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GENMAX

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

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Arrives Tuesday, Jul 28
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Style: GM10500iETC


Features

  • Strong Load CapacityGM10500iETC has the maximum power among single cylinder silent inverter generator, the whole machine can work stably at 8500w running watts and 10500w starting watts on gasoline, 8000w running watts and 9500w starting watts on LPG, 6800w running watts and 8400w starting watts on Natural Gas, so large load starting current equipment, air compressor/blower/air conditioner can carry at one time.THD less than 3% perfect for sensitive equipments such as computer and cell phone.
  • Diversified functional control Panel Easy operation panel with remote start one-button start/electric start /ATS automatic control, etc., diversified configuration: equipped with 1X 120/240V AC 30A L14-30R Outlet,DC Cigarette Lighter Outlet: 12V DC 8.3A, 1X 120/240V AC 50A 14-50R Outlet,4X120V AC 20A 5-20R Outlet ,CO Alarm, Parallel Connectors,Battery Charging Port, overload reset switch and LED Light,Voltage transfer Switch can meet 120V/240V simultaneous use
  • Neutral FloatingFor easy bonding, make it perfect for home standby back up power easy connect the house. Using our special Bonding Plug(Sold seperately) to change the neutral floating to neutral bonded status for portable use.
  • Tri-fuel selectivity Multi fuel choice can reduce the fuel shortage risk, gasoline and LPG, Natural Gas can be used.Fuel selector switch design patent, smooth operation, easy to use.
  • perfect protection devicesThe whole machine is equipped with perfect protection devices, such as overload protection, thermal protection, overvoltage protection, undervoltage protection, overcurrent protection, short circuit protection, overspeed protection, etc., which greatly facilitates the user's operation and improves the reliability/safety of the whole machine;
  • GENMAX SupportIncludes 3-year warranty with FREE lifetime technical support from experts.

Description

Genmax is always striving to be a pioneer in the next generation of reliable and professional power solution experts. We know what we're doing, we're good at it. We have the experience, the skills, and the vision to power every corner of life, to make energy use more efficient, and much smarter. Visit the Store GENMAX is a research, production and sales technology company with more than a decade of experience designing and manufacturing reliable and durable power supplies for the North American and world markets, and genMAX generators are your best choice for home, work, entertainment, or preparing for natural disasters，GENMAX products are the standard of performance excellence. Engine: 4-stroke 458cc OHV Fuel Tank: 6.9 Gallon Fuel Type: Gasoline, Propane(LPG), Natural Starting Wattage: 10500W(GAS)/9500W(LPG)/8400W(NG) Running Wattage: 8500W(GAS)/8000W(LPG)/6800W(NG) Product Dimensions: 30.9" x 22.6" x29.3" Low Oil Shut-off: CO Detect Voltage：120V/240V Frequency：60HZ Certification:CARB/EPA/PGMA Starting and stopping the generator is a breeze with a reliable push-button electric start system. The engine's choke operates automatically, making it easy to start at the push of a button, so you don't have to worry about bad weather. The easy-to-operate, multi-functional panel features remote one-touch start/electric start/ATS automatic control and a wide selection of outlets.CO Alarm, Parallel Connectors,Battery Charging Port, overload reset switch and LED Light,Voltage transfer Switch. 1 telescopic pole and 2 wheels make this portable generator easy to move around, whether it's for home use or for your Recreational Vehicles, it's the best choice! Total harmonic distortion is less than 3% compared to real sine waves,and can be handled by even the most sensitive electronic devices.

Brand: GENMAX


Wattage: 10500 watts


Fuel Type: Tri Fuel


Power Source: Gasoline, Propane(LPG), Natural Gas(NG)


Recommended Uses For Product: Residential


Voltage: 120 Volts


Output Wattage: 10500


Special Feature: 50A Plug,voltage transfer switch, ATS,CO Shutoff, Forced lubrication,Remote start, Rain cover,oil filter, Resettable Circuit Breaker,LED light, Neutral Floating, Tri-Fuel,LCD Display,Low Oil Shutdown See more


Included Components: Battery Charger (1) ATS Cable (1) Rain Cover (1), Funnel (1) NEMA L14-30P Locking Plug (1) NEMA 14-50P Industrial Plug (1), Generator，Spark Plug Socket Wrench (1) Dual-Purpose Screwdriver (1), Remote Control Key (1) LPG Hose (1) NG Hose (1) NG Quick Connector (1) See more


Color: Orange


Wattage: 10500 watts


Fuel Type: Tri Fuel


Power Source: Gasoline, Propane(LPG), Natural Gas(NG)


Recommended Uses For Product: Residential


Voltage: 120 Volts


Output Wattage: 10500


Additional Features: 50A Plug,voltage transfer switch, ATS,CO Shutoff, Forced lubrication,Remote start, Rain cover,oil filter, Resettable Circuit Breaker,LED light, Neutral Floating, Tri-Fuel,LCD Display,Low Oil Shutdown


Engine Type: 4 Stroke


Ignition System Type: Electronic


Tank Volume: 6.9 Gallons


Engine Displacement: 458 Cubic Centimeters


Total Power Outlets: 7


Engine Power Maximum: 10.5 Kilowatts


Starting Wattage: 10500 Watts


Running Wattage: 8500 Watts


Frequency: 60 Hz


Runtime: 14 hours


Brand Name: GENMAX


Included Components: Battery Charger (1) ATS Cable (1) Rain Cover (1), Funnel (1) NEMA L14-30P Locking Plug (1) NEMA 14-50P Industrial Plug (1), Generator，Spark Plug Socket Wrench (1) Dual-Purpose Screwdriver (1), Remote Control Key (1) LPG Hose (1) NG Hose (1) NG Quick Connector (1)


