Back to Amazon.com
customer reviews
2,724
4.4 out of 5 stars

DuroMax XP4850EH Dual Fuel Generator 4850W

$399.99
$599 33% off Reference Price
Condition: New
Sold out Back to product details

Top positive review
367 people found this helpful
One star Mercedes - Five star Ford!
By Brian F. on Reviewed in the United States on February 12, 2014
I live 'off-the-grid' and needed a back-up generator for my primary one. In fact, I needed it really badly, as my primary unit's engine self-destructed. Although solar energy is one way in which I "make" electricity for my home, during the Pacific Northwest winters, there's just not a whole lot of Ol Sol to go around. Here I am in the middle of winter and my primary source of power has just died. I quickly researched available options and came to this little DuroMax generator. Reviews here, on Amazon (and through Home Depot, who also sells this brand), tended to be favorable, but there where a few really negative comments, resulting in lower ratings. I read them all and saw a common thread: The problems were related to quality control and end-user ignorance. The ignorance I could do nothing about, and had to dismiss a considerable percentage of those comments which stemmed from that issue. The quality control issues also seemed to have a common thread: poorly fitting this or that... these things tend to lead back to the end-user and either naiveté, inexperience, ignorance or some combination of all three. Only a few reviews actually had component failure and those seemed to be satisfactorily resolved. One reviewer indicated an oil leak developed after the warranty was out, but the seller was working with him on that.Here's my experience: Ordered Thursday afternoon. Delivered Tuesday evening. Set up (30-45 minutes), start up (recoil) and run. Charged house batteries for two hours, turned off and went to bed. Woke up next morning, electric start, run, charge batteries (and run whole house) until ready for work.... shut down, come in and write review at work (on my break - no internet at home). It starts really easily (on LPG - I haven't tried gasoline yet, but have that in case one of my smaller LPG tanks runs out), runs quietly enough that the rain on my roof was louder than the generator. I may need to adjust the engine governor, as I get an overspeed indication on my inverter. Otherwise it performs like a champ!C'mon, people... look at the big picture: you're paying rock-bottom price for a unit assembled in China by workers who typically make less in a week than many of us make in an hour. Let's fairly assess the value of the unit:1) The engine is a Honda 'clone', making 7 hp. It was probably reverse engineered in much the same manner as Ural motorcycles were reverse engineered from 1940s era BMWs. There's no R&D. There's no search for tiny modifications which will result in minor improvements. There's no re-tooling for newer versions and none of the intellectual overhead Honda has, but the engine is based upon a design which we know to work. Even with good maintenance, this engine will not likely last as long as the Honda upon which it was based, but at 1/3 the cost (or less) it can be replaced when needed (and Amazon sells the replacement engine!)2) This is a dual fuel generator set, from the factory... no messy modifications. It is warranted for 2 years. If you modify (or purchase) a Honda generator retrofitted for use with LPG, you'll find that Honda will not honor the warranty on their product.3) Noise level? I read reviews where people were complaining about how loud this unit is! I fired mine up and my wife didn't even know it was going! Go and listen to other generators before you complain that this one is loud! Compared to a Honda EU3000iS (MSRP: $1900+), this unit is louder, but is still not loud.Really.... if you want an analogy, buying this generator is like purchasing a base model Ford or Chevy and then complaining that it doesn't have fit and finish or run like a Mercedes or a Porsche. You have to look at it realistically. My Dad always said "You can't drink champagne on a beer pocketbook".While this may be a one star Mercedes, it's a five star Ford!Right now, this little guy IS my primary source of power, and it's looking very good. I'll update as things progress.UPDATE: I've now had this little jewel charging my batteries for over a month. It has NEVER failed to start. I've had three really minor issues... and two can be chalked up to operator error.1) I have begun running the generator on gasoline, instead of LPG, because gas is actually cheaper than propane, right now. This little guy can run my refrigerator, freezer, well pump, washing machine and some lights (as well as other small appliances - TV, DVD player, etc) AND charge my batteries.... some of these things run simultaneously. It runs a