Don't Buy A Generator Until You See This Monster! 

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I bought a firman generator a few years back after losing $500 worth meat in my freezer. I hated spending $1,000 on something that would mostly live in my shed. Turns out we lost power about 6 times that year. The best $1,000 I ever spent.

Great video: I currently just set up a pair of WEN 12kW dual fuels for a customer of mine... 24kW max spike output. One thing that I would suggest as a small engine mechanic over almost three decades. ...the break in oil should never be synthetic. Conv oil run over two hours works much better to set the rings.

I own a 20+ year old B&S powered 8500 watt gasoline generator. I always turn the gas tank off and let it run until it stops. I've never had a problem with it working first try when I turn the gas back on.

Reading some bad reviews on Amazon for this thing's Quality Control. Their customer service is also said to be nonexistent. Hopefully they get this worked out soon.

Thanks for sharing this step-by-step tutorial.

Your oil pour sound effect is spot on

Just a slight correction- The 50amp plug will supply 50amps but only in 120v mode. If you select 240v, the 50amp plug is limited to 35amps without a parallel connection.

That thing is a BEAST! I had to look it up since mine looks way smaller and weighs about 125 lbs. That bad boy is a 458cc 4 stroke coming in around 250 lbs. If I could afford it I would totally buy that. Great video good sir! Would definitely like to see some decibel readings in the future!

Great and honest opinion. However... I've been looking and getting one soon and am leaning towards a large portable that is not an inverter. For $1200 - 1500 less you can get a tri-fuel w/ 13-15k watts that is just as quiet/loud.

Hey Hax - Thumbs up. Great work. Heading to my condo in St. Pete Beach this week. Come on down for a few cold ones and a great boat ride under the Sunshine Skyway Bridge. Best to Kim and the girls.

That’s something to consider, especially (2) in parallel, thanks 😁

This thing is awesome!! thanks for the review

For a bonded neutral generator all you have to do is disconnect the ground from the neutral terminal and wrap the ground connector with electrical tape. Now it's no longer a bonded neutral and is safe to use with grounded power panels.

Nice presentation. Wish this was available when I bought my Honda gen. The one caveat I have are those GFI outlets are very sensitive. I removed my and installed standard outlets because of random cutouts. Hard to beat that price!

Propane is the way to go. Thank you for the video.

My approach is different: I go with the smallest generator that will meet my maximum basic need, anticipating that fuel may be hard to get, and smaller generators typically use less fuel. And they’re going to be quieter. Living in Alaska, I don’t want my pipes to freeze in the winter, so I need to power the circulating pump on the gas boiler. Put food outside, don’t need a fridge. Maybe power a couple of lights. In the summer, I don’t need heat or lights, but do need the fridge. Propane keeps indefinitely, so better than gas, and doesn’t clog up the carburetor, but is less efficient. Easily stored. I agree, don’t use gas in it, except for initial testing, then run it dry, drain the carb bowl, and later run your periodic tests with propane after that. Having a generator can be very useful, but keeping it it’s box until you need it on a cold, dark, windy, wet night without any break-in period or familiarity, or test runs, and without knowing more or less specifically what you really want to accomplish, and not having all the infrastructure in place, may make for a less than desired experience. Having the natural gas option with the tri-fuel setup is ideal. Have a plumber run a gas line for you, using quick disconnects. In all of our power outages over the years, the gas has never been out, so in theory we have an endless supply of fuel. But there’s no guaranty of that, so have plenty of fuel (propane is my suggestion) stored away. And however much you have stored, when the time comes that you need it, you’ll probably wish you had more. And for a long term outage, my fuel will be reserved for cooking and purifying water, not running a generator to power the house, if need be.

Very impressive, Haxmeister! Id love to have something like that but...... 💰💰💰Yeah, little short on the bags of cash....and ive already got two propane generator's as it is. As a matter of fact, i just did a run check on my newest one earlier today. Love the electric start on it!! Great information as always, young man.... well done and many thanks! Take care, be safe and God bless!

It WAS the biggest inverter generator until right after this video when Duromax released their new inverter that does 16k peak apparently. Would be cool to see you review that when you get it!

