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iQ 3800 Starting / 3000 Running Watt Gasoline/Liquid propane Dual Fuel Portable Generator

Ratings & Reviews for Generac iQ 3800 Starting / 3000 Running Watt Gasoline/Liquid propane Dual Fuel Portable Generator

4.4
363
Review
 4.4 out of 5
363 Reviews


88% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The Generac iQ3800 Dual Fuel Inverter Generator offers powerful yet quiet operation, with an Economy Mode to further reduce noise and fuel consumption. It features dual-fuel capability, allowing use of either gasoline or propane, providing flexibility in emergencies or off-grid situations. The generator has convenient features like push-button electric start, LED display, and integrated wheels/handle for easy portability. It also includes robust build quality and safety features like the COsense carbon monoxide detection system. While a few customers reported minor initial issues, the generator generally delivers efficient and reliable power performance.

Customer review summary generated by AI, including incentivized reviews.
363 Customer Reviews

New replacement

Replaced a faulty unit that would not run on propane with a new one

February 3, 2026

From generac.com

Great Features on the iQ3800 Dual Fuel generator

I am very pleased with the iQ3800 Dual Fuel Generator because of all the features it includes. It provides great value as a standby for living in an apartment in an area which is subject to get periodic ice storms and resulting power outages.

January 29, 2026

From generac.com

Power Outage - Generac 3300i

Within a month of purchase, we had a 30 hour power outage. I ran extension chords through the garage and into the house, and we powered a small space heater and some LED lights. We were very glad to have this generator to support us during this difficult time.

January 29, 2026

From generac.com

Good generator

Good machine. Not too hard to start , only negative is filling with oil it is hard not to get the oil inside the machine. Glad I purchased it.

January 28, 2026

From generac.com

Beyond disappointing

Would Not Recommend

I bought this a couple months ago. It never worked. The Fleet Farm I purchased it from would not take this product back. The generator is still at a small machine engine shop. I will never buy your products again.

December 30, 2025

From generac.com

Response from Generac Support

Thank you for sharing your experience. We’re sorry to hear that your generator hasn’t worked as expected and that returning it was difficult. That’s n...

Generac SupportDecember 30, 2025

Bad service

Did not run right. Received as a gift. Repair shops only work on ones they sell. Ordered a new carburetor installed it my self.

December 30, 2025

From generac.com

Response from Generac Support

Thank you for sharing your experience. We understand how frustrating it can be when a generator doesn’t run properly, especially when repair options f...

Generac SupportDecember 31, 2025

Absolute junk!

Would Not Recommend

Bought a new portable generator and it does not run once I put any kind of load on the unit. And there is no service repair shop anywhere close to my home.

December 29, 2025

From generac.com

Response from Generac Support

Thank you for sharing your experience. We understand how frustrating it can be when your generator doesn’t perform as expected, and we’re here to help...

Generac SupportDecember 30, 2025

After many years I had a slight problem. I contacted Generac by email and explained my situation and received a response with useful info and the schematics I requested. Problem solved, Thanks

December 20, 2025

From generac.com

Great Features, Nice Package, Nice Price!

Would Recommend

Got a decent deal on this product, was looking for a nice inverter generator to serve as a backup option for our small business. My only gripes on this is that you have to take off the side panel to service the oil (would rather there be a way to check and fill oil without a screwdriver) and that the Off/Run/Choke knob was easier to turn and gave some sort of haptics or snap to indicate that you are on proper setting (Run vs. Choke).

December 18, 2025

From generac.com

Problems

Would Not Recommend

When you purchase a generac you will be less than impressed. They will fight you on every warranty claim, you can’t even find a parts manual online. My generator is hardly 2 years old and have had nothing but issues and absolutely no help from Generac. You will regret it

December 17, 2025

From generac.com

Response from Generac Support

We’re sorry to hear about your experience and appreciate you sharing your feedback. What you've described clearly does not align with the level of sup...

Generac SupportDecember 17, 2025

So far its perfect

I bought the iQ3500 for my off-grid cabin to help charge my battery bank when solar is not an option. I also use it to run a small a/c unit when its hot. I have over 120hrs on it and have never had an issue. Its very quiet and has never given me any issues. For what I need it to do it seems perfect.

November 25, 2025

From generac.com

RELIABLE

Trip planned boondocking for part of it, all is well until it's not! The Sun didn't shine so no solar load. Backup gen wouldn't pick up load. Generac to the rescue!! The iQ5200 worked flawlessly, and saved us!

November 25, 2025

From generac.com

Best silent generator ever

Would Recommend

Extremely silent for the power! Love mine and never got faulty. Easy start and last long on eco mode.

November 18, 2025

From generac.com

parts manual

Can’t find a parts manual anywhere. I need to replace the side enclosure panel. Other than that it seems to be working fine. Just need to go camping and try it out

November 16, 2025

From generac.com

Response from Generac Support

We're glad to hear that your generator has met your expectations! To find parts manuals and additional product documentation for your generator, enter...

Generac SupportNovember 17, 2025

At 105 lbs. HARD for 89 year old to lift out of

Would Recommend

Generator is quiet and started on 3rd pullstart. Instruction misleading on electric start! Shows how to hook battery at battery studs! Cost me $20 to find out line behind battery was unplugged! Already hooked to fully charged battery!! Quietly does job using very little gas, haven't tried LP yet. WELL satisfied with it! Used to trim all my hedges about 4 hours, some 150 ft from a plug in! BLESSINGS!!!

October 30, 2025

From generac.com

decent capability for the price Difficult to maintain the carb if gas left in the unit long term always drain the gas when finished

October 30, 2025

From generac.com

Great generator for the price!

Would Recommend

I recently purchased a Generac 3300i inverter generator for my camper, and I couldn’t be happier with it. It’s quiet, efficient, and easy to start, making it perfect for camping trips. It’s lightweight and portable, so loading it in and out of the camper is no hassle. Overall, an excellent generator for the price—reliable, well-built, and great peace of mind when I’m off the grid.

October 28, 2025

From generac.com

Worked as advertised. Saved my food supply!

Would Recommend

Used it twice now for neighborhood wide power outages. It has enough power to keep a refrigerator, freezer and some electronics going. For the first outage I had charged the battery and it started with the electric start. For the next outage, battery wasn't charged enough. However, the pull start worked easy on the first try.

October 27, 2025

From generac.com

Great portable Inverter/generator

I'm very pleased with the purchase of this model Generac Inverter. Really like the dual fuel operation and its low noise level. The other features that did NOT disappoint is its mobility to move around with the clever pull up handle, makes it very easy to maneuver as I'm a senior citizen. Also, pleased with having both the electric start and pull start option should the battery get weak/fail. I purchased this to have an emergency backup for electric to our home in case we lose power during stor...

October 27, 2025

From generac.com