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Customer reviews for GP8000E Watt Generator CO-Sense with Transfer Switch Outlet for Home Backup for
GP8000E Watt Generator CO-Sense with Transfer Switch Outlet for Home Backup
4.6 out of 5 stars
stars
589 ratings589 reviews
  1. 5 stars77% (454)
  2. 4 stars15% (87)
  3. 3 stars2% (12)
  4. 2 stars2% (10)
  5. 1 star4% (26)
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Showing 321-330 of 589 reviews
Aug 20, 2014
Reviewer name: Gus
5 out of 5 stars
5 out of 5 stars review

It exceeds my expectations

I have given this generator a 5 star rating based on my experience with it so far, and so far I haven't needed to use it for the reason it was purchased; to supply emergency power during electrical outages. That having been said, I am impressed with what I have seen so far. The unit arrived in perfect condition, and assembly was easy. I was concerned by the advertised weight at first, but the carton was easily handled by two people, and after assembly, it is easy to move from storage to the driveway where it will be used. The battery was charged when it arrived, and it started right up and ran steadily for about 15 minutes. I had minor difficulty adding the engine oil, in that I had to hunt around for a long necked funnel to use to pour the oil into the unit, no big deal. And, the instructions indicate that you should check the oil level as oil is being added, so as not to overfill the unit. I did this, only to read later that the recommended oil capacity is 1 quart, and exactly one quart of oil was supplied. It would have saved me a few minutes if the instructions said "Pour the 1 quart of enclosed oil into the oil fill plug". Also, no big deal. Finally, it would be nice to have a compartment or something on the unit to hold the battery charger. I solved that problem with a bag attached to the frame with zip ties. If this is all I can find to complain about, I would say that I'm pretty satisfied. I trust that this unit will perform as well when the need arises as it has so far.

Review from generac.com
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Apr 27, 2025
Reviewer name: MMMM
2 out of 5 stars
2 out of 5 stars review

Not the quality produced I expected

I purchased my Generac generator right after the hurricane and initially it worked fine. After a day or so the 120V electrical panel started malfunctioning - the Ground Fault breaker kept tripping under load. Then it wouldn't reset at all. I had to source a four prong plug from Illinois to use the other electrical panel and that took days to get here. So, I had to go purchase a second generator - not a Generac. After normal household power returned, I took the Generac to a repair shop where it sat for four months waiting on parts. Overall, I don't think I would recommend a Generac to anyone. Poor quality and even worse warranty service. Now I have an $800 paper weight.

Review from generac.com
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Feb 11, 2013
Reviewer name: Mike
5 out of 5 stars
5 out of 5 stars review

Very good product - easy to setup and use

I compared several different generators and chose a GP6500E - which I am very happy with! The intial setup took under 30 minutes, and it started right up. The durability and ease of use seem very good, and the electric start option was well worth the money. I would highly recommend this product.

Review from generac.com
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Jan 5, 2018
Reviewer name: mjr24
5 out of 5 stars
5 out of 5 stars review

Reliable And Dependable

Purchased this generator due to a prolonged power outage in the Northeast in October. Didn't want that to happen again, especially during the cold winter months. Setup and startup were a breeze, and the generator fired up on the first pull. The piece of mind knowing I will have back up power for our furnace and essential appliances is worth the cost paid.

Review from generac.com
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Sep 26, 2017
Reviewer name: iceman
5 out of 5 stars
5 out of 5 stars review

this product has great features

i highly recommend everybody having a generac generator as an emergency backup after going through hurricane irma and having no power for 8 days and we lost all of our perishable food in deep freeze and refrigerator because we did not get generator until after the storm but so glad i ordered it because of the unbearable heat in florida and we were able to run window ac's and well to take showers very satisfied.

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Dec 12, 2024
Reviewer name: Victor Pitboss
5 out of 5 stars
5 out of 5 stars review

Outstanding Performance

I bought 3 years ago and used it this past 3 days straight with no issues. I ran 3 refrigerators, all the lights in the house, garage door openers, electric heater, coffee pot, and toaster over. Really impressed with the power output. Plus the tank is fairly big, and last a long time once topped off. Only con is that it is really loud.

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Dec 24, 2013
Reviewer name: Jim
5 out of 5 stars
5 out of 5 stars review

Excellent quality, design and reliability

I don't write many reviews but we are in an ice storm power outage. I dusted off my Generac 6500 XL which I purchased in 1999. It started right up and is running my entire house - well pump, furnace, frig, and lights including Christmas lights. . It is 17 degrees out. This generator is great. It starts first or second pull every time. It will be hard to find a replacement to match this one if it every wears out. Happy generating.

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Jun 6, 2025
Reviewer name: herishaa_7948
5 out of 5 stars
5 out of 5 stars review

Easy to use and not loud.

[This review was collected as part of a promotion.] We had a storm electric was out for 28 hours. I have a smaller generator already but this one much bigger allowed me to hook up much needed appliances and other electric items. Easy to transport because on wheels not heavy or bulky at all. Easy to store. I can even work this without a problem. Quick start and not as loud as the one I had already. Also when we go camping it’s great to have with us. So easy to travel with.

Review from generac.com
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Apr 20, 2015
Reviewer name: Reltng
5 out of 5 stars
5 out of 5 stars review

Generac is #1

Gererac was my first choice, spent a lot of dark days before I purchased the GP6500E. Plenty of features, easy setup. I chose this model especially for the Electric Start feature, and the efficient fuel consumption rate. I also matched this generator with the Generac Transfer Switch kit.

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Nov 27, 2018
Reviewer name: Mike
1 out of 5 stars
1 out of 5 stars review

What fuse?

My generator has a 3Amp fuse. Guess what? Generac does not show this fuse on their drawings. They can't tell me what it does nor where it is located on the unit. I had to send them a picture so they knew their own Generator design. One more note. 4 Generac Generators crapped out in my neighborhood during Hurricane Florence. That meant that 4 homes were without power for 7 days. Says a lot for Generac reliability and performance. I'll never make this mistake again.

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