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The Generac ix800 - 800 watt portable inverter generator is available for purchase today.

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Generac iX800 - 800 Watt Portable Inverter Generator

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Generac Electric Generators and AccessoriesModel: 5791
(Based on expert analysis, manufacturer ratings and customer reviews)

3.3 out of 53.3 out of 53.3 out of 53.3 out of 53.3 out of 5
20 Reviews
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  • Features
  • Specs
  • 6
    Q&A 
  • 20
    Reviews
  • Articles
  • Shipping
  • Accessories
Grade

Style
Run Watts
800
Rated Watts
Surge Watts
850
Starting Watts
Fuel
Engine
Inverter Technology
Provides safe power for computers & sensitive electronics

850 Max Starting Watts
Rated at 800 watts for continuous operation

Compact Size, Weighs Only 27.5 Lbs.
Up to 40% lighter than a standard generator of equal watts
Built-In handle makes this inverter easy to carry

Fully Enclosed Case
Designed for quiet operation

FlexPower™ Provides For 2 Modes Of Operation
High mode for large loads or battery charging
Eco mode to save fuel and reduce noise

Electronic Overload Protection
Provides circuit breaker protection to protect your electronics

Low-Oil Shutdown
Prevents possible engine damage

LED Lights
Provides at-a-glance status right on the control panel

Non-CARB Compliant - Not For Sale In CA
Engine
Engine Brand
Generac
Starting System
Recoil Start
CC
38 CC
Consumer Engine Warranty
2 Years
Commercial Engine Warranty
180 Days
Low Oil Alert/Shutdown
Yes
Cast Iron Sleeve
Yes
Product Specs
Voltage
120 Single-Phase
Frequency
60 Hertz
Alternator
Inverter
Auto Voltage Regulation
Yes
Surge Watts
850 Watts
Rated Watts
800 Watts
Fuel Type
Gasoline
Rated Amps
7 @ 120 Volts (Single Phase) Amps
Tank Size
0.5 Gallons
Run Time @ 50% Load
3.6 Hours
Fuel Tank Material
Plastic
Fuel Gauge
No
Idle Control
Yes
Hour Meter
No
Voltage Meter
No
Lifting Eye
No
Plugs
NEMA 5-15R - Wall-Type
1
Overview
Made in USA
No
Weight
27.5 Pounds
Product Length
18 Inches
Product Width
10 Inches
Product Height
15 Inches
Consumer Warranty
2 Years
Commercial Warranty
180 Days
UPC
696471057911
Model
5791
Download Documents


Outlets
NEMA 5-15R (Wall-Type)
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  6 Questions
Q: I'm looking at the Generac iX800 but concerned that it won't run my blow dryer (dog shows) Metro Air Force Commander Vari-speed. The blower says it is 4 horse power, & takes 11.5 amps & 900 watts. We'll only run the blower for about 5 minutes at a time for maybe a total of 1 hr. during the morning of a show. We want it to be small, inexpensive, & light weight to carry to the outside grooming spot. Will the Generac work or what do you recommend? Thanks.
by Gail Kingrey from Colorado on July 15, 2012

A: This model will in fact not work for you. You will need to look towards a unit off approximately twice the size. Being that this unit only powers 800 watts, you will not have enough power to even start the dryer. If you seek a small dependable unit, you might look towards the iX1600 or the iX2000. Both would be suitable to meet your needs.
by Jared, Product Expert
Q: Does this generac 5791 model has 220 voltage outlet? Tnx
by Angelito from California on March 09, 2012

A: None of the inverter generators we offer have 240V output unless you look at the Yamaha EF6300iSDE or the Honda EU6500iSAC models.
by Jared, Product Expert
Q: Do it run quiet I need something that I can take out to a park and it runs very quiet. I just want to no is it noise free.
by Linda from Florida on October 02, 2011

A: Unfortunately, not all generator manufacturers provide their noise levels. Generac does not provide the noise level on this model.

If you are looking for the most quiet Honda has been known to be the most quiet. The Honda EU1000i is rated at 59dBA which is similar to the sound of normal speech.

EU1000i
by Jared, Product Expert
Q: I was watching how to take care and maintain of generators and I'm confused when he said you can't wash it down with a hose. My concern than is... it's out in the rain...I just went through a flood and I have a 1/2 and 1/4 horsepower sump pump...just want to hook them up.
by Tina Kepp from Pennsylvania on September 24, 2011

A: No portable generators are designed for use in the rain as they are not water tight and electricity and water do not mix well together. If use in the rain is required then a roof must be placed over the unit to protect it while keeping 3 sides exposed for proper air cooling of the unit.

by Jared, Product Expert
Q: Can the generac ix2000 be hooked together with another ix2000 to increase to 4000 watts? There other models like Honda and Kipor that can be.
by Ken Kercher from Wyoming on January 23, 2011

