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NOTE: Any piping used to connect the generator to the fuel supply should be of adequate size to ensure the fuel pressure NEVER drops below 4 inches water colum for natural gas or 10 inches water column for liquid propane for all load ranges. 1.8 FUEL CONSUMPTION *Natura{ gas is in cubic feet per hour. **LP is in gatlons per hour/cubic feet per hour. **_ Values given are approximate Model # Nat. Gas (*) LP Vapor (**) 1/2 Load FullLoad 1/2 Load Full Load 6/7 kW 66 119 O.82/30 1.47/54 12 kW 152 215