Genkins GK4500iEPRO 4500W Inverter inverter generatorCheck best price → All photos, customer reviews and today's price →
CO shutoff · Gas inverter · 3,800 W

Genkins GK4500iEPRO 4500W Inverter review: our full analysis

Brand: Genkins · Ranked 25th of 174 · Our methodology

7.6/10 Power7.0 Runtime7.0 Noise6.9 Features7.1 Portability9.1 Watts per dollar8.7 Dotted line: average of the 174 models. Relative scores based on specs, no hands-on testing. Where to buy Today's best priceTypical price: $300–$500 Check best price Affiliate link: As an Amazon Associate we earn from qualifying purchases.
Key takeaways. The Genkins GK4500iEPRO 4500W Inverter is a gas inverter generator rated at 3,800 running watts and 4,500 starting watts, built for essential home backup with clean power for electronics. It weighs 62.0 lb, is rated at 63 dB(A) and runs about 8 hr at half load on a tank. Notable features: a CO shutoff sensor, electric start.

Not clearly published by the manufacturer, take with caution: running watts, weight, CO shutoff, outlets, CARB compliance.

Pros

  • 4,500 starting / 3,800 running watts with THD of 3% or less from a 174 cc engine.
  • Electric start, parallel capability, and 63 dB at 23 ft.
  • 62 lb with built-in wheels and handle; 1.9-gallon tank rated for 8 hours at half load.

Cons

  • Outlet types are not detailed.
  • 8 hours at half load from a 1.9-gallon tank.
  • CO sensor appears only in the spec table.

Best for

  • Essential home backup with clean power for electronics

Specifications

TypeGas inverter (inverter: clean power)
Running watts3,800 W gasoline
Starting watts4,500 W gasoline
FuelGasoline
Fuel tank1.9 gal
Runtime8 hr at 50% load
Noise63 dB(A) (manufacturer figure)
Weight62.0 lb
OutletsNot detailed
Transfer switch readyNo (no 240 V outlet)
StartElectric push-button + recoil
CO shutoff sensorYes
Parallel capableYes
EmissionsEPA compliant
Engine174 cc
Warranty2 years
Genkins GK4500iEPRO 4500W Inverter3,800 running W · Gas inverter · typical price $300–$500 Check price and availability

Who is it for?

The Genkins GK4500iEPRO 4500W Inverter is mostly suited to:

  • Essential home backup with clean power for electronics.
1

Power output: running and starting watts

The Genkins GK4500iEPRO 4500W Inverter delivers 3,800 W continuously and up to 4,500 W for a few seconds to start motors. It handles 12 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✅ Yes
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.

Genkins GK4500iEPRO 4500W Inverter3,800 running W · Gas inverter · typical price $300–$500 Check best price
2

Fuel tank and runtime

The fuel tank holds 1.9 gallons of gasoline. At half load, it runs about 8 hr 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 tank1.9 galgasoline
At 50% load8 hrmanufacturer figure
Fuel per day≈ 6 gal24 h at half load
3

63 dB(A): how loud is it?

The manufacturer rates the Genkins GK4500iEPRO 4500W Inverter at 63 dB(A), usually measured at 23 feet (7 m) and a light load. That is about the level of a conversation or a dishwasher: acceptable at a campground.

4

Outlets and home connection

Its panel offers outlets the manufacturer does not detail. 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

Starting, safety and warranty

It has electric push-button start, with a recoil cord as backup. 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 2 years (residential use).

6

Typical price $300–$500: good value per watt?

Relative to its running watts, the Genkins GK4500iEPRO 4500W Inverter scores 8.7/10 on value: a good result. 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.

Genkins GK4500iEPRO 4500W Inverter3,800 running W · Gas inverter · typical price $300–$500 Check best price

Our verdict on the Genkins GK4500iEPRO 4500W Inverter

The Genkins GK4500iEPRO 4500W Inverter scores 7.6/10 and ranks 25th out of 174 generators analyzed. Its strengths: 4,500 starting / 3,800 running watts with THD of 3% or less from a 174 cc engine; electric start, parallel capability, and 63 dB at 23 ft. It is best suited to essential home backup with clean power for electronics.

Genkins GK4500iEPRO 4500W Inverter3,800 running W · Gas inverter · typical price $300–$500 Check best price

Featured in our rankings

Best inverter generators9th of 120Best generator with electric start24th of 92Best generator with a CO shutoff sensor22nd of 129Best parallel capable inverter generator9th of 98Best 4500 watt generator1st of 44Best generator under $5001st of 54Best generator under $1,0009th of 111Best generator under $1,50022nd of 142Genkins generators: reviews and lineup comparison2nd of 4

Sources

Frequently asked questions

Will the Genkins GK4500iEPRO 4500W Inverter run a refrigerator?

Yes: its 3,800 running watts and 4,500 starting watts cover a full-size fridge, including the compressor's startup surge.

Can the Genkins GK4500iEPRO 4500W Inverter power a house?

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

How long does the Genkins GK4500iEPRO 4500W Inverter run on a tank?

About 8 hr at half load according to the manufacturer.

Does the Genkins GK4500iEPRO 4500W Inverter run on propane?

No, it runs on gasoline only.

Is the Genkins GK4500iEPRO 4500W Inverter quiet?

The manufacturer rates it at 63 dB(A), typical of an open-frame generator: not campground-quiet.

Genkins GK4500iEPRO 4500W Inverter3,800 running W · Gas inverter · typical price $300–$500 Check best price

Other Genkins generators

8.2 CO shutoff Genkins GK8000iE 8000W Inverter inverter generator Genkins · Gas inverter Genkins GK8000iE 8000W Inverter 6,500 W 62 dB(A)112 lbCO $500–$800Read the review → 7.3 Best value Genkins GK4500iF Lite 4500W Open Frame Inverter inverter generator Genkins · Gas inverter Genkins GK4500iF Lite 4500W Open Frame Inverter 3,700 W 70 dB(A)56 lb Under $300Read the review → 5.9 Easy to carry Genkins GK2300i 2800W Inverter inverter generator Genkins · Gas inverter Genkins GK2300i 2800W Inverter 2,000 W 40 lb Under $300Read the review →

Same price range, other brands

7.6 Best value WEN GN5600 5600W generator WEN · Gas WEN GN5600 5600W 4,500 W 104 lb $300–$500Read the review → 7.4 CO shutoff A-iPower GXS5000 generator A-iPower · Gas A-iPower GXS5000 4,000 W 68 dB(A)112 lbCO $300–$500Read the review → 7.3 CO shutoff AIVOLT VS4350101 4300W Inverter inverter generator AIVOLT · Gas inverter AIVOLT VS4350101 4300W Inverter 3,450 W 60 dB(A)51 lbCO $300–$500Read the review →