FIGURE 11A: Drawing Inlet Air From Attic
Hard pipe, flange, flex pipe
and two clamps all included
in Air Intake Kit, F111756.
FIGURE 11B: Drawing Inlet Air From Side Wall
Burner Box
Back View
Always use a section of 4" ex to connect the burner box
to the PVC/Sewer pipe used to go through the sidewall.
Keep this section at a minimal length and free from kinks.
DO NOT connect hard rigid pipe directly to burner box.
MAKE SURE INLET CAP IS NOT
BLOCKED BY INSULATION
Burner Box
Rear View
For horizontal runs longer than 25' it
is recomended to use 6" ID PVC in order
to ensure adequate supply air to heater.
Enerco | Heatstar AG Series Heater
12" (31 cm) MIN. FROM
INSIDE OF ROOF
INLET TUBE MUST BE 12" (31cm)
MIN. ABOVE INSULATION
CEILING
SUPPORT BOARD
FLANGE
Flex tube section used to
attach burner box to hard
pipe going through ceiling.
Cut to necessary length to
avoid sagging or kinks.
Provide adequate weight-bearing
supports to hang the hard pipe from
the ceiling.
E-15
Operating Instructions and Owner's Manual
Cut 4 1/4" in./10.8 cm
hole in through support board
and ceiling adjacent to joist.
Spread insulation away and
fasten cieling flange to board/joist.