Great video. Have you seen the Westinghouse iGen11000DFc inverter? There are no test videos on RU-vid. I'm looking for a whole house setup and the Westinghouse is about $1k less expensive than Genmax.

I have a 5500 watt gas generator that I've had for about ten years, I only use it a couple times a year and start it and let it run for about fifteen minutes afew times a year and runs great.

That is a beast...

Where are you going to get parts when something breaks? I just had a Duromax inverter in the shop with the propane switch had no power coming to it. Couldn't get parts so Duromax is replacing the unit since it is under warranty. But what happens when it is out of warranty? You need to be able to get parts easily.

Thanks for the testing and video. Seems like false advertising on starting and running watts if you can’t go beyond 30 amps with the 50 amp 240 volt outlet. Perhaps it can do more than 30 amps. You should do another video trying to max out the unit. Thanks again.

Whoa! That is a powerhouse!

Bought a craftsman briggs and stratton generator 3 years ago for $799.00 it runs off gasoline only! starting 10,000 running 7,500. Way stronger than I needed, go big or go home!

How deap is your well? My predator 9500 trips of i have loads on it and the well pump calls. Yours took the hit really well.

Damn that's a beast

Very cool !! I like that they include all those accessories.

That General is top choice

Does dual or tri fuel really have problems compare to just gas or just propane generator

DuroMax 13000E, Gasoline, 13,000 Starting Watts, 10,500 running Watts, $1400. Dual Fuel is $100 more.

try pouring the oil with the oil bottle sideways it wont have the giant air bubbles and pours smooth.

Hello Haxman XTRA ! Very impressive informative/video. Thanks. I wish I could use the ATS as well but like you I cannot. Your right about the names of these gen’s! LOL. The only one I can figure out is the i for inverter. Your Bonding plug for your floating neutral Gen. Is when you want to use just an extension cord to power something. You plug that Bonding plug into one of your 20amp receptacles and Generator is now Bonded. Remove it when using your Power inlet plug of course. You want it floating. I own a AiPower GSX7100iRD Duel fuel, i as well only use Propane. If I use propane and had gasoline in it, it would automatically switch over to the gas. Very long run time. I also only have/use an Interlock which I love. Mine has recoil/electric start/Remote. It’s about 63db. It has a floating neutral as yours does also. Quality and features are amazing. Everything you have except the 50amp plug and the charging port. I connected a NOCO 2amp Charger/Tender/Maintainer to mine. NOCO makes a great product. 7100 watts divided by 240 volts = 29.58 Amps. Yours is 12000 watts divided by 240volts = 50amp. Mine unit is 6 months old. Check out all the features on mine you will be impressed at just $999 at Costco. Now they have one for $1299 with that charging port you have. AiPower just came out with the AiPower SUA7600iED on Amazon for$1499-$100 coupon $1399. I would have looked into that one as well over mine. It has 500 more watts. Mine runs 2 refrigerators, Boiler and water storage tank, Sump pump, all lights(LED’s), WiFi, Router, TV’s and some small ac window units. It’s sick. It has a drain tube to drain fuel in storage mode if you use gas. I wanted to share my unit to yours for your Fans that do not need 12000 watts. Your unit looks great. Great luck with it and your channel. Everyone give him a thumbs up, heck I’ll take one to please if you like my comments. Please subscribe to HAXMAN’s channel. All the best Haxman, you and family. Mike ienuso.

How clean does it burn the propane? Could you isolate it with an adaptive exhaust and enclose most of it with noise cancellation insulation? Or would it generate too much heat? Seems like the side panels were plastic.

I have a Caterpillar 48 KW 3 phase unit with a transformer to make single phase that cleans up the power to keep the tripp-lite UPS units happy .

I found a video that helped me make my own ATS, it seems to work pretty good! Although, I have not had a lineman around to test if he gets zapped or not yet. Still waiting on that...

From my experience this is far bigger than most people need to run a mid sized home. My home has never taken more than 4000 watts continuous to run everything including an air conditioner but yours might vary. The other major consideration is noise; if you care about your neighbours, this might end up driving them nuts as my experience with generators (I own four) is that the Honda and other high end conventional inverters are very quiet even at 10 feet away. But for the price, this genny and it's bigger brother seems to be good value for the money

Awesome generator

Does it show how many watts you are pulling? I have no clue what load I have on my current generator.

