Referenced by|
| US4251025 | 12 Jul 1979 | 17 Feb 1981 | Honeywell Inc. | Furnace control using induced draft blower and exhaust stack flow rate sensing | | US5993195 | 27 Mar 1998 | 30 Nov 1999 | Carrier Corporation | Combustion air regulating apparatus for use with induced draft furnaces |
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