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(More customer reviews)PowerMax XP4400E 4,400 Watt 6.5 HP OHV Gas Powered Generator With Wheel Kit And Electric Start (CARB Compliant)
We live in Southern Louisiana, smack-dab in the middle of hurricane alley, and decided to purchase a backup generator to deal with power outages in the event of an emergency. I wanted sufficient power capacity to run our refrigerator, a small portable AC, a few lights, a small TV, charge our cell-phones, and occasionally charge laptop batteries. We figured that around 3000 continuous watts and 4000 surge watts would be sufficient for our needs.
There are several generators sold by the hardware chains (Lowe's, Home Depot) that fit this description, but they're priced around $600 - $700. After some research on the internet, we decided that the PowerMax XP4400 would match our needs, and suit our budget. Just before purchasing it, on an impulse I decided to get the model with the battery powered electric starter, instead of the one that has a rip-cord. Our purchase price (on eBay - from MaxTool - the same company selling them on Amazon) was $469.99, including a cover for the generator, and shipping.
The generator was shipped Fedex Ground and took about a week to arrive. The external cardboard box showed signs of rough handling during transportation, but the generator was well packed in foam, and not damaged during shipping. The whole box weighs about 130 lbs, and it helped me considerably that the Fedex driver wheeled it right into our garage. Unpacking took about 20 minutes. There are a couple of shipping braces that support the engine during shipment that take a little while to remove.
The first thing I did was to flip the generator upside-down on a mat to install the wheel-kit. There are tools provided with the generator to get the wheels and handles on. As shipped, the tires were sufficiently inflated to bear the weight of the generator.
After flipping the generator right way up again, I filled it with SAE30 oil. We live in a relatively warm climate, so I chose 10W30. If you use generator oil, make sure you chose oil made for a four-stroke engine. The oil-fill tube is awkwardly placed - I have a funnel with a tube at the end out it, and found that I had to use it to avoid spilling oil. It takes about 20 oz of oil. To condition the engine, I would suggest changing the oil after 6 hours of run-time, then twice after 8 hours, and every 20 - 30 hours beyond that.
After filling it with gas (there is a mesh fuel-filter underneath the gas cap, I turned the fuel valve on, and started the generator. The engine turned right away, but wouldn't start. This turned out to be an error on my part - it dark, and what I thought was the fully-off position for the choke was instead the fully-on position. After moving the choke to the correct position(fully-off), the engine started up. It is pretty smoky and sputters until the choke is opened. After that it runs very smoothly,with no visible smoke in the exhaust. I don't know what the noise level is, but it is sufficiently low that it doesn't bother me when the generator is running outside the house, and I am on the inside.
The control panel has two 120V outlets (20 Amp), and one 30 Amp outlet that is switchable between 120V and 240V. There is also a 12V outlet to charge a car battery. There is a circuit breaker and a voltmeter. During my initial tests, between 60 watts and 2400 watts of load the voltage stayed at 115 volts, and didn't drop. I haven't tested higher loads yet.
So far, we are quite satisfied. The PowerMax XP4400E is built well, works well, and is less polluting that more expensive Honda, Subaru, and Yamaha powered units sold at the hardware chains.
And a little tip - for any small engine that is run infrequently. Make sure you mix the fuel with some anti-oxidant such as Stabil before putting it in the tank. Gas mixed with anti-oxidant should last for about one year.
Six month update (August 2009) - the generator still works like a champ. Some of the bolts worked themselves loose through the vibrations, so I've tightened them. No other major problems.
Eighteen month update (September 2010) - no problems yet. But I finally got around to installing a transfer switch to connect the generator to the main breaker panel in our house. I 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. Reliance Controls makes a pre-wired six-circuit transfer switch (31406/30406) that is perfect for this generator and is available from Amazon. Took me about 3 hours to install, 2 of which were spent flush-mounting it in the drywall.
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DuroMax XP4400E 4,400 Watt 7.0 HP OHV 4-Cycle Gas Powered Portable Generator With Wheel Kit And Electric Start
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