Head to head

Generac GP3300i vs Generac iQ3500

Generac GP3300i

Generac · Inverter Generator

Generac GP3300i

~$599

2,500 W / 3,300 W surge · up to fridge, freezer and the essentials

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Generac iQ3500

Generac · Inverter Generator

Generac iQ3500

~$1,249

3,000 W / 3,500 W surge · up to fridge, freezer and the essentials

Check price on Amazon

Quick takeThe Generac GP3300i lists about $650 lower; the Generac iQ3500 puts out more sustained power (3,000 W).

SpecGenerac GP3300iGenerac iQ3500
Approx. price~$599~$1,249
TypeInverter GeneratorInverter Generator
FuelGasolineGasoline
Running / output watts2,500 W3,000 W
Starting / surge watts3,300 W3,500 W
Battery capacity——
Expandable to——
Noise—52 dB
Runtime4.5 hrs @ 50% load, 7 hrs @ 25% (1.06 gal)8.9 hrs @ 50% load, 14.1 hrs @ 25% (2.6 gal)
Outlets2x 120V 20A (5-20R), 2x USB, parallel ports1x 120V 30A (L5-30R), 2x 120V 20A (5-20R), 2x USB
Fuel tank1.06 gal2.6 gal
Weight60 lbs109 lbs
Transfer-switch readyNoNo
Warranty3-year limited3-year limited

Highlighted cell is the better figure for that row.

Owner pros and cons

Generac GP3300i

  • +700 more running watts than an EU2200i at half the cost
  • +PowerRush handles motor-start surges above its class
  • +60 lbs with a decent carry handle
  • +USB ports and parallel capability built in
  • +COsense CO shutdown standard
  • −No published noise spec to compare against Honda/WEN rivals
  • −Small 1-gallon tank means frequent refills
  • −No 30A RV outlet

Generac iQ3500

  • +As quiet as anything in the 3,000W class, Honda included
  • +Electric start and idiot-proof PowerDial controls
  • +Data display shows load, fuel, and time remaining
  • +Starts 13.5k BTU RV air conditioners
  • +14-hour quarter-load runtime
  • −109 lbs with no wheels, so owners add a wheel kit
  • −Carb needs religious fuel treatment before storage
  • −Past recall history on early units shadows the model
  • −No 240V output
  • −Parallel kit is proprietary and pricey