PeerlessBoilers PF-50 - Exhaust Vent;Air Intake Pipe Sizing; Exhaust Vent;Air Intake Pipe Installation

7. Vertical Venting Configuration:
a. Figure 3.7 shows the approved venting
configuration for vertical venting using the
standard fittings supplied.
b. Locate the air intake pipe inlet 12" above the
expected snow accumulation on the roof surface
or 24" above the roof surface, whichever is greater.
c. Locate the end of the exhaust vent pipe a minimum
of 12" above the inlet to the air intake pipe.
d. Figure 3.8 shows an approved vertical vent
configuration using the optional concentric vent
termination kit.
8. Exhaust Vent Pipe Location – Vertical Venting:
a. Figures 3.5 and 3.6 show approved venting
configurations for vertical venting using the
standard fittings supplied.
b. Locate the end of the Exhaust Vent pipe a
minimum of 12" above the air inlet pipe.
D. EXHAUST VENT/AIR INTAKE PIPE SIZING
1. PUREFIRE boiler models PF-50, PF-80, PF-110 and PF-
140 are to be installed using 3" Schedule 40 or 80
PVC or CPVC piping using the provided vent adapter.
2. A concentric polypropylene vent system can be
installed using the optional MUGROTM vent adapter
(54155). Contact your PB Heat, LLC representative
for more information on this option.
3. The total combined length of exhaust vent and air
intake piping is 200 equivalent feet (60 m).
a. The equivalent length of elbows, tees and other
fittings are listed in Table 3.2.
b. The equivalent length can be calculated as follows.
This is well below the 200 feet maximum
equivalent length. If the total is above 200
equivalent feet, alternate boiler locations or
exhaust penetration location should be considered.
E. EXHAUST VENT/AIR INTAKE PIPE
INSTALLATION
1. Figure 12.1 shows the 3" exhaust connection at the
center of the boiler.
2. The Air Intake connection is to the right of the exhaust.
8
VENTING & AIR INLET PIPING
Exhaust Air Inlet Total
Straight Length of Pipe 50' 50'
100'
90° Elbows, SR 2 x 5'= 10' 1 x 5' = 5'
15'
45° Elbows, SR 2 x 3' = 6'
6'
Conc. Vent Termination 1 x 3' = 3'
3'
Total
124'
Table 3.3: Sample Equivalent Length Calculation
Fitting Description Equivalent Length
Elbow, 90° Short Radius 5 feet
Elbow, 90° Long Radius 4 feet
Elbow, 45° Short Radius 3 feet
Coupling 0 feet
Air Intake Tee 0 feet
Stainless Steel Vent Kit 1 foot
Concentric Vent Kit 3 feet
Table 3.2: Equivalent Length of Fittings
Figure 3.7
Figure 3.8