
Ratings & Reviews for Generac Next Generation 18000 -Watt Dual Fuel (Liquid Propane/Natural Gas) Home Standby Generator
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this whole-home generator for reliable, automatic operation during outages, with seamless power transfer within seconds to sustain full home loads including central AC, heating, ovens, dryers, and hot tubs. Many report flawless performance during extended outages lasting days. Reviewers highlight the profound peace of mind it provides, especially for households with medical equipment needs. The mobile app is widely appreciated for real-time status updates and automated outage notifications. Customers describe the unit as well-built and cost-effective compared to alternatives. A small number report WiFi connectivity issues or service delays, but these are significantly outweighed by positive feedback.
Customer review summary generated by AI, including incentivized reviews.Great unit and overall experience
Would RecommendOverall, I’m very pleased with this unit! Everything exceeded my expectations.
From generac.com
Junk wish I would’ve went with a different company
Would Not RecommendL I bought this generator less than a month ago and it broke down within the first month installer keeps canceling my appointments to figure out what’s wrong.
From generac.com
Poor Product
Would Not RecommendGenerator was installed and does not work. Installer is doing their part to troubleshoot. Extremely disappointed with the product, not the installer.
From generac.com
Thank you for sharing your experience. We're sorry to hear your generator was installed but is not operating as expected. We're glad to hear your inst... Read More
Faulty equipment
Generator has only operated for 107 hours and quit running. Very difficult to get warranty service.
From generac.com
Thank you for sharing your experience. We're sorry to hear your generator stopped running after only 107 hours of operation and that obtaining warrant... Read More
Peace of mind
Would RecommendI bought this last month. Dealer was very fair in pricing. Installed in a timely manner.
From generac.com
whole home generator 26kw
had it for a year. no ;issues whatever. app is relatively easy to use.
From generac.com
Best Buy Ever!
Best buy we have ever made. A month and a half after it was installed, we had a big windstorm in Montana (in December). Power was out for 3 days, but our Generac generator started right up and kept running for 3 days, with NO problems at all. Kept us warm, kept the lights on, kept the hot tub hot. We could cook and go on with our daily lives with no hitch. It's a Godsend!
From generac.com
Fast Power Transfer
I finished installing generator a mouth ago. Pretty straightforward installation. I had my first outage during a storm last week. Generator started and transferred power within seconds. Very happy with quality and performance of my new generator system.
From generac.com
Fast and efficient.
I finished installing my generator a mouth ago. I have my first outage during a storm. The generator performed perfectly. I am very happy I installed this generator system.
From generac.com
Bought and installed in the last month , gives us piece of mind , as well as the ability to work from home without interruption.
From generac.com
You won't be disappointed!
Would RecommendI have been wanting to purchase a whole home generator for some time. Finally bit the bullet an got a 26KW with transfer switch about a month ago. 2 days ago, 08/13/26, the power died for about 4hours. Unit kicked in flawlessly and handled central AC, stove and package AC unit with ease. I like the fact that natural gas is always ready to go when problems arise. Install was truly professional and exactly as promised. I'm a satisfied customer!
From generac.com
great unit
This is a great unit and we love it. best buy we made
From generac.com
The app is very good and verifies its working
Would RecommendHad this 6 weeks now, just before storm season. Good quality product but difference is the installation by a company that only does generators, not some diversified franchise or one-at-at-a-time electrician. Family run business that concentrates on Generac and installs 5- 7 per week. The price was $2800 less than other vendors and they gave me the confidence of a quality installation and maintenance program.
From generac.com
Don’t know enough about the unit
Would Not RecommendFor all the money I spent on this unit I should get a new complete replacement
From generac.com
We understand that choosing to invest in backup power is a major decision, and we're here to help you resolve any problems you may be having with your... Read More
We had it installed for one simple reason. My wife is on oxygen and we can not have a power failure endanger her life and wellbeing.
From generac.com
Peace of Mind
I purchased this one year ago. It is whole-home capable, completely automatic and easy to monitor with the phone app and the Ecobee thermostat. The generator responds to power loss in seconds. It is very reassuring to know that if our home loses grid power while we are away the app will notify us.
From generac.com
Don't buy this unreliable generator
Would Not RecommendI bought this NextGen 28kW to replace a rusty but reliable 20 year old 35 kW Generac. Our NextGen failed immediately at our first power outage 3 weeks after installation and is still nonfunctional after 3 service trips and more than 4 hours labor over the last week.
From generac.com
Thank you for sharing your experience. We're very sorry to hear that your new 28kW generator did not perform as expected during its first outage and t... Read More
Reliable Protection
Purchasing this generator was similar to putting up a magical ward against power failures. Where the original motivation was a frequent number of outages, we’ve not had any single outage since installation. In it’s standby configuration it’s met our expectations.
From generac.com
Thank you for sharing your experience. We're sorry to hear your generator experienced a problem so soon after purchase and that your service appointme... Read More