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11 PIPING OF BOILER TO SYSTEM
Check all applicable local heating, plumbing and building safety codes before proceeding.
Be sure to provide unions and gate valves at inlet and outlet to boiler so that it can be easily isolated for
service.
This boiler is of a low mass design, which provides for instant heat transfer. Special attention to water low
rates will ensure that temperature rise does not exceed 35°F (19.4°C). The following Table is provided as
a guide.
For application in areas known to have hard water conditions, contact factory for recommendations.
Table 5: Flow and Pressure Drop at a Given Temperature Rise
Head Loss and Flow Vs Temperature Rise
10 °F 20 °F 30 °F
Model
USGPM
∆P ft. USGPM
∆P ft. USGPM
∆P ft.
60 10.2 0.03 5.1 0.01 3.4 0.005
100 17.0 0.07 8.5 0.02 5.7 0.010
150 25.5 0.20 12.8 0.04 8.5 0.030
200 34.0 0.40 17.0 0.08 11.3 0.050
250 42.5 0.65 21.3 0.16 14.2 0.100
300 51.0 1.50 25.5 0.49 17.0 0.190
400 68.0 2.00 34.0 0.55 22.7 0.260
500 85.0 3.00 42.5 0.76 28.3 0.390
600 102.0 4.30 51.0 1.15 34.0 0.550
Figure 5: Typical Boiler Piping to System
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