Generac GP3300i (71532, 49ST) inverter generatorCheck best price → All photos, customer reviews and today's price →
CO shutoff · Gas inverter · 2,500 W

Generac GP3300i (71532, 49ST) review: our full analysis

Brand: Generac · Ranked 173rd of 174 · Our methodology

5.2/10 Power5.3 Runtime4.5 Noise— Features6.3 Portability6.1 Watts per dollar4.6 Dotted line: average of the 174 models. Relative scores based on specs, no hands-on testing. Where to buy Today's best priceTypical price: $800–$1,200 Check best price Affiliate link: As an Amazon Associate we earn from qualifying purchases.
Key takeaways. The Generac GP3300i (71532, 49ST) pairs a 2,500 W running rating with inverter technology for clean power, built for camping, tailgating and small jobs away from an outlet. It weighs 61.0 lb and runs about 4 hr 30 min at half load on a tank. Notable features: a CO shutoff sensor.

Not clearly published by the manufacturer, take with caution: noise level.

Pros

  • 2,500 running watts with PowerRush raising starting capacity to 3,300 W.
  • L5-30R 30 A twist-lock, a 120V 20A duplex and USB ports; parallel ready.
  • COsense CO shutdown and under 3% THD.

Cons

  • 1.06-gallon tank: about 4.5 hours at 50% load.
  • Recoil start only.
  • 49-state version: not for sale in California.

Best for

  • Camping, tailgating and small jobs away from an outlet

Specifications

TypeGas inverter (inverter: clean power)
Running watts2,500 W gasoline
Starting watts3,300 W gasoline
FuelGasoline
Fuel tank1.06 gal
Runtime7 hr at 25% load · 4 hr 30 min at 50% load
NoiseNot published
Weight61.0 lb
Outlets2 × 120 V household outlets (5-20R) · L5-30R 30 A 120 V twist-lock · USB ports
Transfer switch readyNo (no 240 V outlet)
StartRecoil (pull start)
CO shutoff sensorYes
Parallel capableYes
EmissionsEPA compliant
Engine149 cc
Warranty3 years
Generac GP3300i (71532, 49ST)2,500 running W · Gas inverter · typical price $800–$1,200 Check price and availability

Who is it for?

The Generac GP3300i (71532, 49ST) is mostly suited to:

  • Camping, tailgating and small jobs away from an outlet.
1

What will a 3,300-watt generator run?

The Generac GP3300i (71532, 49ST) delivers 2,500 W continuously and up to 3,300 W for a few seconds to start motors. It handles 11 of the 14 loads on our typical list one at a time; add up the running watts of everything you run together, plus the extra starting watts of the biggest motor. As an inverter, it produces clean power suited to laptops, TVs and furnace control boards.

ApplianceRunning / starting wattsWill it run?
Wi-Fi router and modem20 W / 20 W✅ Yes
CPAP (no humidifier)50 W / 50 W✅ Yes
Laptop or TV150 W / 150 W✅ Yes
Full-size refrigerator700 W / 2,200 W✅ Yes
Chest freezer500 W / 1,500 W✅ Yes
Furnace blower (1/2 HP)800 W / 2,350 W✅ Yes
Sump pump (1/2 HP)1,050 W / 2,150 W✅ Yes
Microwave (1,000 W)1,000 W / 1,000 W✅ Yes
Space heater1,500 W / 1,500 W✅ Yes
Window AC (10,000 BTU)1,200 W / 3,600 W❌ No
RV roof AC (13,500 BTU)1,800 W / 2,800 W✅ Yes
Circular saw1,400 W / 2,300 W✅ Yes
Well pump (1 HP, 240 V)1,000 W / 4,000 W❌ Needs 240 V
Central AC (3-ton, soft start)3,800 W / 5,500 W❌ Needs 240 V

Typical figures; check the label of your own appliances. One load at a time: add up everything you run together.

Generac GP3300i (71532, 49ST)2,500 running W · Gas inverter · typical price $800–$1,200 Check best price
2

Runtime and fuel

The fuel tank holds 1.1 gallons of gasoline. The manufacturer quotes 7 hr at a quarter load. At half load, it runs about 4 hr 30 min on a full tank. That is about 0.24 gallon per hour at half load, or 6 gallons for a full day of running, so plan your fuel storage for a multi-day outage.

Fuel tank1.1 galgasoline
At 25% load7 hrmanufacturer figure
At 50% load4 hr 30 minmanufacturer figure
Fuel per day≈ 6 gal24 h at half load
3

Noise level

The manufacturer does not publish a noise figure for this model. Open-frame generators of this size typically run around 70 to 76 dB(A) at 23 feet; our noise score treats a missing figure as below average.

4

Outlets: home, RV and tools

Its panel offers 2 × 120 V household outlets (5-20R), L5-30R 30 A 120 V twist-lock, USB ports. It has no 240 V outlet: it runs plug-in appliances through extension cords, not hardwired circuits or a 240 V well pump. It is parallel capable: linked to a second compatible unit with a parallel kit, the two outputs combine.

5

Safety features and warranty

It starts with a recoil (pull) cord. A CO shutoff sensor stops the engine if carbon monoxide builds up around it; it does not replace distance (20 feet from the house) and CO alarms indoors. It is listed as EPA compliant; check California availability if you live there. The warranty runs 3 years (residential use).

6

Typical price $800–$1,200: good value per watt?

Relative to its running watts, the Generac GP3300i (71532, 49ST) scores 4.6/10 on value: a high price per watt, which its other strengths may justify. Inverters always cost more per watt than open frames: compare it with other inverters. Generator prices on Amazon move a lot, especially before hurricane season: check the current price before you buy.

Generac GP3300i (71532, 49ST)2,500 running W · Gas inverter · typical price $800–$1,200 Check best price

Our verdict on the Generac GP3300i (71532, 49ST)

The Generac GP3300i (71532, 49ST) scores 5.2/10 and ranks 173rd out of 174 generators analyzed. Its strengths: 2,500 running watts with PowerRush raising starting capacity to 3,300 W; L5-30R 30 A twist-lock, a 120V 20A duplex and USB ports; parallel ready. It is best suited to camping, tailgating and small jobs away from an outlet.

Generac GP3300i (71532, 49ST)2,500 running W · Gas inverter · typical price $800–$1,200 Check best price

Featured in our rankings

Best inverter generators119th of 120Best generator for camping60th of 61Best generator with a CO shutoff sensor128th of 129Best parallel capable inverter generator97th of 98Best 3500 watt generator32nd of 32Best generator under $1,000110th of 111Best generator under $1,500141st of 142Generac generators: reviews and lineup comparison8th of 8

Sources

Frequently asked questions

Will the Generac GP3300i (71532, 49ST) run a refrigerator?

Yes: its 2,500 running watts and 3,300 starting watts cover a full-size fridge, including the compressor's startup surge.

Can the Generac GP3300i (71532, 49ST) power a house?

Only plug-in appliances through extension cords: it has no 240 V outlet for a transfer switch.

How long does the Generac GP3300i (71532, 49ST) run on a tank?

About 4 hr 30 min at half load according to the manufacturer, and 7 hr at a quarter load.

Does the Generac GP3300i (71532, 49ST) run on propane?

No, it runs on gasoline only.

Is the Generac GP3300i (71532, 49ST) quiet?

The manufacturer does not publish a noise rating.

Generac GP3300i (71532, 49ST)2,500 running W · Gas inverter · typical price $800–$1,200 Check best price

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