GENMAX Tri Fuel Generator,10500-Watt 458cc Tri Fuel Gasoline Propane Natural Gas Portable 50A Generator with Remote Start,Ideal for Home backup power.

This generator is very quiet and after connecting it up to the natural gas line, filling it with oil (ONLY thing I wished they included in the box) it did not take long to fire up. It did turn over several times, to be expected, but then it ran perfectly. I have not yet connected it to my house, need to get that wiring done - but it's set up for now. What impressed me was that it came with the quick connect pipe and the extra loose fitting that I needed for the connection to the main line - and for that, I give this the 5th star. The seller did a great job, making sure (expect for the oil) that you could fire this up, out of the box. I had to drive to a store to buy the oil - but not a big deal. My suggestion to the seller will be to ADD a sealed bottle (quart) of oil. Some customers may not have the oil on hand and have to drive some distance to get the specific oil. Overall, I recommend the generator and the seller. Super chuffed that I bought it.

I got this for my home as a back up and other future projects. Just put 5 hr. and test how it will work with my home. It runs almost everything can run the central AC 3 ton and the well pump at the same time , you have to keep in mind to prioritize the equipment that you need. It can't run all at the same time but if I turn the AC of I can turn on the water heater and well pump and take a hot shower. Will recommend. Pros: Low noise, Powerful, Easy to start, easy to perform oil change Cons: heavy, Can be difficult to transport

Purchased mine on January 6th of 25 Never poured a drop of gasoline in tank since purchase. Only has been ran on propane. On 8/03/26 we had a black and i ran out of propane late night. Poured gasoline in tank and it would not start. Turns out the plastic knob striped at point of contact with selector valve due to it being frozen. I see these knobs all over ebay and amazon that someone sells 3d printed. So far i cannot find parts for this machine anywhere. Tryed contacting Genmax no reply. I wasted 3grand on this china junk. Very disapointed.

After tons and tons of research, I finally landed on this Genmax as it ticked all my boxes for a generator that could run on natural gas, was a quieter and more fuel efficient inverter generator, and could power my whole house with watts to spare. After performing a 5 hour break in period and using it for a couple short outages, I'm really happy with it. It arrived safely in pretty bullet proof packaging with some beefy pieces of wood on either side. The unboxing was nice, it came with a bunch of accessories like a cover, NG hose, propane hose, bonding plug, and magnetic dipstick. The build quality feels really high and having a generator with an actual oil filter is another nice feature to provide some peace of mind that metal shards aren't circulating around the engine. I love that it comes with a leave-in battery charger so it'll always be ready for an outage instead of finding that it's drained if you haven't run it for a few months. For actual usage, it's been a breeze. If it's starting up cold on natural gas, it sometimes takes a second press of the electric start button because it needs to bleed the air out of the line, but then it starts right up and runs great. The readout is super nice and having the wattage draw readout is really handy to get a feel for how much your house is actually pulling. Plus it has a handy little LED light on the front panel so you can see what you're doing in the dark! It feeds into my panel with a 50 amp inlet and an interlock kit with zero issues. Plus it's floating neutral from the factory, so you don't have to crack it open to convert it like many other bonded neutral units if you're using it for home backup.

Very happy with the packaging and the quality right out of the box. Setup was simple.

first rate machine.

This is the best generator of the 20+ that i have owned. I wanted an invertor generator for the cleaner power output, and to reduce noise and fuel consumption under light loads. I also wanted to primarily run it on Natural Gas during power outages, but still be able to use propane or gasoline if needed. There aren't many choices for tri-fuel inverter generators, and most invertor generators are very small. This generator has everything i was hoping for, and a few undocumented features. I was surprised to see that it has the capability to be controlled by an automatic transfer switch (ATS). The cable is even included. If you have and ATS, it can be wired to automatically start and stop this generator like permanently installed standby generator. It can also be paralleled with a second generator for double output. This is important for me because running on natural gas doesn't provide full rated power like gasoline. Paralleled units should run everything, including my central AC without a problem. The quality is excellent. It's a bit heavy to be used as a portable unit, but it is nice to be able to move it around when needed.

Works well, surprisingly quiet from others I have had. Put a meter to it, has stable voltage both legs of 240 and locked on @ 60 HZ so it’s easy on devices. Very well made from bottom up. Would buy again if I need one, but might get the Genmax open frame only for ease of service. Great product. A+