looooonng time on a tank of fuel. The little fuel gauge on the tank, however, doesn't always work right.2) Speaking of running all these things - I had it wired to run 120 volts off one leg of the 30 amp/240 volt outlet. The breaker kept popping. I then changed it to run off the 20 amp 120 volt outlet, and all is well with the world. Operator error.3) I have (he said, embarrassed) had the opportunity to "test" the low oil shut-down. Needless to say, it works. Operator error.... again.SECOND UPDATE: The generator has been running every day since its arrival. Never a problem starting on either gasoline or LPG. One issue I've begun to notice, though: Since gasoline is currently still cheaper than LPG, that has been my fuel of choice; the issue I've noticed may - and may not - be related to running on gas. After the number of hours this has run (I estimate around 200 - no hour meter [note to DuroMax: a cheap hour meter might be a good idea for the next incarnation of this set]), the engine has now "broken in" and tends to run a little fast. As a result, the output shows "overspeed" on my inverter. I confirmed this by choking it down, a bit, and the error signal went away. I'll need to look at adjusting the run speed on the engine. Otherwise, it keeps chugging along! The Little Generator that Could!
Top critical review
1,476 people found this helpful
WATCH OUT: The warranty is deceptively misleading
By DPK on Reviewed in the United States on August 29, 2018
When it worked, the generator was great. I bought this specifically because it runs on both propane and gasoline, and had intended to only use it on propane. It worked fine the first couple of times, and then the engine stopped turning over. I could hear propane moving, and could also smell it coming out, and you could see the shadow of the vapors coming out of the air filter. Having seen when I bought it that it had a 3 year warranty, my confidence was high that things would all work out. I emailed their customer service (who generally takes 2-3 days to respond) and explained the problem. They instructed me on some troubleshooting, which I did, and they concluded that it was the regulator that needed to be replaced. They emailed me and said that only the parts were under warranty, and that I would be responsible for the cost of having the part shipped to me, and asked me to call to take care of it. Not being a small engine mechanic myself, I was immediately concerned. Did they expect me to replace this myself? (yes, yes they did) I also could not believe that they expected me to pay for the shipping of the part under their warranty. Prior to calling I did some looking around online to verify that the warranty was indeed this bad. It is. But what was more disconcerting is that while looking on THEIR site, the very first review of this generator is as follows: "Got this generator last week. Propane doesn't work. Can hear a hissing sound of propane coming from down by pressure release valve or carburetor. You can also see the vapors coming out." This was my exact problem! So I call and talk with customer service guy and explain all of my concerns. He is completely scripted. The conversation from his end could be described as disingenuously over-cheery, while conspicuously disinterested and unsympathetic. I would be surprised if there were more than 10 words strung together that didn't come straight from a laminated script. When I gave him my credit card number to pay for the shipping he said, "Now unfortunately it appears that the part is on a backorder, and we won't be able to ship it until October 3rd (this was the end of August)" I say "Wait... What???" He says "Yeah, and normally we wouldn't charge you for the shipping until we sent the part, but because it's more than 30 days away, we're going to need to settle (the script's less confrontational word for "charge") today, otherwise when it goes more than 30 days without being paid for the system will cancel the order." The word "backorder" makes me leery, especially if it's more than a week or 2 because in my experience it can also be synonymous with "we don't know when it will be here, but this will give you really low expectations that will be easier to deal with if things don't go as we hope." I paid the fee, so we'll see what happens, but this was such a disappointing experience. The shipping wasn't very much, but by putting it on me for their faulty part seems ridiculous. I will never buy another Duromax product again. Unreliable and unsupportive.

Sort by:
Filter by:
By -
Verified Amazon Purchase
Vine Customer Review of Free Product
Sorry, no reviews match your current selections.
Try clearing or changing some filters.Show all reviews
Show more reviews


people found this helpful
By -
Verified Amazon Purchase
Vine Customer Review of Free Product