Skip to Main Content
Sam's Club
Sam's Club
All Departments
All Services
Customer reviews for 10,000/8,000- Watt Generac Gas-Powered Portable Generator With CO Sensor + Electric Start / 25ft Extension Cord for
10,000/8,000- Watt Generac Gas-Powered Portable Generator With CO Sensor + Electric Start / 25ft Extension Cord
4.6 out of 5 stars
stars
1,862 ratings1,804 reviews
  1. 5 stars78% (1,454)
  2. 4 stars14% (269)
  3. 3 stars3% (48)
  4. 2 stars1% (24)
  5. 1 star4% (67)
Sort by |
Showing 341-350 of 1,804 reviews
Jul 5, 2015
Reviewer name: JMV
5 out of 5 stars
5 out of 5 stars review

No Doubts, money well invested

I am very satisfied with my purchase of my GP6500E generator. It was money well invested. The quality and performance of this Generac generator is great. The installation and startup directions were very easy to follow for someone like me that is not to keen on the mechanics of putting something together. The motor is not too noisy at all, we can barely hear that our generator is on at all when working. I will definitely recommend this product to all my family. I am getting ready to purchase a Generac Home Standby Generator in the next few months.

Review from generac.com
Helpful?5QX50PEVBRFY13572122433
Oct 17, 2017
Reviewer name: Josh
4 out of 5 stars
4 out of 5 stars review

Keeping our home livable post Maria!!!

Live in San Juan, Puerto Rico. Bought the unit 1 and a half years ago, but have been using it daily since Irma and Maria hit. I don't have transfer switch installed, so i am using cables going out of the generator straight to the equipment i am using. Powering four refrigerators, two of which are for neighbors, also two fans, two tvs with DVD player and washing machine, even wife has been able to blow dry her hair!!!! Situation is complicated by the destruction of the hurricanes, but this machine and its reliable performance is keeping me sane!!!! I can get upwards of 12 plus hours on a full tank. Easy maintenance and although it makes noise, it is reliable, powerful and great value. Would definitely recommend.

Review from generac.com
Helpful?5QX50PEVBRFY13572122433
Dec 11, 2016
Reviewer name: Sdt7120
5 out of 5 stars
5 out of 5 stars review

Excellent Product. Just what we expected.

We ordered this after Hurricane Matthew and being without power for 5 days. We went with the larger model based on price and recommendations. We are happy and quite pleased with our purchase. We highly recommend Generac! We are comfortable and assurance knowing we will now be better prepared.

Review from generac.com
Helpful?5QX50PEVBRFY13572122433
Nov 28, 2013
Reviewer name: Bill
5 out of 5 stars
5 out of 5 stars review

Home Backup

I just had the generator wired to my house and the electrician and I ran a test. It ran everything in the house. It won't run the heat pump or furnace, but that's o.k., it will keep us from going to a hotel and the contents of the refrigerator /freezer won't go bad.

Review from generac.com
Helpful?5QX50PEVBRFY13572122433
Sep 13, 2015
Reviewer name: Rocketman
5 out of 5 stars
5 out of 5 stars review

Excellent Generator

The power to my house has been pretty reliable up until this year. We have has three outages for extended periods of time so far this year. I have a well and a freezer full of beef, so I bought this generator to power my house during these outages. The power has not gone out since I bought it, but it does run all my appliances and the well pump without any problems when I tested it. It is worth having the insurance of stand-by power when it is needed.

Review from generac.com
Helpful?5QX50PEVBRFY13572122433
Mar 5, 2012
Reviewer name: Sean D
4 out of 5 stars
4 out of 5 stars review

Does the job

Have had the generator for a few weeks but held off running it until I had a manual transfer switch installed. That happened this week and so the time came to test the switch and the generator. As this was a first run the carb and tank were dry. In went the quart of oil, about a gallon of gas, I pressed the (electric) start button and it fired up without a hitch. I then flipped the well pump, furnace, fridge, a couple of lights and a chest freezer over and no-one in the house even noticed, and the generator wasn't even close to capacity. I hope I never need to use the unit in anger, but I'm happy that if we loose power, we will at least have the basics.

Review from generac.com
Helpful?5QX50PEVBRFY13572122433
Jan 29, 2021
Reviewer name: Butch
5 out of 5 stars
5 out of 5 stars review

It saved the day

I purchased my RS 8000E for back up power in April of 2020 and had an electrician hook up a box to my breaker box so i have power to the entire house. In October we lost power for about 5.5 hours due to heavy snow and transformers were blowing out all over the area. We had just sat down for dinner with our three daughters and there boyfriends, needless to say we were the only home with power that I know of in more than a 2 mile radius. The generator worked great. I feel if you need it, it will pays for itself after just a few uses. I would highly recommend this generator.

Review from generac.com
Helpful?5QX50PEVBRFY13572122433
Sep 15, 2018
Reviewer name: dmoakl
1 out of 5 stars
1 out of 5 stars review

Got it for hurricanes... doesn't work

Bought generator 2 years ago which worked on startup. I drained the gas tank and confidently awaited a time for its use. I am in NC with Hurricane Florence and brought out the generator. After filling the gas tank, checking the oil, charging the battery..... nothing. Will not crank by hand or battery. What a disappointment when it is needed most.

Review from generac.com
Helpful?5QX50PEVBRFY13572122433
Apr 18, 2025
Reviewer name: Andrewfl
2 out of 5 stars
2 out of 5 stars review

POOR WARRANTY AND PRODUCT

I bought this generator just under a year ago. We were expecting power outages up to several weeks. Glad that we weren't effected. The reason for my 2 stars is the Generator is supposed to have a great warranty. Buyer beware, after putting the generator together and trying to start it the generator failed to start. I called to have someone to come out to check the generator and was told that I had to bring it to a place. So a generator that weights over 100lbs with a full 7 gal tank of fuel they expected me to transport over 25 miles to have it serviced. I would NEVER buy another product from this company.

Review from generac.com
Helpful?5QX50PEVBRFY13572122433
Feb 26, 2021
Reviewer name: KaylCrennada
4 out of 5 stars
4 out of 5 stars review

Solid unit

strong runner, love that it runs diesel. fuel tank is large enough to keep it running for a VERY long time, especially at lighter loads. my only gripe is the pullstart. i would be willing to bet that Paul Bunyan himself would not be able to pull start this generator. Make sure the battery is charged.

Review from generac.com
Helpful?5QX50PEVBRFY13572122433