Model Name: GM10500iETC


Model Number: GM10500iETC


UPC: 752671930840


Unit Count: 1.0 Count


Manufacturer: GENMAX


Item Type Name: Generator


Manufacturer Part Number: GM10500iETC


Warranty Description: 1 year


Item Dimensions L x W x H: 30.9"L x 22.6"W x 29.3"H


Color: Orange


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jul 28

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Top Amazon Reviews

    • A Very Nice Generator (updated 3/20)
Style: GM10500iETC
After weeks of frustration with the shipper, the GENMAX gm10500ietc generator finally was delivered. The delivery itself went quick and easy. Thumbs up to the delivery team. Getting the shipper to actually make the delivery is where the frustration came from. Word of advice to buyers; once the item has made it to the local distribution hub/last mile delivery point, be proactive on scheduling delivery, don't wait for them to call. Once I called and scheduled delivery, I had the item within a few days. Now to the generator: The GENMAX gm10500ietc was very well packaged and the generator was delivered undamaged. After unpacking, saw lacking was a User Manual. Reached out to GENMAXservice via email and got a reply within a few hours basically saying GENMAX has gone paperless (whether or not this is true, I'd like to hear from other reviewers in this regards) and the User Manual can be viewed online. If I wanted a printed User Manual, they'll send one out after providing proof-of-purchase, serial number and address, So, thumbs up to GENMAXservice for their prompt reply and willingness to sending out a User Manual. Also worth noting: the generator also did not come with the assorted plugs as seen in the listing or viewed in some unboxing videos which is okay. By the time you purchased a length of cord to use with the plugs, you could just as well purchase a premade cord ready to use out of the box. Did come with a quart of 10w30 motor oil tho, which I found surprising. For those wanting to know, the unit did come with a magnetic tipped dipstick so no need purchasing an after-market. After adding oil, connecting the battery and hooking up generator to propane, the generator fired right up. For break-in, ran the gm10500ietc for 2 hours with a couple of space heaters connected to the 30 amp/240 outlet, varying the load, with ECO mode on or off, heat gun plugged into the gfi outlets, the generator didn't miss a beat. Ran smoothly, rpm increased/decreased as the demand increased/decreased. First used the push button to start/shut down and then tried the remote. Remote worked perfectly. Did not need to add batteries or pair up the device. After running for 2 hours, weighed the 40# propane tank, did the math and came up with 3 lbs was used in that time. Still have some more break-in time to do before first oil change. So far, with the GENMAX gm10500ietc, everything is looking good and am confident I'll get many years of use. Went with 4 stars and not 5 due to the frustration experienced with delivery. If I could go with half stars, would of went 4 1/2 out of 5. It wasn't what I was expecting. Guess I'm too used to Amazon delivery going flawless nearly everytime. Update March 20, 2025 GOT THE JOB DONE!!! Due to high winds in the area, power was knocked out for most of the day. Pulled the 10500 out of storage and hooked up to house propane, started right up as I expected it would do and was able to power the whole house during the outage. Granted, being a moderate day, didn't need heat or AC and kept the water heater shutoff during the outage so the demand wasn't as great as it could of been. Am on a well tho and had no problems with lack of water. Used the microwave, coffee maker and toaster throughout the day. No problems there either. All in all, the generator ran for over 6 continuous hours with ECO set to ON with no problems whatsoever. Son commented on how quiet the generator was and how you hardly knew we were on backup power. So for powering through an outage like a champ, this generator regains it's lost Star and is now rated 5 Stars in my book. ... show more
Reviewed in the United States on December 5, 2024 by Mitchell M.
    • It's exactly what I was hoping for
Style: GM10500iETC
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. ... show more
Reviewed in the United States on March 12, 2025 by Sean O.
    • Defective unit.
Style: GM10500iETC
Quick delivery after purchase. Inspection after unboxing was OK but noted 2 hrs on display and no owners manual. Filled oil & connected battery and full LPG tank. After start and ~10 minutes @ low idle to warm up I started adding different loads (lights, small appliances, refrig, freezer, etc). All was good for ~ 1 hr when generator would severely bog then surge when a refrig or freezer compressor would start from a base generator load of 600w to 700w. It did this with low idle switch ON or OFF. With switch OFF the surge would stop output with OVERLOAD warning light illuminating. Reset was normal, but after 5 such events I disconnected and shut down the generator. Too much potential damage to computer and appliances. Unsatisfactory performance from this unit. Now awaiting refund. ... show more
Reviewed in the United States on November 21, 2024 by TandSH
    • Awesome
Style: GM10500iETC
Review Image by Hendrik van der Merwe
Review Image by Hendrik van der Merwe
Review Image by Hendrik van der Merwe
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. ... show more
Reviewed in the United States on December 17, 2024 by Hendrik van der Merwe
    • good generator for home back up
Style: GM10500iETC
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 ... show more
Reviewed in the United States on January 4, 2025 by Kindle Customer
    • Try fuel running, and quiet for the neighbors.
Style: GM10500iETC
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+
Reviewed in the United States on August 22, 2025 by watchman
    • Amazing features
Style: GM10500iETC
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. ... show more
Reviewed in the United States on September 17, 2024 by S. Block
    • Very quiet generator
Style: GM10500iETC
I haven’t used it yet, but I’ve started it up, and it runs very quietly.
Reviewed in the United States on March 2, 2026 by George Davis

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