With 2,100 starting watts and 1,700 running watts, this Firman gas inverter generator boasts a whisper series muffler that keeps it running at a quiet 54 decibels — well below the standards set by the National Park Service. It’s equipped with Eco mode to vary the engine speed and power output based on the load needed to maximize fuel efficiency, plus a built-in parallel kit allowing it to combine power with any of Firman’s inverter generators. It includes a 0.9-gallon tank and runs up to 9 hours. Weighs less than 54lb.