Electrically-operated vent dampers and thermal vent dampers with electrical connections shall only be installed on ... the vent damper manufacturer show the device to be compatible with the appliance. if a wiring or interconnection diagram is not ... operated. gas-fired. hot-air (forced or gravity) furnaces and low-pressure. hot water boilers equipped with draft hoods. ... varying building heights. in these situations. wind currents directed at the top of the chimney may cause downdrafts atanbsp;...
|Title||:||S. 2224, Small Business Energy Loan Program|
|Author||:||United States. Congress. Senate. Select Committee on Small Business|