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INSTALLATION OF SWG POWER VENTER (See Table 1)
Table 1
UNIT SIZING CHART
OIL GAS
MAXIMUM EQUIVALENT FEET OF VENT
PIPE
MAX*
OIL GPH
INPUT
MAX**
BTU/HR.
IMPUT
AT MAX BTU/HR
INPUT
AT 60% OF MAX
BTU/HR INPUT
VENTING WITH
VENT PIPE SIZE
MODEL
21 80 3”
50 100 4”
N/A 70,000
--- --- ---
SWG-3
--- 23 3”
35 100 4”
1.10 170,000
65 100 5”
SWGII-4HD
SWG-4s
16 44 4”
51 100 5”
1.85 290,000
95 100 6”
SWGII-5
SWG-5s
28 78 5’”
68 100 6”
2.65 416,000
100 100 7”
SWGII-6
SWG-6s
28 78 6”
61 100 7”
3.60 566,000
90 100 8”
SWG-7
26 72 7”
51 100 8”
4.75 740,000
70 100 9”
SWG-8
*Rating at 100 psi. Sizing based on appliance maximum input rate not actual firing rate. **Do not exceed maximum BTU/HR input rating or maximum oil
GPH input. For multiple venting system applications, add the input for each appliance. Category I gas-fired draft induced systems require an SWGII-4HD
or larger. Category III gas-fired draft induced systems require an SWGII-5 or larger.