dropped 15% to 20% during testing, and Jones has interested a national restaurant chain in his device...