Table 1

Factors Describing Air Flow Rate for Gas and Oil-Fueled Vented Home Heating
Equipment Utilizing Indoor Air for Combustion and Draft Control

The above factors were developed by the National Bureau of Standards
and are based upon information in the public literature, laboratory
and computer simulation studies conducted at NBS, and laboratory
and field data obtained by several research firms under contract
to NBS and DOE.

*A power burner may incorporate a device on its air inlet which opens
the air inlet when the appliance is in operation and closes the air
inlet when the appliance is in the standby condition.

TABLE 2-Factors Describing Air Flow Rates for Gas or Oil-Fired Furnaces/Boilers Intended for Installation Out-of-Doors or Intended for Indoor Installation But Equipped With a Direct Vent System

80-181 0-81--12