What's the run time on one of these? Have you measured how much propane per hour it takes to run? I'd be interested in knowing that.

So, since it has that storage disconnect, on the battery . . . I have the same connector on a solar battery maintainer I use for my side x side. I wonder if I could use that to keep the battery at full charge?

More Haxman?! Well I'll be dipped; lets go!

Never, ever break in an engine with synthetic oil, period. Mineral oil allows the parts to wear in together and after a few hours you can put synthetic in and get the benefits of the superior synthetic characteristics.

This is the second video today I’ve seen an outside breaker panel. In the last video I commented that I’d never seen one before. I guess I can’t say that here. I’m still curious though, why? I’m in central illinois. Is it a warm vs cold weather thing? Seems tampering would be a problem:

Safe to say generators of this magnitude are gonna be loud. I have a 9000XP and my neighbors were pissed off but they were more pissed off because they had no power..for 5 days. Ima look into this one. Thanks!

Low idle wouldnt it just idle as it should depending on load while set to low idle?

I have one almost identical to this it’s a Westinghouse but just does dual fuel but power output is the same

Awesome

I always recommend having a UPS for any device that are electronic.

Awesomesauce!! How the heck did I miss this video. I apologize, Adam. For not holding up my end of the algorithm.

What generator did you gave that had the Bonded Neutral? How would I know if my generator is bonded neutral generator? DO you know if that's the case for the Firman T07571 ?

Very expensive At that price I can get a used generator with trailer for construction lighting or for welding Those motors run for years under heavy cold or heat. At auctions fees and a maintenance

Duromax just came out with a 16,000 watt inverter generator. I can’t believe it. It’s also 5 grand.

My only question would be, can you run your water well your air-conditioning and your water heater and your stove at the same time. I have an energy monitor on my house and at one point I saw 17,800 W but that’s with both elements in my water heater running and everything else on.

Anyone get the muffler pop at the end when turing it off when using propane? I expect theres LP in the line and some air to LP thing going on, but only when i turn if off. Im following the manual and spark plug is gapped right.

This is a BAD BOY! Best gen I've ever owned and super quiet!

When the power is out, so is the power at gas and propane locations, at least in my area. One of the ratings that would be most helpful in choosing a generator/invertor would be fuel usage in pints per hour at 80% or 90% load. Why do they give us usage at 50% load while we are trying to size the gen to our usage? Manufacturers list 50% load but do not tell us at what throttle percentage the unit is operating at. Fuel usage is not proportional to load.

You might want to find a straight in type plug as the one you are using is being pulled out of the socket due to the recess on the the genset. There seems to be a bar of metal right there. Are you also powering an electric hot water heater at 4500 watts?

Did you put a soft start on the AC?

The Onan p4500i generator also comes with a trickle charge cord.

Cool to see this mammoth with motorized wheels, or caterpillars, and much respect to the company to include all those accessories.

I'm Obsessed about the idea of converting the current Ford Explorer police inceptor, into a 'series hybrid' full electric drive, powered by a drop in and out generator like this. lol. People are actually doing this now, EdisonMotors is using a diesel engnie to power a full electric drive truck, very little battery needed as its not the main source of mileage.

It looks like a nice unit but for $2900? Two Predator 5k's with the parallel kit are about $700 less, runs quieter and will have 50A output. Plus, you'd have a spare if one goes down.

Your vocal glugs are on point

Price? I am wondering why you opted for a less powerful/lower output generator than you previously had?

I guess in a pinch this would work for like running a few space heaters if your power goes out...

Home Depot now sells a 9KW Trifuel Inverter Genny for $1550. You cannot beat that anywhere. Gotta have Trifuel and Inverter together or you toast your sensitive electronics.

And whether its the Champion 2.5KW Dual Fuel Inverter/Generator.. or the Honda EU2200iTAN or the GENMAX GM10500iETC Tri Fuel Inverter Generator.. Until nuclear microreactors (like Radiant) are available, it seems having a solar panel solution would also be good, like the Anker F3800 or the EcoFlow Delta Pro Ultra. What is the most "portable" solar panels you've come across?

