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Example 1:
For our shortest venting configuration use components A and F
(see Figure 9a).
Figure 9a. Typical Top Vent installation. If the 90° elbow is installed
directly on the fireplace, the height to the center of the
termination is 44".
f i r e - p a r t s . c o m
Horizontal Venting
MEXT Section
Figure 9b. Typical Top Vent installation. The solid sections can be
used in various combinations to obtain the desired vent
run. The vent run must fall within the limits set by the
venting graph.
Example 2:
A 10' section and elbow (MIHR-10) used in conjunction with 3 ft. flex
section (MFL-3) will, when extended in a five foot chase, allow for a
maximum horizontal run of twelve and one-half feet from the centre
of the fireplace to outside wall and a minimum of 8' when retracted
in opposite direction (see Figure 10 and 11).
"D" flex sections and "E" solid sections may be used in conjunction
with one another to obtain different possible horizontal length
installations. NOTE: Flex sections with no vertical rise must not exceed
maximum horizontal length of 3 feet (see Figure 12). Flex runs over 3
feet must fall within the limits set by the venting graph, and must have a
minimum vertical rise of 3" per foot of flex.
Part No. XG0106B
Installation
Termination
Heat Shield
MEL-90F/F Elbow
90° Elbow
Heat Shield
Termination
Top Vent
150" max.
30" max.
Flex Section
Figure 10. Extended Installation using a combination of solid and
flex venting. Use the vent graph to determine your
allowable run, then select appropriate components.
Figure 11. Retracted Installation using a combination of solid and
flex venting. Use the vent graph to determine your
allowable run, then select appropriate components.
Flex Section
Hearth
Figure 12. Horizontal flex installation with no vertical rise.
MD34-DV-2 Homefire
Heat
Shield
Termination
Solid Sections
Exterior
Wall
Hearth
30" Max.
Heat
126"
Shield
Solid Section w/
90° Elbow
Termination
Flex Section
Exterior
Wall
Hearth
3' max.
Heat
Shield
Termination
Exterior
Wall
Page 7
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