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 1,031-1,040 of 1,804 reviews
Jan 22, 2022
Reviewer name: JGM
5 out of 5 stars
5 out of 5 stars review

Great generator for the price

Bought a generac 4000exl in 2007 and had a great user experience with it. This unit still runs great and is a generator I will never sell . I decided to buy the gp 3600 for backup ( two daughters have houses now) and was pleased with the build quality. Thanks Generac

Review from generac.com
Helpful?5QX50PEVBRFY13572122433
Mar 6, 2014
Reviewer name: C300man
4 out of 5 stars
4 out of 5 stars review

Satisfied so far

We have all our permanent electrical work complete (wiring, lockout, receptacle, etc.) and are ready for an extended outage. Recent -30F temps and some local power outages got me concerned since all my heat sources need some electrical energy. Of course I hope to never have to use the generator. The unit looks good to me and the setup was simple. I'm debating whether to fuel and start the unit knowing I then should run it once a month to avoid fuel problems.

Review from generac.com
Helpful?5QX50PEVBRFY13572122433
Nov 11, 2012
Reviewer name: Goodlife501
5 out of 5 stars
5 out of 5 stars review

Worth the price

This generator is worth it's weight in gold. I live in New Jersey and I was hit hard by hurricane sandy. I was without power for ten days. I bought this generator and it powered my whole house and my neighbors house during the black out. I would highly recommend this product. The set up was easy and also the operation of this product. It also has a nice big gas tank for less fill ups and last up to 12 hours on one tank. All my neighbors want one.

Review from generac.com
Helpful?5QX50PEVBRFY13572122433
Jun 24, 2019
Reviewer name: PLS53
5 out of 5 stars
5 out of 5 stars review

Great Product, lives up to its reputation.

I have used Generac products for years during my career. In all cases my experience was positive. Recently becoming victim to a severe storm at my lake house, I found myself needing back up power. I went online to several retailers and found Generac at a somewhat near store. I purchased the unit and can say it performed as expected, zero issues. Assembly was simple, start up effortless. Ran without issue until power restored.

Review from generac.com
Helpful?5QX50PEVBRFY13572122433
Oct 12, 2019
Reviewer name: Titus1956
5 out of 5 stars
5 out of 5 stars review

This generator is NOT 120/240 volt

I am satisfied with this generator however if I had researched I would have bought a different unit. (The GP3300 is 120/240 volt and can be installed via a transfer panel). Only because after I bought it did I found out it is 120 volt only. My plan was to plug it into the dryer outlet and power up the circuit breakers in the main panel I only needed. BUT I learned this method is very DANGEROUS and you cannot connect it via a transfer panel. You can send your generated electricity to your neighbors home and potentially a lineman working on the power lines. Be aware of the liability. I hired an electrician to install panel on the outside of the house and manufacture a cable to connect it to the generator, he said this is legal and the right way. I tried it out and voila! I am able to power the exact breakers I wanted in my plan. I have lights where I wanted them and a 6000 BTU air conditioner. As far as I know this will not and cannot power anything 220 volt. The noise level is less than I thought it would be, but it's not quiet, it does not have that ear piercing high pitch rattling. The noise does not come from the exhaust as I thought, you don't hear the exhaust you hear the generator motor I guess. It's not too heavy, and with the wheels it moves anywhere. It tucks nicely in the garage under a 24" deep table. To sum it up: I like and will keep it because it does exactly what I wanted in the beginning. It's not too heavy and it's small enough to conceal in the garage when stored not like the large units.

Review from generac.com
Helpful?5QX50PEVBRFY13572122433
Dec 23, 2016
Reviewer name: Boointhewoods
5 out of 5 stars
5 out of 5 stars review

Can’t depend on OGE anymore….

OGE is having major issues of late on our grid. Past Sunday the weather got to -4 …. windchill -15. My electric went off for over 5 hrs and I ended up replacing the pipes in the well house due to everything freezing up. I researched and decided to purchase this Generac 7500. Very glad I did. We’ve another major storm brewing this upcoming weekend and I wanted to be ready. I can’t depend on OGE anymore and having an alternative power back up gives me the feeling of control and power over my situation. Instead of being a victim of OGE.

