BASIC NEC CODE RULES AND DESIGN PRACTICE

1Ø CFM = Volts x Amps x 3.413 1.08 x Temp. Rise * 3Ø CFM = 1.73 x Volts x Amps x 3.413 1.08 x Temp. Rise * * = Difference between return and supply air temperatures. kW actual = kW rated * { Volts (actual) } 2 Volts (rated) NATURAL GAS COMBUSTION: Excess Air = 50%. 15 ft.3 of air to burn 1 ft.3 of methane produces: ................
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