Skip to Main Content
Sam's Club
Sam's Club
All Departments
All Services
Customer reviews for Westinghouse 3,700/4,500-Watt Dual-Fuel Inverter Generator (CARB Compliant) for
Westinghouse 3,700/4,500-Watt Dual-Fuel Inverter Generator (CARB Compliant)
4.8 out of 5 stars
stars
9,506 ratings9,486 reviews
  1. 5 stars80% (7,651)
  2. 4 stars17% (1,580)
  3. 3 stars2% (152)
  4. 2 stars1% (56)
  5. 1 star1% (67)

Member photos

  • +607 images
Sort by |
Showing 341-350 of 9,486 reviews
Feb 7, 2025
Reviewer name: scrrph1982
5 out of 5 stars
5 out of 5 stars review

westinghouse iGen11000DFc

Bought this a few days ago and am very happy with features and support from Westinghouse.I had a few questions before and after the purchase. All concerns were addressed within the same day and to my satisfaction. I started the generator on propane , have not tried gasoline as of yet,but all went flawless. I believe I made a good purchase and I spent many hours on research.

Review from westinghouse.com
Helpful?1X9ZG67VOAGW15258307712
Apr 19, 2025
Reviewer name: Gen100
5 out of 5 stars
5 out of 5 stars review

Easy Setup, quiet

Took about an hour to set, mainly because I had to remove some of the oil before starting it up. The oil you get is 1.1L which is the same oil capacity listed in the specifications. However, using the dipstick, it appears you should only put just a tad more than a liter in the crack case otherwise oil will flow out of cap. Started up on the first try and is very quiet when running with little to no load. This was a big concern of mine when thinking about purchasing a generator as the house next store is only 25 feet away. Very happy with ease of set up and operation.

Review from westinghouse.com
Helpful?1X9ZG67VOAGW15258307712
Apr 16, 2025
Reviewer name: JimReese
2 out of 5 stars
2 out of 5 stars review

A serious design flaw

I bought this generator to support my “off grid” cabin!. It started and ran well right out of the box , It has a battery start and optional “pull start” . The battery switch must be turned off anytime the generator is not running as the monitor will kill the battery.. The problem is the pull start will not start the generator if the battery is dead ! defeating the purpose of the pull start .. I was told this is unique to “duel fuel” units as the battery controls a fuel valve . Also the battery must be “on” for “auto start” to work, but will go dead in 24 hours.. defeating the purpose of auto start !! I will have to provide for an external battery charger to somehow keep the battery charged when the generator is in “standby” !! This Flaw really impairs the reliability of this unit as an auto start power supply backup! This can be easily be fixed with a “manual “ fuel valve and delete the lighted display!

Review from westinghouse.com
Helpful?1X9ZG67VOAGW15258307712
reply from eComm

Hello, thank you for letting us know about this, we are genuinely sorry to hear about it. I have passed your feedback along to our quality control team to ensure that we are producing the best units possible. Please contact us at 1-855-944-3571 or support@wpowereq.com and we will do our best to make things right for you. Thank you, Cam - Westinghouse

Apr 23, 2025
Reviewer name: Anonymous
5 out of 5 stars
5 out of 5 stars review

Powerhouse!

I purchased this generator to replace an older smaller one. The size is quite a bit larger but not the sound! It is noticeably louder but for the amount of power added I don't mind. This generator will play multiple roles for me, used for bowfishing and running all of my equipment, to power our camper whenever we boondock, or back up power supply for my house if the power goes out. Being dual fuel makes it nice. I plan to run nothing but ethanol free gas but if we are without power for an extended time I have multiple large propane tanks! No more freezing when the power goes out!

