Generac GP3600
Generator. Specs from the manufacturer page (checked ).

The Generac GP3600 is a 3600 W portable generator with 4500 W starting watts, a 212cc OHV engine, and a 3.7 gal (14 L) gaseous fuel tank. It starts by recoil and lists a run time of 9.3 hours at 50% load.
Key features
- PowerRush Advanced Technology provides over 40% more starting capacity when starting electric motors
- COsense carbon monoxide protection
- Low-oil pressure shutdown protects the engine from damage
- Large-capacity steel fuel tank (3.7 gal / 14 L) with incorporated fuel gauge
- OHV engine with splash lubrication
- Recoil starting method
- Heavy-duty, never-flat wheels and fold-down handle
- Hardened steel tube cradle
What it is for
- Backup power during an outage
- Home projects
- Powering tools
Specifications
| Running watts | 3600 W |
|---|---|
| Peak / surge | 4500 W |
| Tank | 14 L (3.7 gal) |
| Run time at 50 % load | 9.3 h |
| CO shutoff | Yes |
| Weight | 47.6 kg (104.9 lb) |
| Dimensions | 61 × 57.05 × 54.15 cm (24.0 × 22.5 × 21.3 in) |
From the Generac page. Values the manufacturer does not publish are left out.
What is in the box
- Handle and Wheel Kit
Similar inverter & portable generators
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Westinghouse WGen3600cv
Westinghouse WGen3600DF
Westinghouse WGen3600DFc
Westinghouse WGen3600DFcv
Connection and wiring
Follow the diagrams in the Generac manual. Connecting to a home panel needs a transfer switch or interlock and a licensed electrician.
Error codes and troubleshooting
We found no error-code table in this manual. Its troubleshooting section is the reference.
FAQ
How long does the Generac GP3600 run on a tank?
The maker rates it at 9.3 hours at 50 % load (about 1,800 W) on a 3.7-gal tank. A light load such as a refrigerator and lights runs longer; a full load runs shorter.
Can the Generac GP3600 start a sump pump or well pump?
Starting surge matters more than running watts: this unit is rated 4500 W peak. That covers a typical 1/2 HP sump pump (about 2150 W to start). Use the calculator with your exact pump.