3,600 running watts, 4,650 peak watts (gasoline); 3,240 running watts, 4,180 peak watts (propane). Dual fuel operation easily switches from gas to propane without shutting off unit. Runs for up to 14 hours on a 4 gallon fuel tank with built-in fuel gauge; up to 10.5 hours on a 20 lbs propane tank.
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