Option 3: Side Wall Venting Positive Pressure; Lengths Up To100 Feet Maximum); Category Iv Figure 7(Vent/Air Pipe Equivalent Lengths Up To100 Feet Maximum) - RBI FUTERA XLF Series Installation And Operation Instructions Manual

OPTION 3: SIDE WALL VENTING
POSITIVE PRESSURE —CATEGORY IV
FIGURE 7
(VENT/AIR PIPE EQUIVALENT LENGTHS UP TO 100 FEET MAXIMUM)
In this configuration the boiler/water heater blower is used
to push the flue products horizontally to the outdoors, see
Figure 7. The air for combustion is taken from the space
in which the unit is installed. Th e applicable instructions under the
Figure 7 VENT OPTION 3: SIDE WALL VENT — Side wall venting
Vent pipe and air pipe equivalent lengths must not exceed 100 feet each.
F F Finned copper tube gas boilers & water heaters – Boiler Manual F d b b l
"Combustion Air & Ventilation" section must be followed! Th e vent
guidelines under the Horizontal Direct Vent Systems section must
also be followed.
& h B l M
To ensure proper boiler operation, boilers that use
room air must not be fi red at less than 33% input.
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