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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
stars541 ratings541 reviews
  1. 5 stars67% (364)
  2. 4 stars19% (101)
  3. 3 stars7% (40)
  4. 2 stars1% (6)
  5. 1 star6% (30)
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Showing 161-170 of 541 reviews
Jun 18, 2022
Todd
5 out of 5 stars review

The GP 3000i is super quiet and is a Smooth Runner

I just purchased my GP 3000i unit and it is great! I added the supplied oil, filled with 91 (no ethanol), turned the selector switch to Run, and honestly, the first pull started this little beauty. I ran it for 7 hours powering my fifth wheel (50-amp plug converted) and it ran flawlessly. When you turn the selector switch to OFF, it takes a minute or two to run the gas out of the line to shut it down, so don't panic, the switch does indeed work to shut it off. Thank you, Generac.

Review from generac.com
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May 12, 2019
Gem722
5 out of 5 stars review

Bought today Replacement generator

I bought this generator this morning, to replace my generator that was giving me some problems. Its so much quieter than the generator i replaced. It is lighter. It is also very stylish and pleasing to the eyes. The quality is outstanding. It is easy to start. Its also easy to add fluids. I love this generator! Im so excited to have such a quality product. I live off grid 100 percent of the time. I need reliable, dependable, and easy to operate products. Thank you Generac!

Review from generac.com
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Dec 7, 2017
Patrick
5 out of 5 stars review

Great Inverter/generator

Well it took a week or two after getting my new Generac IQ2000 before I could mess with it. I put the oil in and gassed it up, set evertything to "ON". It took several pulls for it to start the first time but it ran great. I love the "Time Remaining" the gas and also love the load graph, really neat features. It is much quieter that I expected. I think it will be perfect for what I bought it for. Thanks Generac!

Review from generac.com
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Apr 18, 2025
jimmyg5_9868
5 out of 5 stars review

Very quiet and easy to maintan

[This review was collected as part of a promotion.] I’ve been using the iQ3800 for home backup during storms and weekend RV trips—and it’s been outstanding. It kicks out 3,800 starting watts (3,100 running) on gas or 3,420/2,790 on propane, giving me flexibility when fuel is tight. Despite its power, it stays impressively quiet, so I can run it overnight without bothering the neighbors. Built with a rugged steel frame and protected outlets, it’s held up to bumps and rough handling, and the Eco‑Mode™ engine control delivers smooth, efficient performance under varying loads. I love the electric start (with manual backup) and the Smart CO™ shutoff for safety. Routine upkeep is a breeze thanks to tool‑free access to the oil fill and air filter. For reliable, low-noise power and minimal maintenance whenever and wherever I need it, the Generac iQ3800 has been a fantastic, peace-of-mind investment.

Review from influenster.com
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Aug 14, 2023
Me
1 out of 5 stars review

Never worked under load

My neighbor brought this new and it never worked since new. She gave it to my and I contacted warranty department and the said to take it to a city repair shop. The shop could not get help from the company. Thankfully I didn’t get a whole house generator. I have paperwork to show lack of help from manufacturer.

Review from generac.com
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Apr 19, 2025
trishan11_7912
5 out of 5 stars review

Camping trips here we come !!

[This review was collected as part of a promotion.] Just got the Generac iQ3800DF Inverter Generator and I’m seriously impressed already. Dual fuel (gasoline + propane), super quiet, and easy to move around—exactly what I was looking for. The digital display is a nice bonus too. I can’t wait to put it to the test during our next camping trip or power outage! So far, 5/5!

Review from influenster.com
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Jul 31, 2023
Wangle
1 out of 5 stars review

Out-of-the-box failure

3300 I set up easily and started on the first pull. I didn’t actually put an electrical load on it for a couple of weeks, and then discovered it wouldn’t run anything. I used an electric meter and discovered it was putting out 90 V. The store I purchased it from has a policy no returns once you put gas in a product. Generac warranty phone support give me the name of the place to take it. It was over 200 miles away, and I live in Metro Central Iowa. After doing further research it looks like this is a common occurrence for a failed product. I put a dispute on my credit card charge, and the store broke policy to take it back. Feel like I really dodged a bullet.

Review from generac.com
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May 25, 2021
Will
4 out of 5 stars review

30 amp advertising misleading

I bought this to power a small rv with a small a/c unit. It is strong enough to handle it; however, I am having to purchase an adapter to go from the L5 outlet to the TT30r. $800 is a lot to me, but this is my third generac product and all have worked well. It is quiet. I just wish that I had known that it would not work out of the box without purchasing something else. I called customer support and told them what I needed and they did not inform me of that either. Not a negative review but a head's up for future buyers.

Review from generac.com
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Oct 30, 2023
Lazybull68
5 out of 5 stars review

Very quiet and portable

Runs everything I need it to- AC in the RV, Power tools when off grid and it’s light enough for this old geezer to pack around. Also so quiet that I can hardly hear it running from 35 feet away. Will be handy to run the freezer or whatever if the power goes out .

Review from generac.com
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Jul 24, 2015
CT
4 out of 5 stars review

Looks like a front running competitor to Honda

The unit is Flight Test orange, For those of us in flight test that's a huge pigs over red. The noise is compatible to Honda and weight seems lighter, at least somewhat better balanced and easier to carry. Paralleling is easier than Honda Addington panel is well thought out and easy to understand. Access to engine compartment is wonderful for larger hands.

Review from generac.com
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