I bought this generator because of the Oct storm. We were out for four days (not again if I can help it). I had a transfer switch installed. I have two heaters (gas), refrigerator. hot water heater (gas) kitchen lights, dinette lights, bathroom lights, hallway lights and family room outlets hooked up to the transfer switch. No problem with all of it on at the same time. I run a line to the garage refrigerator. In the evening, I ran a line from my washer/dryer to the family room outlets. Again there was no problem. The generator is outside. I closed the garage door and the door to my house (there is no discernible noise from the generator) and after a while I forget I'm on generator power. It takes forever for this generator to run out of gasoline. I rated it five stars because (so far) there is nothing this generator has a problem carrying.

I live in the Suburbs of Buffalo where the winters are awful. I bought this Generator as protection for my family when we needed it the most. We lost power for almost a day, my new family, including my newborn son were able to stay warm. If you want a Power House of a Generator, that can run Fridges, Freezers, light stoves and ovens, and keep the heat on! This is the BEAST - I mean, best to get ;-) Running a Fridge, Freezer, Furnace, and several lights and Electronics, gas lasted 6 hours. Unit has 5 gal capacity. Rule of thumb is an hour a Gallon to be on safe side. I am a Generac Customer for life. GP8000e with COsense is an amazing unit. Thank you.

I purchased and received my GP15500 EFI on July 11, 2023. I purchased the unit to supply supplemental power to my home, as we experience frequent multi-day power outages due to severe weather. As of yesterday, 07/29/23, we were subject to severe weather and lost power. I fired the generator up and started supplying power to my home. The unit worked flawlessly for 10 hours, getting me through the night. Woke up this morning, 07/30/23, and shut the unit down to let it cool before refueling. Went to get more fuel and when I returned home (30 mins later) I found that the top portion of the fuel tank imploded and collapsed on itself. I am in complete disbelief. This was supposed to be a reliable piece of equipment and at $4,000.00 I expected more. Yes, the unit is covered under warranty. However, no Generac certified repair shop is open on a Sunday and I estimate not having my equipment back for several weeks, figuring new parts will have to be ordered. The unit was assembled and maintained according to the manufacturer's manual (i.e, oil level, fresh fuel, proper storage, etc.) And only has 11.2 hours of run time. I went with Generac because of their exceptional reputation but now regret my purchase, as I have a $4,000.00 paper weight and no power. I may update this review once my equipment is repaired but fear I will run into the same issue in the future. I tried to add photos but I am unable to do so.

Dealer made purchase very easy, put generator together while I waited and showed full operation of the equipment. Product is heavy but easy to move, gas shut off makes it easy to relocate the equipment without flooding the carb and smelling up the SUV.

I researched a host of generators before deciding on the Generac GP6500. For me the Generac brand was the deciding factor and the GP6500 was the largest wattage I could fit into my budget. It was shipped promptly and arrived without so much as a scratch on the box. Assembly was quick and easy. Had a transfer switch(6 breaker) installed and everything in the house is usable except central air and washer and dryer. The generator started up on second pull and roared like a lion but powered everything I wanted it to power with room for more. I couldn't be happier. Almost looking forward to the next power outtage because I am ready for it now. I have not seen anything on this generator that is not well built and ready to last for a long time.

I have had the pleasure of not having to use my generator that I purchased just over a year ago. However for the first time this summer it was finally used but yet again not by me. During a series of severe weather outbreak a friend of mine last power due to downed trees. I offer my generator to him to help keep his basement from flooding. His intention were just to use it for the sump pump. He ended up running not only the pump, but his freezers, refrigerator, air conditioning units and other things. He used it for 40 hours straight and forgot he was even on a generator until he had to fill it after the first 27 hours of run time.

I live in North Georgia, we have ice storms and snow storms and tornadoes, even tropical storms that knock out our power from time to time. My house was prewired for a generator and has a transfer box. This unit was pretty much a plug and play situation. It easily runs the heart of the house more then adequately. For the last 3 years we have had to use it for every year for anywhere from 4_days to 2 weeks and we ran it 24/7. Other then changing the oil and replacing the starter battery, its been maintenance free. I heartily recommend this unit to anyone that needs a generator.

Solid performer after fixing battery issue. The battery died after 6 months and would not hold a charge. After installing a new battery and a disconnect so the battery no longer had a drain on it, I also installed a motorcycle style trickle charger. It now works perfectly and the battery holds a charge. I keep the battery disconnected until it's time to use it. It is now a perfect generator after the $50 upgrade. Too bad Generac did make the improvements in the factory because it does take a certain amount of expertise and engineering to correct the problem but is doable if you have the right tools. I will attach some photos at a later date.

I have given this generator a 5 star rating based on my experience with it so far, and so far I haven't needed to use it for the reason it was purchased; to supply emergency power during electrical outages. That having been said, I am impressed with what I have seen so far. The unit arrived in perfect condition, and assembly was easy. I was concerned by the advertised weight at first, but the carton was easily handled by two people, and after assembly, it is easy to move from storage to the driveway where it will be used. The battery was charged when it arrived, and it started right up and ran steadily for about 15 minutes. I had minor difficulty adding the engine oil, in that I had to hunt around for a long necked funnel to use to pour the oil into the unit, no big deal. And, the instructions indicate that you should check the oil level as oil is being added, so as not to overfill the unit. I did this, only to read later that the recommended oil capacity is 1 quart, and exactly one quart of oil was supplied. It would have saved me a few minutes if the instructions said "Pour the 1 quart of enclosed oil into the oil fill plug". Also, no big deal. Finally, it would be nice to have a compartment or something on the unit to hold the battery charger. I solved that problem with a bag attached to the frame with zip ties. If this is all I can find to complain about, I would say that I'm pretty satisfied. I trust that this unit will perform as well when the need arises as it has so far.

I already had a Generac Pressure Washer and it has worked great so I did some research on their portable generators and they looked like they also had good quality. I purchased one a few weeks ago and it is a very well built generator. It has performed better than expected.