Review from generac.com
Helpful?5QX50PEVBRFY13572122433
Nov 23, 2014
Reviewer name: Scott
5 out of 5 stars
5 out of 5 stars review

Everything you will need

I bought this in the fall of 2012 after Katrina ripped through the Northeast. Our area was ten days without power being restored. We suffered through three days without power before getting this. Our home water supply comes from a well. No power, no water. Or heat, or showers, or communications. This unit has enough power to run the well, satellite, refrigerators, freezers, lights, coffee pot, microwave, televisions, and the list goes on. I just pulled it outside and started it up again for the second time this year. It powered up on the second pull and was running strong. I never worry about losing power now. Get the biggest one you can afford, but the 6500 will get you through any power outage with minimal disruption to your life. No regrets on this purchase. Quality machine.

Review from generac.com
Helpful?5QX50PEVBRFY13572122433
Apr 27, 2025
Reviewer name: momneedsmoremakeup_4773
5 out of 5 stars
5 out of 5 stars review

Generac GP6500E TF Generator – Our Honest Experien

[This review was collected as part of a promotion.] We were fortunate to be selected as part of a Generac campaign and were given the opportunity to try out the Generac GP6500E TF generator. After putting it to the test, we can confidently say: this generator is absolutely outstanding! Watch my video you can hear the noise level. For such a large generator it’s not loud, loud! Compared to our old (small, little dude) DuroStar generator, the difference is incredible. See my side by side comparison of the two generators. The old one was unable to power our whole home. Mainly had it to keep the fridge on and perhaps a lamp. As you can see from the photos, the Generac is much more compact, yet it delivers so much more power and efficiency. It’s designed to handle major loads — from running a huge RV to keeping an entire home powered. In fact, we’re currently in the process of wiring our home to connect it directly, so during the next round of severe North Texas thunderstorms or tornado-related outages, we’ll be fully prepared. What truly impressed us: • Tri-Fuel Capability: The GP6500E TF runs on natural gas (NG), liquid propane (LP), or gasoline, giving us incredible flexibility depending on what resources are available during an emergency. Need different ways to be able to source power! • Reliable Startup: It starts up easily and quickly every time, which is critical when you’re dealing with unexpected power outages. As you can see just the push of a button. • Quality and Efficiency: Generac has a stellar reputation, and after experiencing this machine firsthand, we understand why. It’s thoughtfully engineered, highly efficient, and feels durable enough to last for years. • Easy Assembly: We had it fully set up in about 15 minutes. The instructions were clear, and we also watched a couple of their setup videos on YouTube, which were incredibly helpful. • Peace of Mind: With a young child at home, having dependable backup power isn’t just convenient — it’s essential. This generator gives us the confidence that we’ll stay powered and safe, even when the grid goes down. Our close friends down the road are gonna get one now! They came over and checked it out. They have kids too. So having power is important for them as well. Our power grids out here and very unreliable. One night all it took was someone hitting one pole in our town to knock out all the subdivisions power. Even though we didn’t purchase this unit ourselves, we would absolutely invest in Generac products in the future based on this experience. The GP6500E TF has exceeded our expectations in every way. We can now rest easy knowing that no matter how bad the weather gets, we’ll have the power we need to stay comfortable and safe. Love the solar options they have on their website! We’re campers so definitely gonna get one of those. I need to crockpot it in the forest!! Thank you, Generac, for selecting us to be part of this campaign and for delivering such an incredible, reliable product!

Review from generac.com
Helpful?5QX50PEVBRFY13572122433
Jan 11, 2014
Reviewer name: genew84
5 out of 5 stars
5 out of 5 stars review

Generac Stood Out against the others

After going few days without power we decided to start shopping for a generator. I looked at many different types, makes and models. Generac stood out in the reviews I read in terms of function and reliability. I found the information available on the Generac website helpful in determining what type and size generator to purchase. Should I need service there are many authorized service representatives in my area. This too has been a discriminator in choosing Generac over some of the other brands. Assembly instructions were clear and the quick start instructions are an excellent idea. It took no time at all to assemble and start the generator. I choose to buy a portable rather than stand-by so that I can have power to do remote construction projects. I'm happy with my choice so far. I'll follow up later after I've had an opportunity to exercise the unit.

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

Good value

The generator owners up our whole with the exception of the AC. Fuel consumption is very reasonable. The wheels and handle Asm make moving the Gen.around easy. Easy to start and operate. Intuitive controls. My only complaint is the absolutely annoying resonance noise from the fuel tank. The tank itself has rubber bushings but with a steel sleeve on the ID. Effectively nullifying any dampening of the rubber itself. A very cordial talk with an authorized Generac repair shop didn’t solve the issue. The shop was aware of the noise but couldn't offer a remedy that was any better than my piece of carpet with a brick on top. We both laughed about it but really, Generac should have done a better job.

Review from generac.com
Helpful?5QX50PEVBRFY13572122433