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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)
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Showing 491-500 of 1,804 reviews
Aug 10, 2023
Reviewer name: Rae
5 out of 5 stars
5 out of 5 stars review

Generac GP18000EFI

The generator is being used to charge batteries and run a small cottage at the same time. No complaints about weight and size as it's expected. It fired right up and started going to work. The only problem we have encountered is the 30AMP breaker keeps tripping if we run small window air conditioners (5AMP) or anything at 1,500 watts=12.5AMPs for a brief 5 min. The offgrid includes four banks of 48V AGM batteries. We set the Magnum inverter down to 80% and AMPs down to 38. This seems to be helping but we can't put a larger load on. So we installing a 50AMP plug on the house with a cut off and bipass, essentially we will be running the 30AMP plug to charge the batteries and the 50AMP to run the house. Typical charge on those batteries is around 4 hours. If you plug an appliance at 12.5 AMPs direct to the generator - there's no difference in load sound. As a building contractor we designed our own off grid system and will be writing a book with as much detail as possible.

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

I bought this and it last half of the plug in receptacle immediately now it becomes my problem to transport to nearest licensed facility in apopka fl Why can i get a pick up of this massiive machine you should have all my product and home location

Review from generac.com
Helpful?5QX50PEVBRFY13572122433
Dec 12, 2020
Reviewer name: hp0t47
5 out of 5 stars
5 out of 5 stars review

This generator is very easy to set up

My generator is model 7996 HL 6500 E. Wheel kit, handle assembly was very easy. After connecting a battery, generator started immediately. This was also highly praised by local authorized service dealer. I hope that it will perform during power outage.

Review from generac.com
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Dec 30, 2018
Reviewer name: Agg
5 out of 5 stars
5 out of 5 stars review

Very Pleased With My Generator

I just had it recently set up but have not used it yet due to no power outage. I really love the electric start which makes it so easy for me to start it up. It gives me the peace of mind to know I have something reliable when power finally does go out.

Review from generac.com
Helpful?5QX50PEVBRFY13572122433
Jul 28, 2017
Reviewer name: Bill
5 out of 5 stars
5 out of 5 stars review

Very high quality produce with lots of features

This unit is a very high quality product. You will be impressed right out of the box before you finish the simple assembly. Lots of features. Reminds you when maintenance needs performed. I especially like the four outlet cord that comes with it. This cord allows you to use both legs of the 240 volts instead of just one side. This gives you the ability to use the full rared output of the generator not just 1/2. The receptacles on the control panel also allow for this same usage. the automatic throttle control saves fuel as I usually do not need 8000 watts of power when dry camping with my RV. I just retired from 47 years in factory skilled trades maintenance and I am a skilled trades instructor at a local 2 year college and I am very impressed with this generator.

Review from generac.com
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May 21, 2015
Reviewer name: Tony
5 out of 5 stars
5 out of 5 stars review

Best purchase I ever made !!!

Straight off the skid, gas and oil added and my Generac fired on the first pull. Even my gf has no problem firing it up. We're doing major alterations on a cabin and use the generator at least 4 days per week. Surprising how long it runs on a tank of fuel. I ckeck it several times daily and swear somebody is sneaking gas into the tank. It's a bit noisy, but outside where that doesn't matter. Before retirement, I'd been in construction but never had the opportunity to use a generac. Those boys don't know what they're missing. I'm completely satisfied, and have already boasted about my great choice. When the work is complete, my Generac will be set up for back-up power. I feel secure knowing it can be counted on in a pinch !!!

Review from generac.com
Helpful?5QX50PEVBRFY13572122433
Feb 26, 2013
Reviewer name: Chris
5 out of 5 stars
5 out of 5 stars review

Quick Start, solidly built

I live in the Northeast corridor and have decided this wacky weather is no fun w/o electricity. Purchased the GP6500E w/ manual transfer kit. Assembly was easy. Started right up w/ the electric ignition. Contracted a local electrician to install the transfer box. Straight forward and no surprises, other than needing a 60 amp main breaker. Electrician commented on the box and said the set-up was pretty slick. Prepared and waiting for Mother Natures next haymaker.

Review from generac.com
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Sep 2, 2020
Reviewer name: RACER
5 out of 5 stars
5 out of 5 stars review

Well built machine

We bought our 76861 to replace our 20yr. old Coleman Powermate which still runs well.This machine will let us run more necessary things, like our well pump and furnace, and with the transfer switch, not have to dance over extension cords.I got 4 different wheels and tires for it, so now it is simple and easy to move over our yard, and in and out of the garage, looks like an open wheel modified from 1970.It started on the first pull after I put a couple of gallons of VP110 in the tank.It will only get 110 or VP SEF to eat, as you can leave it in the machine with no problems.I hooked it up to the house today, and it never seemed to notice the load.It is heavy, strong, and well made.It is well worth my money and I am very happy., with it and the 6853 transfer switch.

Review from generac.com
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Feb 3, 2021
Reviewer name: BP
4 out of 5 stars
4 out of 5 stars review

Big enough for the job.

Shaky start with this machine. Dead battery out of the box and loose contacts in the outlets. Wheels adequate for concrete, but wish they were larger and fatter for moving through gravel. Starts easily. Noise is at 73 DB as stated. Factory Service center took care of the battery problem, but wasn't concerned about loose contacts in outlets. Duh. Sometimes no juice comes out of the 110v side. Have to fiddle with the plugs to make contact. Had a short power failure after purchasing and debugging the generator. Decided to wait for daylight before hooking up generator, but by then power was back on. Because of the garage door design, I will make a shed for the generator's outside storage next to the 220V receptacle. Secondary purpose for the generator is to power the community well in our plat, if needed; hence the need for wider tires when moving the generator through the gravel to the pump house. I think the generator is worth the cost, but am sorry the Factory quality control was sloppy. I wish the factory would actually run the machine and completely test it prior to shipping. A little odor in the gas tank at the store is a small price to pay for enhanced reliability. Nice to have features: a battery feedback circuit, and an output meter advising how much wattage is being drawn by the system being supported by the generator. Best advice I can offer to a buyer is buy the generator in June or July. I didn't get around to purchasing my generator until winter, and there was no selection available in two Counties. This machine was literally the only generator of this class available. I went looking for an 11,000 watt machine and had to settle for this 8,000 watt machine. I think it will run the pumphouse. Maybe I'll never have to find out.

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Dec 28, 2014
Reviewer name: MJL
5 out of 5 stars
5 out of 5 stars review

Excellent layout and presentation of features

I love my new Generac generator. It is exactly what I wanted and my wife bought it for me for Christmas. Great features and great performance. I considered other products, but none had all that I was looking for except the 17500E. So I wasn't going to settle for almost .... bought the best and got everything I wanted !!

Review from generac.com
Helpful?5QX50PEVBRFY13572122433