The Generac GP5500 5939 is part of the generator
test program at Consumer Reports. In our lab tests, generator
models like the GP5500 5939 are rated on multiple criteria, such as those listed below.
How much wattage models delivered and how well they handled surges in power demand over various loads.
A generator's ability to deliver power smoothly, with consistent voltage.
Measured at 23 and 50 feet from the generator. We recommend hearing protection for standing close by the unit while it's running.
Features & Specs - Generac GP5500 5939
Claimed output (watts) Maximum wattage for continuous operation, as per the manufacturer.
Claimed output (watts)
Fuel type Gasoline, diesel fuel, propane, or (stationary models only) natural gas.
Weight (lbs.) The generator’s weight, to the nearest pound, when fully fueled. (Propane tanks are separate, and natural-gas models are fueled externally.) Weight for stationary models, which stay where installed, is "NA," for not applicable.
Fuel shutoff Lets you draw gas from the fuel system to keep it from leaking, or from fouling parts if it degrades during storage.
Low-oil shutoff Turns off the engine if the oil level is low, preventing damage.
Electric start Lets you start the engine with a switch or pushbutton rather than a pull cord.
Fuel gauge Indicates how much fuel is in a portable generator's tank.
I use this generator for whole house power when the power goes out. Bought it just before hurricane Isabel totaled the grid here in VA. Electricity was out for 11 days. This generator has worked great for over 10 years. Starts first or second pull. I have run my 40 inch flat panel and computer array with no problems. This has been a real workhorse, Bought at a very good price in 2003.
How long have you owned it:
More than six months
Yes, I would recommend this to a friend.
from Oklahoma City, OK
(2 of 2 customers found this review helpful)
Handles The Load
I loved this generator for great load handling. Started changing my mind after the hour meter quit at about 10 hours of use. At 20 hours of use the recoil starting mechanism failed. I took it apart and found shattered plastic parts. This is a big generator with an equally large engine. Starting requires some serious pull on the rope. Plastic parts under such a load is rediculous. I've owned Generacs in the past that provided many years of service. Obviously they have dropped the ball on quality. This unit was returned and I will not own another.
How long have you owned it:
No, I would not recommend this to a friend.
By Big Jim
from Hampton Bays, NY
(1 of 1 customers found this review helpful)
Ran like a champ
Consistent Power Supply
Powers What You Need
Starts First Pull
Power Outage Power Tools
will certainly weather any storm. well worth the money.