Westinghouse iGen4500 Generator Review: Is It Good?

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This review should make it clear whether the Westinghouse iGen4500 generator is the right choice for your needs and preferences.

Westinghouse iGen4500 review in short

The Westinghouse iGen4500 is our top 4500 watt generator pick for a reason.

If you want 4500 starting watts this is likely the best generator for you.

The Westinghouse iGen4500 performs so well in the relevant areas at such a reasonable price that it is hard to find potential alternatives.

You can find a few of these cases in the list of the best 4500 watt generators but you will likely end up choosing the Westinghouse iGen4500 anyway.


  • Quiet operation
  • Long run time
  • Good generator value for the money
  • Relatively in-depth performance tracking
  • Dual fuel version available
  • Solid warranties


  • Some customers find changing the oil challenging
  • Requires some effort to move around

Some of the best uses for the Westinghouse iGen4500 include:

  • Medium amount of home backup power
  • Camping
  • RV’s
  • Tailgating
  • Small businesses like food trucks
  • Running certain small to medium power tools
  • Construction sites

Westinghouse iGen4500 performance in important categories

The mini review, pros, cons, and uses should make it clear that the Westinghouse iGen4500 is a relatively good generator.

It can also be helpful to look at how this 4500 watt inverter generator performs in different key categories.

Performance CategoryWestinghouse
iGen4500 Score*
Performance CategoryWestinghouse
iGen4500 Score*
Power Capacity7Fuel Efficiency7
Run Time9Ease Of Use8
Quiet Operation10Portability7
THD<3%Price Category$$
Reliability Reputation9Overall Expert Rating9.5
Current PriceCheck Price
Westinghouse iGen4500 performance on a score of 10 compared to other generators*

Individual reviews compare the specific model to portable generators in general and sometimes scores are based on customer input

Westinghouse iGen4500 key features

Figuring out whether the Westinghouse iGen4500 is good enough for your situation and needs can feel overwhelming with all the details.

Luckily, you can get a relatively good idea of what to expect from this generator with a few key specs.

iGen4500 Detail
Fuel TypeGasoline (Dual Fuel
Version Available)
Starting Watts4500 Starting Watts
Running Watts3700 Running Watts
Run Time @25% Load18 Hours
Noise LevelsAs Low As 52 dBA
Outlets(1) 120V 30A TT30R RV Outlet,
(1) Duplex Of 120V 20A 5-20R
Outlets, (2) USB Ports
THDLess Than 3%
Warranty*3 Years Limited Residential
And 1 Year Limited Commercial
Price Category**$$
Check Current Price
Westinghouse iGen4500 key features

*Warranties can vary from seller to seller

**Price category at the time of writing

What will the Westinghouse iGen4500 run?

It is easy to see in reviews that the Westinghouse iGen4500 offers 4500 peak watts, 3700 running watts, 120 volts, and 30 amps.

However, you likely also want to know what this means in terms of the appliances and tools the Westinghouse iGen4500 can actually run.

From a high level view, you can say that this generator can run a nice amount of small to medium devices together or somewhat bigger machines separately.

As an example, a Westinghouse iGen4500 should be able to run a coffee maker, refrigerator, dishwasher, electric drill, and laptop at the same time.

Some of the bigger machines the Westinghouse iGen4500 should be able to run individually are a window air conditioner (15,000 BTU), a table saw, or a 1 HP air compressor.

To be really sure whether the Westinghouse iGen4500 is strong enough for your needs you can follow the steps in the what a 4500 watt generator can run article.

Westinghouse iGen4500 customer reviews insights

Just because a generator looks good on paper does not always mean the brand delivers on its promises.

To make sure there are not too many unexpected problems with the Westinghouse iGen4500, the reviews of the thousands of customers before you can be helpful.

While I did not read every single review, I did find some general trends when digging through a lot of them.

First of all, there are a decent number of reviews that mention changing the oil can be challenging due to the design of the Westinghouse iGen4500.

There also used to be an issue where the iGen4500 choke wire was not always connected but it looks like Westinghouse has resolved this issue (and it should be a relatively easy fix in case it does happen).

A tiny number of customer reviews mention the occasional technical issue or that the generator is not as quiet as they hoped.

These things do need to be noted but at the same time, there are not that many generators that are able to keep this many customers as happy as the Westinghouse iGen4500.

Westinghouse iGen4500 alternatives

As you can see from this review and the top pick spot in the best 4500 watt generators, the Westinghouse iGen4500 is one of the best overall options out there.

At the same time, it is worth briefly mentioning two alternatives.

First, the Champion 200988 4500 DF seems to be just a bit more reliable than the Westinghouse iGen4500 but does require a bigger investment.

If you really have essential appliances, you could consider the Champion 200988 4500 DF for backup power.

Secondly, the WEN 56455i looks like a solid 4500 watt inverter generator at a more budget-friendly price than the Westinghouse iGen4500 but does not have that many customers yet.

You can also check out some of these popular generator comparisons that include the Westinghouse iGen4500:

Is the Westinghouse iGen4500 worth it?

While you do want to check whether you need this much power, the Westinghouse iGen4500 is likely worth it if you are looking for 4500 starting watts.

Even if you only focus on specific categories, it is often hard to find other generators that do a better job than the Westinghouse iGen4500 (although there are examples).

At the same time, this generator still has a very reasonable price.

In short, when it comes to 4500 watt generators, the Westinghouse iGen4500 is basically the best option out there.

Other Westinghouse iGen4500 specs

While I should have covered most of the important details in this review, you may also want to know about certain other Westinghouse iGen4500 specs in the table below.

You can also check out the Westinghouse iGen4500 user manual to get more information in case you need to find replace parts, a battery replace, oil changes, break-in guidelines, and more.

iGen4500 Detail
Dual Fuel Version
Voltage120 Volts
Fuel Tank Capacity3.4 Gallons
Fuel Efficiency
(kWh Per Gallon)
Outlet CoversYes
Engine Displacement224cc
Recoil Pull StartYes
Electric StartYes
Low Oil ShutdownYes
Fully Enclosed DesignYes
AC Frequency60 Hz
Remote StartOptional
Digital Smart LCD
Hour MeterYes
Fuel GaugeYes
Wattage MeterYes
Run Time RemainingYes
Engine Type4 Stroke
Generator Operation
Parallel ReadyYes
Country Of OriginNot Mentioned
Dimensions24.5″ L x 17.5″ W x 20″ H
Weight104.7 lbs (47.5 kg)
Check Current Price
Other Westinghouse iGen4500 specs

Westinghouse iGen4500 FAQ

How long will a Westinghouse iGen4500 run?

A Westinghouse iGen4500 will run about 18 hours at 25% load on a full tank of gas.

How much oil does a Westinghouse iGen4500 take?

The Westinghouse iGen4500 has an oil capacity of 20.29 fluid ounces which is about 0.6 liters.

How loud is a Westinghouse iGen4500?

A Westinghouse iGen4500 is rated for “as low as 52 dBA” loud but it is not clear at what distance or load this is measured.

What engine is in the Westinghouse iGen4500?

There is a 224cc OHV 4 Stroke engine in the Westinghouse iGen4500.

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Mats is the founder and head editor of Generator Decision. With a combination of critical thinking, tireless research, and a healthy interest in electronics he helps people find the right generators and how to use these. At this point in the journey, Mats has done research on hundreds of portable generators.