Head to head
Generac GP3300i vs Generac iQ3500

Generac · Inverter Generator
Generac GP3300i
~$599
2,500 W / 3,300 W surge · up to fridge, freezer and the essentials

Generac · Inverter Generator
Generac iQ3500
~$1,249
3,000 W / 3,500 W surge · up to fridge, freezer and the essentials
Quick takeThe Generac GP3300i lists about $650 lower; the Generac iQ3500 puts out more sustained power (3,000 W).
| Spec | Generac GP3300i | Generac iQ3500 |
|---|---|---|
| Approx. price | ~$599 | ~$1,249 |
| Type | Inverter Generator | Inverter Generator |
| Fuel | Gasoline | Gasoline |
| Running / output watts | 2,500 W | 3,000 W |
| Starting / surge watts | 3,300 W | 3,500 W |
| Battery capacity | — | — |
| Expandable to | — | — |
| Noise | — | 52 dB |
| Runtime | 4.5 hrs @ 50% load, 7 hrs @ 25% (1.06 gal) | 8.9 hrs @ 50% load, 14.1 hrs @ 25% (2.6 gal) |
| Outlets | 2x 120V 20A (5-20R), 2x USB, parallel ports | 1x 120V 30A (L5-30R), 2x 120V 20A (5-20R), 2x USB |
| Fuel tank | 1.06 gal | 2.6 gal |
| Weight | 60 lbs | 109 lbs |
| Transfer-switch ready | No | No |
| Warranty | 3-year limited | 3-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