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DuroMax Duel Fuel 4,400 Watt Hybrid Propane/ Gasoline Portable Generator

Overall Rating Rating 4.2  |  6 reviews  |  Write a review
$644.99 Add to cart to see price
Item #: 14912061
    Stay prepared for emergencies with this gasoline portable generator. With its dual-fuel system, this generator offers easy adaptability. Isolated motor mounts allow for quiet operation. The steel frame of this generator ensures durability. ...more

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    This DuroMax XP4400EH generator has a duel fuel system that operates on either standard gasoline or cleane-burning liquid propane which can more than double its generator's run time. This versatile generator features a heavy-duty steel frame with isolated motor mounts for reduced noise and vibration.

    • Clean-running propane will not gum up or foul the carburetor for quick and reliable starts every time
    • Flexible line allows for connecting to tanks of any size
    • Runs on gasoline or propane
    • Heavy-duty steel frame
    • Four point fully isolated motor mounts reduce noise and vibration
    • Wheel kit with front handle
    • Full power panel with engine shutoff switch, volt meter, circuit breaker
    • Two (2) fully protected 120-volt outlets, one (1) 120/240-volt twist-lock outlet
    • Run time: 20 hours (propane), 8 hours (gasoline)
    • Steel 4 gallon fuel tank with ez-read gauge
    • Low oil shut-off
    • Super quiet muffler
    • Idle control holds RPM at a constant level for fuel savings and noise reduction

    • Specifications
    • Max AC output: 4400 watts
    • Rated AC output: 3500 watts
    • Current: 120/240-volts AC, 12-volts DC
    • Two (2) 120-volt 20A 3-prong outlets (htandard household plug)
    • One (1) 120/240-volts 30A twist lock (NEMA L14-30 3 pole 4 wire)
    • EPA approved engine
    • Super quiet exhaust with built-in spark arrestor
    • Electric key and EZ-Pull recoil start
    • DuroStar 7.0 horsepower air-cooled engine
    • Fuel Tank Capacity: 4 gallons
    • Decibel: 69 dBA
    • Gasoline run-time: 8.0 hrs ( 50-percent of max output)
    • Propane run-time: 20.0 hours (50-percent max output)
    • All-terrain never-flat tires
    • Flip-up stow away handles
    • Includes one (1) spark plug wrench

    This Generator Can Not Be Shipped to California
See description
1 year Limited Distributor
See description
Model No:
Brand: Duromax


  • Wattage
    4000-6000 Watts
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Showing 4 most helpful reviews on this product.

  • 5 Stars 2
  • 4 Stars 3
  • 3 Stars 1
  • 2 Stars 0
  • 1 Stars 0
  • packaged better would make a better product

    the bad =I ordered this months ago and two weeks after the order, not hearing anything, emailed Overstock only to find out they did not have any. Guess they were never going to say anything. They refunded my money. Unfortunately, I had passed up buying elsewhere and now could not get one. In the end I was given 10% off after 5/6 emails with cutomer service uppers. Not a bad deal, but could have used it during the time I did not have it, and worst of all I could not understand how an "online" business could not track stock better. It came in about a week, UPS ground. Arrived on a wet day and had to sit outside. That proved not to be a prob though. However, somewhere along the line the box had picked up a crushed/ripped corner and there was different tape holding it closed; not a good sign. I assembled the unit as per instructions - just wheels, handles and removing some bracing. Hooked the battery to a charger for an hour, added oil and attached the line to my BBQ propane tank. It fired up on the second crank and ran smooth and quiet. Plugged in a shop vac and it worked fine. I was pretty pleased. A closer look though revealed that apparently the unit had been dropped on its end = the crushed box. Since it just has some soft 1/2" foam surrounding it the frame also had a serious dent to one end and the motor plate was dented. Not biggies - but, the air filter housing was also pushed back, collapsing the steel housing around where it fits to the carb and cracking the inner and outer plastic housing and bending the steel support on the bottom. Luckily no damage to the carb. I did my best to straighten out the housing, but either everything was shifted somewhat, or poorly designed, because there is no way to simply unhook the filter casing and remove to get to the filters for cleaning. It is right up against the steel frame. Since I am not going to use this except for emergency use it should not be a big prob - wont require many cleanings. Better packaging could prevent this though - and of course the idiots who handle this stuff. It is not something that can be easily repacked to send back, so I will keep it. I have emailed manuf to see if they will send the two parts that were broken, but I can't get them on in one piece anyway. Overall quality is Ok...typical import, nuts and bolts not real tight, cheap metal quality etc. But, for light use it fits the bill and the price was right. I chose this model due its ability to run on clean propane - leaves no residue in the carb or tank like gas, but can still run on gas if needed. I saw a Generac the other day in a store, they have an all propane model, quality is way ahead of this = much more solid visibly heavier parts, better powder coating on the frame. But, if you are going to use rarely/emergent than this should do the trick and this is a better price than direct from Duromax.