Review from westinghouse.com
Helpful?1X9ZG67VOAGW15258307712
Feb 1, 2025
Reviewer name: Dirk73
5 out of 5 stars
5 out of 5 stars review

Good value

Based on older reviews, earlier iterations of the iGen4000/4500 seem to have had issues with the cable connecting the choke to the back of the control panel shaking loose during transport as well as the oil fill hole being very difficult to access behind the blue plastic casing. I didn't have a problem with the cable being disconnected and they've redesigned the access on the iGen4000 making oil changes a breeze. First, the side panels can be popped off without requiring a screw driver and the oil fill hole is unobstructed. It now has a little spout and dish for catching small spills and the generator comes with a flexible funnel that screws directly into the oil fill hole. Filling and draining are no longer such a mess. I bought this generator in large part because of the dual fuel option and have so far only tried running it on propane. It started up easily using the instructions in the user manual, powers what I need it to, it's not too loud, not too heavy for one person to manage, and it's really easy to maneuver with the wheels. All in all I'm satisfied with my choice and would recommend the generator.

Review from westinghouse.com
Helpful?1X9ZG67VOAGW15258307712
Apr 22, 2025
Reviewer name: Ryan Foodtruck
5 out of 5 stars
5 out of 5 stars review

Runs my all Electric Food Truck

After some challenges figuring out the wattage to run our all electric food truck. we turned in 2 other generators and can run everything on our food truck at one time with this inverter. It also is quite quiet compared to a traditional generator even running everything.

Review from westinghouse.com
Helpful?1X9ZG67VOAGW15258307712
Mar 7, 2025
Reviewer name: StanB58
5 out of 5 stars
5 out of 5 stars review

Portable emergency generator

I bought this for emergency power for my house with the added bonus of portable power for my welder or camping trailer. The electrician was finishing the transfer switch panel when it arrived and I had the generator prepped and plugged in when he was finished. It fired right up and will power anything in my house just not all at once. The electrician and I were both impressed with how quite it was. I like the dual fuel feature as the propane will not go stale like gas. My wife appreciates the remote start.

Review from westinghouse.com
Helpful?1X9ZG67VOAGW15258307712
Mar 28, 2025
Reviewer name: PoweredUpAndHappy
5 out of 5 stars
5 out of 5 stars review

High output inverter with great features

This high output portable generator/inverter was just what I needed to set up a whole house backup power system for a 100 amp service panel with an automatic transfer switch. The total cost was one third the quoted price of a big name whole house system. The big name system also required an expensive service contract to validate their extended warranty coverage. The iGen came delivered on a pallet in a very sturdy box with absolutely no damage. The unpacking and setup documentation was first rate and very accurately matched the unit which made it easy to follow. Everything you need for setup is included, the hardware was of very good quality, and even the wrenches and oil were included. After adding fuel, the unit started and ran with no issues. All displays and switches worked flawlessly and were easy to understand. The unit is quieter with a light load than I suspected it would be, which is a pleasant surprise. Thank you Westinghouse for building a quality product.

Review from westinghouse.com
Helpful?1X9ZG67VOAGW15258307712
Apr 13, 2025
Reviewer name: Red1982
5 out of 5 stars
5 out of 5 stars review

Great product.

I purchased this to replace a conventional generator I owned that was used to run my whole house minus air conditioner during the frequent power outages we are having. The new generator being an inverter is working better with my sensitive electronics and has had no issue running everything in my house. I would strongly recommend this product to anyone who has sensitive electronics that they would like to run off of a generator.

Review from westinghouse.com
Helpful?1X9ZG67VOAGW15258307712
Apr 17, 2025
Reviewer name: Pmich
3 out of 5 stars
3 out of 5 stars review

Can't wait!!

Just purchased my new igen4000dfc and looking forward for some off-the-grid camping. After much research, I purchased this based on the favorable reviews, reputation and features. But mainly because it's fairly light weight compared to most other ginnys in its class.

Review from westinghouse.com
Helpful?1X9ZG67VOAGW15258307712
reply from eComm

Hello, thank you for your initial review! We look forward to hearing your thoughts once you have had a chance to fully utilize the iGen4000DFc! If there is anything we can do to help, please let us know at 1-855-944-3571 or support@wpowereq.com. Thank you, Cam - Westinghouse