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Customer reviews for 11000/8500-Watt Genmax Tri Fuel Portable Inverter With Co Sensor + Remote Electric Start / Folding Handle for
11000/8500-Watt Genmax Tri Fuel Portable Inverter With Co Sensor + Remote Electric Start / Folding Handle
4.6 out of 5 stars
stars
67 ratings61 reviews
  1. 5 stars79% (53)
  2. 4 stars12% (8)
  3. 3 stars1% (1)
  4. 2 stars0% (0)
  5. 1 star7% (5)

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Showing 1-10 of 61 reviews
Oct 23, 2024
Reviewer name: Rodger R
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great Value

Delivered when promised. Truck had lift gate. Driver rolled it into my garage with pallet jack. Robust packaging and banded to a skid. Works as intended with no issues. Surprisingly quiet. I run this on natural gas only. On first attempt to start, It started on 3rd try. When you initiate starting, it will crank for about 5 seconds then stop. I guess this protects the starter. Subsequent starts it fires right up. There is no plastic cover or electrical connection cable included. The 12' gas line hose included is 1/2” diameter. This is the best value I could find for anything comparable.

Helpful?20UAU8PEYAUZ13591274676
Nov 17, 2024
Reviewer name: BL
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Very happy

This thing is nice. I bought it because I have natural gas ram to the house. I'm very happy and only done the break in running my camper but have it to back the house up.

Helpful?20UAU8PEYAUZ13591274676
Oct 5, 2024
Reviewer name: Johnny
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Everything I hoped for.

Generator was delivered on time and perfect condition and is everything I hoped for. The tri fuel is the only way to go.

Helpful?20UAU8PEYAUZ13591274676
Jul 17, 2026
Reviewer name: anonymous
5 out of 5 stars
5 out of 5 stars review

Great Generator recommend 100%

This is a great i have only used it in gas mode. Runs over 8 hours with camper AC on 68. 30 amp camper using the 50 amp plug. Also my buddies generator with out of his camper ran a 30 amp cord from the 220 twist lock and now running his camper also. Very heavy left it in the back of my truck. Loaded it with my tractor .

Helpful?20UAU8PEYAUZ13591274676
Jul 24, 2024
Reviewer name: Berr
5 out of 5 stars
5 out of 5 stars review

Genmax 11000

Purchased the Genmax 11000 about 8 weeks ago. The Genmax arrived via a delivery truck and everything was in perfect condition. The generator was well boxed to ensure the product was not damaged. I was surprised how well made the Genmax is and think it will provided years of great service. We purchased this product as the emergency back up generator for our whole house. This handled our 5 ton air condition with no problems. We did have a soft start and interlock system professionally installed by the electrician. We live in the Houston area. Natural gas will be our preferred fuel source. Would like to see a custom Genmax dust cover included.

Helpful?20UAU8PEYAUZ13591274676
Aug 15, 2024
Reviewer name: LAsPCinc
5 out of 5 stars
5 out of 5 stars review

Tri fuel tech is a game changer

Wow! Genmax Nailed on this one – The tri fuel option is a must these days and I will never get a generator without out it. I did some shopping around and this was the only big wattage unit that came in an enclosed inverter while providing me with the running wattage that I needed to power my house. Ordered this unit back in June and the unit arrived at my house less than 3 days later- and the white glove service was impeccable. The guys unloaded the unit for me and dropped it off exactly where I needed it to go which was sweet, I was a little worried about maneuvering this beast but once it arrived the heavy duty handle bars and wheel system make it super easy to move around, youre carrying less than a quarter of the weight. I was looking at the Westinghouse unit which was a few hundred dollars more but was an open unit. The fact that I can keep this unit running outside indefinitely while having it connected to my natural gas line and have people over in my backyard without being disturbed was shocking to me.. the noise level is so low you barely notice it in the background. I also have been in talks with their support team about getting this unit connected with a transfer switch which I will be doing soon – Oscar and the genmax support team were awesome with answering all of my questions and getting back to me with emails – very happy with my purchase after 2 months of owning

Helpful?20UAU8PEYAUZ13591274676
Dec 1, 2024
Reviewer name: Jimmy
5 out of 5 stars
5 out of 5 stars review

Works very well.