    • How did the color on site compare with the actual product? same
    • Please tell us about the quality of the product. not bad, but essentially typical chinese import
    • How accurate was the on site description of the product? accurate
  • Great affordable generator

    Ordered this Generator from Overstock and was delivered instantly. Unfortunately it was a bit damaged, pretty obviously during transport. Contacted Overstock and asked for replacement parts as the impacted parts could be easily replaced. Overstock bent backwards and went above & beyond with their customer service. Instead of sending the few cheap replacement parts they apologized and sent an entire new generator which also arrived quickly. The Overstock CSRs were very polite and helpful sorting things out via chat and email. It didn’t need a single phone call. Some minimal assembly is needed to put the wheel kit on the generator - instructions and the tools provided are sufficient to get this done. I ordered this to be prepared for the next “Sandy”. I gave it a dry run, hooking up my the heating system of a single 1 family house and the fridge. The generator took these 2 without a blink, no increase in RPMs 3500Watts are plenty. Tried it on a propane tank. It started instantly with the electric starter making it easy to use. Just following the instruction for the first time start, anyone should be able to handle it. While Overstock is the seller, the phone number for potential troubleshooting that’s listed in the manual leads to Maxtools which gives some extra peace of mind, that this product is backed by a company who answers the phone and has knowledgeable people regarding the product. In the back of the manual is a spare parts list. As for the price, you could get the same Watts for a bit less money, but the electric starter, included wheel kit, and the fact that this is a hybrid and runs on gasoline or propane is in my eyes well worth every penny. I would buy it again in a heartbeat through Overstock, especially after the excellent custome service experience.

  • generator duromax duel fuel

    some minor things could have been better, but did arrive fast and unit started up first time

    • How did the color on site compare with the actual product? same
    • Please tell us about the quality of the product. paint was chipping off, one wheel didn't go on all the way, a wire was broken
    • How accurate was the on site description of the product? good
  • Runs great

    Had a hard time getting it to start the first time using propane. Turns out I had to increase air intake b removing the air cleaner. As soon as I did, it started right up. once it warms up, you can put the air cleaner back on. I like this because of the propane. Gas turns bad in a few months, but propane is propane for ever. Typically, people go to use a generator, and the gas has turned so it needs to be drained and cleaned. The propane prevents that because propane does not break down. keep the until clean, and dry and it should start every time. I am able to place this in the bed of my truck and use my RV propane bottles to run the unit. I've had many people ask about this generator because of the propane. I don't intend to use gas except for a last resort.

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    Received it quickly went together easy started right up


    JOHNNYJACK55 from QUEENS NY, Nov 22, 2014

  • Works Great, nice to have options

    Purchased this after Sandy last year, as I had burned out my previous generator. This worked very well...but a few issues to look out for. 1 - I had this set up and ready to go but never tried it out before the recent ice storms that knocked out power across this region for a few days. My electronic start didn't work. Now I have to figure out if the battery is dead or if there is another issue. Good news, always started by the 3rd pull on the propane (and I am female and no powerhouse by any means). 2 - Because it was so cold, the propane tanks iced over and the generator had issues running through the full tank. During the day, I could get about 8 hours use on the 20lb propane tank, probably running about 50% load, but at night when it was very cold, i was getting 4 hours at best before the genny had issues sucking fuel out of the tank. I would assume spring, summer or fall use would be much better. Out of desperation day one I had to 'exchange' 2 tanks that certainly had a decent amount gas left in them, because I couldn't figure out what was going on. I figured it out by the 2nd day when we finally got power, and was able to get the tanks topped off rather than wasting money on an exchange. Next go around I'm going to need to figure out how to keep the tanks warm so the gas is better able to get to the genny in the cold.


