A forced hot-water heating system in which sensible and latent heat remaining in flue gases after contact with a primary heat exchanger (9,10) is recycled into incoming cold air by a second heat exchanger (11). The heated, humidified intake air is then directed to a fuel burner (6), and reduces the amount of fuel necessary to achieve a given amount of heat exchange at the primary heat exchanger at normal operating return-water temperatures. <IMAGE>
申请公布号
DE69100187(D1)
申请公布日期
1993.09.02
申请号
DE1991600187
申请日期
1991.02.05
申请人
DUNKIRK RADIATOR CORP., NEW YORK, N.Y., US
发明人
GUYER, ERIC C., DOVER, MASSACHUSETTS 02030, US;GOLLIN, MARTIN K., ST. DAVIDS, PENNSYLVANIA, 19087, US