I have yet to use this generator in anger but I have run it once a month for 1/2 hour to test my whole house backup system for the last several months. I run 240 volts from the 50 amp plug to a 50 amp whole house interlock. When I got it, I ran it from a 100# propane can and it ran well on that. I have just installed a 3/4" NG QD on the side of my house (which a certified plumber hooked up and tested) and ran the generator this month on NG. I plan to use the propane can as a backup fuel source going forward. I have not tested the generator with gasoline yet. It starts right up from the propane but takes a bit to start from the NG line as I suspect it needs to purge more air from that line as it is larger (3/4" with 1/2" adapter) and longer (20 ft.). I was able to run my home's 3 ton AC unit (with soft start) this summer with this generator. About the highest steady load I have seen on it with NG so far is 5700 Watts. I had low idle On and the lights momentarily dimmed when my 4000 Watt water heater kicked on but the generator responded quickly and automatically bumped up the RPM to meet the demand.

Helpful?20UAU8PEYAUZ13591274676
Mar 7, 2025
Reviewer name: Adam
5 out of 5 stars
5 out of 5 stars review

Great Initial Impressions!

We just received it yesterday by freight truck on a sturdy pallet, damage-free, (big shoutout to Pilot Air Frieght and PAF Transportation to get it to us without incident). It's packaged with a combination of sturdy cardboard, plywood and banding. I haven't fired it up for the first time yet, but I have added the oil and connected the battery, both very simple tasks with the provided oil funnel and battery quick connector. Gaining access to these areas is also simple, by removing three 8mm screws on each side. Seeing all of the sound insulation behind the panels leads me to believe that this unit will be far quieter than my previous unit. First impressions are mostly great! Nice touches include the already-mentioned battery quick-connect and oil funnel, in addition to a lighted control panel, easy to use controls and a rain/dust cover for when the generator isn't in use. Comes with pretty much everything needed to run on all three energy sources, save for an electric cord, (although it does come with one 30-amp male plug, you will need to buy a 50-amp cord if you want to use this unit to it's full potential). My only complaint is that I wish the instruction manual had better English. I understand that this product, like many others like it, came from China, so I get it and I'm not really that upset about it. If I'm able to update this review after I run it for the first time, I will do so here, but otherwise, I'm very pleased!

Helpful?20UAU8PEYAUZ13591274676
Dec 7, 2024
Reviewer name: James2024
5 out of 5 stars
5 out of 5 stars review

Great features!

Recently purchased this after the Helena storm with a smaller generator just didn’t cut it. Looking forward to putting this beast to work or maybe not..don’t really want to lose power. I purchased this after a lot of research to insure I got the right one. Went with inverter as the standard generator is loud. This one has the 50 amp plug as I had added a plug and tied it to the breaker box with an interlock. Also having to find gas was a pain, so I am looking forward to getting the natural gas set up. One thing I did notice was that even though this unit comes with a 1/2 natural gas hose it has a 3/8 inlet connection on the generator for the 1/2 inch hose. I purchased a 3/4 hose and adapter for the 3/8 connection as I wanted to ensure flow was not a issue, maybe over kill.

Helpful?20UAU8PEYAUZ13591274676
Dec 8, 2024
Reviewer name: Rick
4 out of 5 stars
4 out of 5 stars review

So far so good

I only have 5 hours on it for the break-in so far. It doesn't come with the ATS cable, but I am not going to use that anyway. The air filter is really wedged in there, not the easiest to open and remove to get it oiled. Plus, the plate behind the air filter to the carb intake fell out and was a little difficult to get back in properly. The oil strainer is also a little difficult to reach. Other than that, it performed well on my break-in runs up to 4kw.

Helpful?20UAU8PEYAUZ13591274676