    hugeoverstockfan from Pennsylvania, Feb 16, 2014

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Product Q&A

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Why did you choose this product? Overstock on Mar 27, 2015
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Competitive price and good ratings Andrea J. on Mar 27, 2015
Because a storm is coming! Thanks!  on Apr 13, 2015

You state 20 hours on propane, how much propane? What size tank? Smoke on Jan 15, 2015
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Hello, Smoke. This generator boasts 20 hours of run time on four gallons of propane. Have a great day! overstockcustomercare1 on Jan 19, 2015

Can you tell me what the weight is? akaritavil on Oct 26, 2014
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Hello akaritavil, this item weighs 128 pounds. Thank you for shopping with us! Terri D. overstockcustomercare2 on Oct 28, 2014

The description says that it's a quiet run I'm trying to find out if its like the Honda generators we take the generator to Talladega for the NASCAR race and you have to turn generator off at 1100 if this is a quiet run I can run it all night long mariap01 on Aug 18, 2014
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Hello mariap01, this is a quiet-running machine, very similar to those offered by Honda. Have a great day! overstockcustomercare1 on Aug 27, 2014

does this unit have a remote start option? naturetopower on Apr 14, 2014
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Hello naturetopower, this does not have remote start. Have a great day! overstockcustomercare1 on Apr 22, 2014

Will product run on natural gas, or will I need to hook up a separate adapter. If that's the case, I'll just get the basic unit and buy my own 3- way adapter kit. clondike on Aug 6, 2013
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Thank you for contacting us clondike. The unit is for propane and gasoline. If you wanted to modify the product warranty will be void. Please let us know if you have any further questions. overstockcustomercare1 on Aug 12, 2013

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Hello robert3410, The serial number would be engraved on the engine. Thank you for shopping with us! overstockcustomercare1 on Jul 23, 2013

Received the Duromax 4400EH last night. All looks good but cannot locate "Owners Manual". Can you tell where it is hidden or must I download one off the internet. Thanks Paul Gill jpgill on May 10, 2013
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Hello jpgill. Thank you for your inquiry; you will be contacted by Customer Care. overstockcustomercare1 on May 15, 2013

Is this unit has Auto Idle control? hnguyen51 on Jan 21, 2013
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Thanks for your interest, No unfortunately this generator does not have a a auto idle control function. overstockcustomercare1 on Jan 22, 2013

Can I get converter to natural gas ? wojtek7508 on Jan 19, 2013
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Thanks for your interest, No unfortunately this can not be converted to natural gas. overstockcustomercare1 on Jan 22, 2013

Does the genrator come with a battery and propane connection... Thanks Dennis dennis201 on Jan 19, 2013
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Yes this generator does come with a battery. overstockcustomercare1 on Jan 30, 2013

Why does it say 3 pole -it should be single phase four wire maryjean123 on Jan 11, 2013
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The description is provided by the manufacturer. I do not know why they chose to list it that way. overstockcustomercare1 on Jan 11, 2013

Is liquid propane safer than gasoline? maryjean123 on Jan 11, 2013
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Propane and natural gas have proven to be safer than gasoline overstockcustomercare1 on Jan 11, 2013

what is a transfer switch? it it connected to your breaker box maryjean123 on Jan 11, 2013
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Transfer switch to connect the generator to the main breaker panel house. Recommend this highly - it is far better than running cords all over the place, or back-feeding the main panel, which is illegal and very dangerous for linesman working on the utility company's lines. overstockcustomercare1 on Jan 11, 2013

Is liquid propane the same as the propane you use with your food grill? maryjean123 on Jan 11, 2013
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Yes, it converts to gas when mixed with air. overstockcustomercare1 on Jan 11, 2013

Can this generator be tied into a house power box? dhanzon06 on Nov 1, 2012
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You would need to have a transfer switch installed. overstockcustomercare1 on Nov 1, 2012

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