I wonder if it would run acetylene. Or carbide gas.

My 13KW PTO generator cost $1895....but then again, my tractor cost $34000....lol

What ats does it work with

I have a Westinghouse duel fuel generator 12500 peak watts, remote start.. I’m good for now..

Do you have a soft start on your mom's AC unit or did it handle the full inrush current?

With this help for pop ups or maybe even a trailer

Propane / Inverter / 240V generator, first I've seen which checks all 3 boxes! Now the BAD NEWS: Amazon & Walmart say "This item cannot be shipped to your selected delivery location. Please choose a different delivery location." I'm in Southern California, and the description says CARB Compliant, so I'm suspecting it's NOT really CARB Compliant. Any thoughts?

do you know much about the upcoming generator ban? where they can't sell generators unless EPA compliant which few are

These types of videos should come with a disclosure statement. Most people hear the words whole house backup, that is not a 100% true. You were running 4500 watts with the water pump on if you would have kicked In the water heater, you would have tripped the gen breaker. If you would have turned on your stove it would have tripped the gen. Breaker. Even running the microwave at the same time as the ac unit could trip the gen breaker. A 9kw gen running watts is only 37.5 amps at 240v. Most 3ton AC units pull about 24 amps or 6000 watts and the surge amps can be 6 times that. Not trying to down play your video or push people against buying a portable gen, these are great units for a temporary situation. Just know they have there limitations and that you can't back up everything on your 200 amp panel with a 50 amp generator.

Duromax XP16000 is the latest monster out

Wish Honda would make something like this.

Btw I have a Westinghouse igen4500 and it has a battery maintainer.

I subscribed for the sound effects; “GLUB Glub glUb, gluB, glub GLUB!” 🤣👍🏼

I’m in California. The linked ad on Amazon says it’s CARB compliant but Amazon states it can’t ship to my location.

No engin break in process? They advise to go no load for first hour, replace an oil go with some load on second hour, replace oil and go no more than 75% power. After all this use synthetic.

I was going to get a propane generator. Not after watching this. In a crisis, gas will be more available. Broke down cars. Underground tanks. Propane won't. I'm all solar right now. But i was thinking of back up? Propane to Gas Generator?

I mean, saying the 50amp outlet is only 30 amps unless parallel is just wrong. It's 50 amps in 120v, which is likely to be the most common way it's ran.

How would someone parallel two large gennys like this? All the parallel kits I see online are only good up to 9KW.

What about the engine break-in period and the less than 75% load for the first 30 hours?

The guy in this video looks like Russell Crowe. "L.A. Confidential" (1997), his best film in my opinion.

I had a 13kw generator from Amazon dual fuel

I got same benefits with Champion 10,000 watts for only 1100.00 dlls.

About never putting gas in it… I add Sta-Bil 360 fuel additive to all my gas for my generator, lawn tractor, wood splitter, weed whacker and chain saws. They all start right away even after 9 months to a year of non-operation.

How deep is your well?

Are these actually reliable? They seem almost too good to be true for the price?

Can u tell me where it’s manufactured

I probably missed it but can you tell me how many tons the AC is you started up?

100 amp service (50 amps per leg) at 240 volts = 24,000 watts (24kW; 12kW per leg) This would be the theoretical maximum you would use, however, it is highly unlikely you will get anywhere close to it. Most moderate homes pull far less at any given moment. My highest usage capped at 16kW for two days out of the year and averaged about 11kW per day. 11,000/240 = 45.84 amps. All that to say that any INVERTER generator that can supply 10kW should run your whole house without a problem. I specify "inverter" because non-inverter generators produce "dirty" power; the waveform is not smooth and symmetrical. Electronic devices can be damaged by "dirty" power called Total Harmonic Distortion (THD). A generator producing a THD of over 4% can damage electronics.

Just as important as having a generator is having enough fuel to run it, on hand before the power outage. Producing electricity at home is expensive and costs even more when running too large a generator. This is too large for most people.

strange that they don't include break in instructions. just about every other generator out there says run regular SAE 10- 30 during the break-in period. Break in is : during the first 8 hours of use run at no more than50 percent load and after break in change the oil and if so desired at that time you can run full synthetic.

Great video.can you tell us where this can be purchased?