25
FIGURE 24
TWO FURNACE VENTING THROUGH ROOF
FIGURE 25
TWO FURNACE VENTING THROUGH WALL
8. Painted surfaces must be sound
and in good condition with no
cracking, peeling, etc. Painted
surfaces will require
maintenance.
9. Do not expose 3" x 2" reducer/
bushing to outdoor ambient
temperatures.
MULTIVENTING
IF VENTING TWO OR MORE
FURNACES NEAR EACH OTHER IS
REQUIRED, EACH FURNACE
MUST BE INDIVIDUALLY VENTED
– NO COMMON VENTING IS
PERMITTED. See Figures 24 and 25
for positioning of the terminations.
When more than two furnaces are to
be vented, there must be at least 4
feet between the first two furnaces
and the third, etc.
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