20
18-CD19D8-18
Installer’s Guide
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TYPE 29-4C STAINLESS STEEL VENTING –
USED THROUGH CHIMNEY THAT VENTS
ANOTHER GAS APPLIANCE
PVC PLASTIC VENTING – ONLY
THROUGH UNUSED CHIMNEY
SUPPORT THE SINGLE
WALL FLUE PIPE AND
CENTER IT IN THE
CHIMNEY OPENING WITH
ANGLES AS SHOWN OR
ANOTHER EQUIVALENT
MANNER.
NOTE:
HORIZONTAL VENTING
TO VERTICAL VENTING
6 IN. MIN.
STAINLESS
STEEL
VENT CAP
SEE CAUTION
FLUE PIPE
COUPLING
AS REQUIRED
FLUE PIPE
COUPLING TO SUPPORT
PIPE FROM ANGLES
OR OTHER SUITABLE
SUPPORT METHOD
SUPPORT THE SINGLE WALL
STAINLESS STEEL GAS
VENTING AND CENTER IT IN
THE CHIMNEY OPENING WITH
ANGLES AS SHOWN OR
ANOTHER EQUIVALENT
MANNER.
NOTE:
HORIZONTAL VENTING
TO VERTICAL VENTING
6 IN. MIN.
SEE CAUTION
STAINLESS
STEEL
VENT CAP
STAINLESS STEEL
VENT CAP
(OPTIONAL)
STAINLESS STEEL
VENT CAP
(OPTIONAL)
,
▲
CAUTION
!
Do not run vent through chimney for wood burning or
oil furnaces or incinerators or any other gas appliance.
IMPORTANT –
The single wall flue pipe joints must be sealed.
The 90° elbow connection to vertical pipe must be sealed to
prevent condensate leakage to base of masonry chimney.
▲
CAUTION
!
Do not run vent through chimney for wood burning or oil
furnaces or incinerators.
If remaining free area between single wall flue pipe and
masonry chimney is to be used for another gas appliance
venting area must be sufficient to vent that appliance and
that appliance must be connected to chimney with
separate entry openings.
IMPORTANT
–
The single wall flue pipe joints must be sealed.
The 90° elbow connection to vertical pipe must be sealed to
prevent condensate leakage to base of masonry chimney.
VENTING ROUTED THROUGH A MASONRY CHIMNEY
VENTING THROUGH THE ROOF
When penetrating roof with a 2" PVC vent pipe, a 2" electrical
conduit flashing may be used for a weather tight seal.
Lubricate flexible seal on flashing before PVC pipe is pushed
through the seal. (Field Supplied)
NOTE:
No vent cap as shown in Figure 34 is the preferred method
for vertical vent termination in extremely cold climates.
In extreme climate conditions, insulate the exposed pipe
above the roof line with Armaflex type insulation.
VENT FITTING MATERIAL – STAINLESS STEEL
Gas and liquid tight single wall metal vent fitting, designed
for resistance to corrosive flue condensate such as Type
29-4C MUST be used throughout.
These fittings and fitting accessories are to be supplied
locally.
DIRECTION OF STAINLESS STEEL FITTING
All stainless steel fitting must be installed with male end
towards the furnace.
All horizontal stainless steel sections must be positioned
with the seam on top.
All long horizontal sections must be supported to prevent
sagging.
All pipe joints must be fastened and sealed to prevent escape
of combustion products into the building.
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