A: The Generac inverter generators cannot be paralleled together. There is no connection on the unit to do this.
by Jared, Product Expert
Q: What is the noise level of the Generac IX2000? Why don't they list this info in the owners manual?
by Fletcher Pastore from Virginia on January 23, 2011

A: Thank you for your inquiry. Unfortunately, Generac, like many other generator manufacturers, do not publish the decibel ratings for their generators. This unit does come equipped with a Low Tone Muffler and the internal components are enclosed for Quiet Operation but I do not have a decibel number to give you. Currently, there are no industry standards or requirements for generator manufacturers to follow when testing their generators for noise. Due to this, manufacturers can test the noise level under any conditions they choose and, therefore, the results are not very reliable as each company will test under conditions that are favorable to their products.
by Jared, Product Expert
Generac 5791 Reviews & Ratings
Overall Rating
Features
3/5
Quality
3/5
Performance
3/5
Value
3/5
Overall
3.3 out of 53.3 out of 53.3 out of 53.3 out of 53.3 out of 5
Pros
Light Weight (1)
Cons
Durability (1)
Unreliable (1)
56% of respondents would recommend this product to a friend
20 Reviews  Sort by 
 
Jared, the Portable Generator Expert
Electric Generator Expert

Product Expert
Total Reviews
103 Reviews
Total Helpful Votes
8922 Helpful Votes
Electric Generators Direct Recommended

The Generac iX800 is ideal for camping and other recreational events.

This generator may not be as quiet as the Honda or Yamaha but will give you enough power to charge a laptop and run a few lights.

If your looking for an inexpensive inverter generator that can run a few small items then this is a good recommendation.



Jared Recommends This Model
Was this review helpful?
6016
Denis K.
Colgate, WI
Purchased from Electric Generators Direct
Purchased 3/29/16
Most Helpful Positive Review
REVIEWED
APR.
21
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Great Machine
This is exactly what I needed. It does everything I bought it for. Could not be happier.
Denis Recommends This Generac Product
Was this review helpful?
30
Edwin
Purchased from Electric Generators Direct
Purchased 3/22/11
Total Reviews
2 Reviews
Total Helpful Votes
12 Helpful Votes
Most Helpful Critical Review
REVIEWED
MAY.
04
2016
2 out of 52 out of 52 out of 52 out of 52 out of 5
Ix800
I have owned the IX800 for about 5 years with very little usage. It was purchased new and is now well out of warranty. In the length of time I have had it I probably have not run a full tank of fuel through it. I use fresh fuel each time I crank it and drain all remaining fuel from it after each use. Now I can not get the engine to crank or even sputter. The diagnosis I have received is that a faulty overload protection system is grounding the ignition and will not allow the engine to crank... more
Manufacturer Response
Brand Rep
Edwin,
We are sorry to learn of your frustration. Please know that replacing the unit with fresh fuel is not the only requirement for long term storage. To ensure the long term quality of your personal unit, it is important to prevent gum deposits from forming in essential fuel system parts such as the carburetor, fuel hose or tank when the unit is stored. Also, experience indicates that alcohol-blended fuels (i.e. gasohol, ethanol or methanol) can attract moisture, which leads to separation and formation of acids. These acids can damage the fuel system of an engine while in storage.

If the unit is not going to be used for more than six (6) months at a time, the fuel should be removed and the unit should run until the engine stops from a lack of fuel. Alternatively, the valve on the carburetor bowl can be opened to allow gasoline to drain down the tube into a receptacle; discard appropriately. Also, be sure to close the valve once the gasoline has drained.

Additionally, we recommend draining oil from the crankcase while the engine is still warm and refilling the unit with an oil grade that is recommended in your unit's owner's manual. Removing the spark plugs and pouring about 0.5 oz. of engine oil into the unit's cylinders is also recommended. Cover the spark plug hole with a rag, pull the starting rope several times to coat the cylinder walls with engine oil and install/tighten the spark plug. Lastly, storing the unit in a clean, dry place after cleaning its outer surfaces is recommended to extend the unit's life.

