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Customer reviews for 3,300 / 2,500 Watt Generac GP3300i Portable Inverter Generator for
3,300 / 2,500 Watt Generac GP3300i Portable Inverter Generator
4.4 out of 5 stars
stars
549 ratings549 reviews
  1. 5 stars67% (369)
  2. 4 stars19% (102)
  3. 3 stars7% (40)
  4. 2 stars1% (7)
  5. 1 star6% (31)

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Showing 221-230 of 549 reviews
Mar 29, 2021
Vols34
5 out of 5 stars
5 out of 5 stars review

Off grid for 1 year

Due to Covid, I have been living off grid for about a year. I run my generator for 6 hours every 3 days in order to charge my lithium batteries, and it has met all of my expectations. The electric start is great, and I have only used the pull start twice, when it was well below zero. I would definitely buy again. My only concerns are for me, I find the fuel remaining display hard to understand and don't use it. My only other comment is that the spark arrester got supper dirty and clogged up to the point that it made the generator very hard to run. I removed mine and have not had any issues since.

Review from generac.com
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Feb 2, 2025
Max and Rio
5 out of 5 stars
5 out of 5 stars review

GENERAC 3500 IO

I purchased the 3500 IO back in 2020 in Texas. To date I have 7558.7 hours on the unit, it went through the Big Freeze in Texas, kept my neighbors homes heated during power outages. This unit has had the oil changed every 250 hrs (30W), Lucas upper cylinder gas additive occasionally, a new pull cord at 5800 hrs and a yearly plug change. I recommend this unit for all your uses up to 25 amps, it hasn't let me down. Great unit

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Jan 26, 2021
Throwersdad
5 out of 5 stars
5 out of 5 stars review

Very quiet

I purchased this to use at an off the grid tiny house and really wanted something quiet. This works perfect for a quiet power source. The only thing I’d like to see addressed is having the oil drain out of the bottom instead of the side. The side drain isn’t very user friendly.

Review from generac.com
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Oct 15, 2019
Daniel
3 out of 5 stars
3 out of 5 stars review

Yeah I bought this portable Generac generator and when it doesn't have a load it runs very rough I don't know what's wrong with it I got a good gas in

I bought this portable generator about a year-and-a-half ago and I start it regularly it but when it idles it runs very very rough I don't know if that's normal or not you put a load on in this moves it out but at an idle runs a very rough with new gas cuz somebody please let me know if that's normal or not thank you very much

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Jul 12, 2023
James
1 out of 5 stars
1 out of 5 stars review

Overloads for no reason.

I bought this unit for a month long trip. This thing turns off after a very short time displaying"overloaded" no matter what you do. I tested it with just a 1500 watt coffee pot and same result... "overloaded" Very dissatisfied with this product as it left us without power for a majority of our trip which was 80% dry camping. Don't recommend

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Jan 30, 2021
BReap
3 out of 5 stars
3 out of 5 stars review

Good product

I think its a great generator, however it was damaged upon delivery. The housing cage was bent and the panel also a little bent up. Normally I would have sent it back but needed it ASAP. Overall it runs great but was extremely disappointed with the damage upon delivery.

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Jan 26, 2021
MariaP
5 out of 5 stars
5 out of 5 stars review

A Great Generator at a great price

After spending a lot of time researching different generators this is the one we bought. It has a lot of the features that the more expensive ones have and it is very well priced for those options. The best part is hearing or I should say is not hearing it in action. It is very quiet and does the job.

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Feb 27, 2023
Yeffers
5 out of 5 stars
5 out of 5 stars review

Got me through a 4 day power outage

Power was out from 8PM on Wednesday to 11:30AM Sunday. This little machine ran flawlessly with nothing more than a couple refuels. Ran my furnace, refrigerator, a couple lights, my TV, and my CPAP machine with barely a hiccup. Ran for over 8 hours if not 10 on a single fuel up. Just need to change the oil and check the spark plug so it's ready for a monthly test and hopefully stays in the garage for a very long time. Good to know it is there when needed. Maybe a camping trip or two this summer!

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Oct 10, 2020
MCFD56
4 out of 5 stars
4 out of 5 stars review

Great generator - poor welds on wheel brackets

Opened the box to a brand new one thousand dollar generator. Everything looked great. Not a blemish anywhere. Started assembly and all is well. Wheels installed no problem. Handle, added oil, connected battery, gassed up, started and ran beautiful; again no problem. First time moving on wheels; problem. Both wheel brackets broke free from all but one weld. Impossible to move more than six inches without backside wheel pigeon toeing into the muffler. Hurricane Delta was fast approaching to my area of south Louisiana so I wasn’t about to return a good running generator. I would tough-out the inconvenience and deal with it after the storm. I wasn’t about to return the 200 pound unit and spend the time assembly another. The generator turned into a thousand dollar stand-by insurance policy. I’m otherwise happy for making the purchase. I’m not the first one to experience the weld breaks after reading reviews. Serious consideration for a Generac whole house standby generator purchase is now in jeopardy unless my complete satisfaction with warranty claim is made.

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Jun 16, 2023
JohnnyRV
5 out of 5 stars
5 out of 5 stars review

Great Generator

Bought this generator to power my RV for off grid camping. Have only been out with it once so far but are very impressed with it. Starts like a dream and easily powers my AC and other things. Runs very quiet on economy mode. My only suggestion is that it needs wheels since it’s quite heavy to lift.

Review from generac.com
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