Multiple Heaters and Multiple Inducer Fan Models
Heating Units may be stacked for
parallel application.
Individual units must have separate
drain lines from the flue box to the
indoors.
Exhaust vent drains may be joined to
a common condensate drain header
(3/4” diameter).
Once condensate drain lines are
indoors, a common condensate drain
header (1” diameter) may be used to
combine all drain lines only after
each drain line is trapped.