Roberts Gorden 125 - Manual (Page 24)

UHD L OW P ROFILE D UCT F URNACE I NSTALLATION O PERATION AND S ERVICE M ANUAL
16 of 47
Figure 10: Standard Vented Heater - Common Vertical Vent Termination
Requirements:
• Maximum of four heaters can be commonly
vented through the roof.
• Heaters must be of the same BTU output.
• Heaters must be controlled by a common
thermostat.
• Connections to a common stack must be
positioned to avoid direct opposition between
streams of combustion gases.