Failing to run the unit periodically or follow these storage recommendations can negatively effect the unit's ability to operate. If you would like to discuss storage recommendations or your personal experience in further detail, do not hesitate to contact us directly at 888-GENERAC (436-3722). We are available 24/7 and would be happy to provide any additional insight that you desire.
more
Was this review helpful?
71
Eugene B.
Delanson, NY
Purchased from Electric Generators Direct
Purchased 8/8/16
REVIEWED
SEP.
19
2016
4 out of 54 out of 54 out of 54 out of 54 out of 5
Generac Ix800
Used to charge batteries when camping. Worked well and quiet.
Eugene Recommends This Generac Product
Was this review helpful?
10
Derek B.
Mickleton, NJ
Purchased from Electric Generators Direct
Purchased 9/24/16
REVIEWED
OCT.
17
2016
1 out of 51 out of 51 out of 51 out of 51 out of 5
Junk, Broke In One Use
Died after the first use. Seller would not take return. Off to Generac it went.
Jared, the Portable Generator Expert
Product Expert
Derek,
Sorry to hear about the issues you're having.Hopefully your local Generac service dealer will have the problem resolved quickly.
more
Manufacturer Response
Brand Rep
Derek,
We are sorry to learn of the issues you've experienced. So that we can learn more about the troubleshooting steps you were able to perform, discuss the unit's warranty coverage and identify servicing options in your local area, please contact us directly at 888-GENERAC (436-3722) at your earliest convenience.
more
Was this review helpful?
00
Thomas L.
Lancaster, OH
Purchased from Electric Generators Direct
Purchased 7/8/16
REVIEWED
AUG.
01
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Great Purchase
Works as advertised.
Thomas Recommends This Generac Product
Was this review helpful?
00
Scott L.
Cedar Rapids, IA
Purchased from Electric Generators Direct
Purchased 3/13/11
Total Helpful Votes
31 Helpful Votes
REVIEWED
AUG.
06
2014
2 out of 52 out of 52 out of 52 out of 52 out of 5
Sad
Used mine 5 times. Possibly 20 hours total. Inverter died. New Inverter $500+ Sorry Generac will sell the until for $300+ and the inverter is $500+ I guess I've purchased my last Generac
Pros: Light Weight
Cons: Unreliable, Durability
Was this review helpful?
312
Ken
Camas, WA
Purchased from Electric Generators Direct
Purchased 2/29/12
Total Helpful Votes
28 Helpful Votes
REVIEWED
MAR.
21
2012
1 out of 51 out of 51 out of 51 out of 51 out of 5
Generac Ix800 Review
My Generac iX800 sucks but I guess you get what you pay for. Its not as it was advertised, it is very loud and it vibrates so bad that it dances across the floor and the rpm surges up and down regardless whether there is a load or no load. I just get the runaround from Generac and cannot find any dealers in Portland that can repair it or return it for warranty, I will probably just sell it on Craigs List at a loss and get a Honda and tell everyone to stay away from these pieces of crap.
Was this review helpful?
281
Becky R.
Bloomfield, CT
Purchased from Electric Generators Direct
Purchased 8/25/11
Total Reviews
2 Reviews
Total Helpful Votes
38 Helpful Votes
REVIEWED
DEC.
28
2011
1 out of 51 out of 51 out of 51 out of 51 out of 5
Defected Generator
I was very excited about the new generator. However, when we experience the recent snow storm in Connecticut the generator only worked for two days. I was panic and think that I bought a defective generator. I contacted the company through email no-one ever contacted me. I feel that I have been given a product that did not work up to its potential. What can you do to help me? I am disappointed. If another storm comes I will not have a generator. Disappointed Customer!
Was this review helpful?
261
Charles
Total Helpful Votes
20 Helpful Votes
REVIEWED
JUN.
06
2012
3 out of 53 out of 53 out of 53 out of 53 out of 5
Generator
I selected & purchased the Generac ix800 because of 1)price, 2)size, 3)weight, and Generac's reputation. However, I am somewhat disappointed with it. Upon opening the box, I discovered a side plate cracked for no apparent reason (took 2 months to get the part from the dealer). When I filled it up with gas, I found it to be extremely difficult as about half full gas will overflow on the generator (takes forever to fill it and not spill gas). I added oil, tightened the oil plug, pumped the... more
Was this review helpful?
200
Professional
Purchased from Electric Generators Direct
Purchased 6/11/12
Total Helpful Votes
22 Helpful Votes
REVIEWED
JUL.
24
2012
5 out of 55 out of 55 out of 55 out of 55 out of 5
90% Of The Honda, For 40% Of The Price
I have a lot of experience with the Honda EU1000i, owned by a previous employer. When it was time for me to buy I didn't want to spend $800 for the Honda and thought I would give this Generac a try. Overall I am pleased with the Generac, I've put about 40 hours on it so far. It starts and runs as well as the Honda, it's very similar in size and weight, and it's nearly as quiet. I think it is 90% equivalent to the Honda, for 40% of the price.

These are the issues that make up the 10%... more
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223
Gene
Houston, TX
REVIEWED
JUL.
31
2011
1 out of 51 out of 51 out of 51 out of 51 out of 5
Generac 800
Do your self a big favor........Save your money and buy a Honda. My generac 800 did not even last a day. The circuit board fried and the dealer gave me a 1600 and I paid the difference. Well there was no difference in the quality in this one either, lasted a whopping 2.5 hrs before it broke. Going to take it back to the dealer Monday AM and then buy a Honda. I knew the price was to good to be true.
Was this review helpful?
191
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