1. Introduction and Overview
The DuroMax XP4850EH is a user-friendly dual fuel portable generator designed to provide reliable power. It offers 4,850 starting watts and 3,850 running watts, capable of handling various loads from household appliances to power tools. Its Dual Fuel Technology allows operation on either standard gasoline or cleaner-burning liquid propane, offering flexibility in fuel choice. This robust unit is suitable for home backup, job sites, camping, and RV use.

Image 1.1: DuroMax XP4850EH Dual Fuel Portable Generator in operation.
2. Key Features
- Plenty of Power: 4,850 starting watts and 3,850 running watts for heavy loads.
- Dual Fuel Technology: Operates on gasoline or liquid propane for fuel flexibility.
- Powerful Engine: DuroMax 210cc OHV engine handles multiple jobs.
- MX2 Technology: Maximizes power from 120-volt receptacles, allowing simultaneous 120V and 240V operation or 120V only with full power, ideal for RVs.
- Fully Featured Power Panel: Includes (2) 120V household GFCI outlets, (1) 120/240V 30A twist lock outlet, voltmeter, and 12V DC charging posts.

Image 2.1: Overview of DuroMax XP4850EH generator highlighting key features like the 212cc engine and 4-gallon gas tank.

Image 2.2: Detailed view of the control panel with various outlets and controls.
3. Setup
3.1. Assembly
The generator requires some assembly upon arrival. This typically involves attaching the wheels, support feet, and handles. Ensure all bolts are securely tightened. Refer to the included manual for detailed diagrams and instructions.

Image 3.1: The generator with handles extended, demonstrating ease of transport.
3.2. Connecting the Battery
The generator battery is disconnected on arrival. Locate the negative battery cable and securely connect it to the negative battery terminal. Ensure the positive cable is already connected. Use the provided tools for tightening connections.
3.3. Adding Oil
The generator does not contain engine oil in the crankcase upon arrival. You must add the proper amount of 10W-30 conventional oil before starting the generator for the first time. Use the supplied oil funnel and hose to prevent spills. Check the oil level using the dipstick.
3.4. Connecting Propane
Connect the propane hose and regulator to the generator's propane inlet and to a propane tank. Ensure all connections are tight to prevent leaks. Verify the propane tank valve is closed before connecting.
4. Operating Instructions
4.1. Starting the Generator
- Ensure the main breaker is in the 'OFF' position.
- Turn the fuel valve to the 'ON' position (for gasoline) or open the propane tank valve (for propane).
- Close the choke lever (if starting cold).
- Press the engine start switch to the 'START' position. Release once the engine starts.
- Once the engine is running, gradually open the choke lever.
4.2. Stopping the Generator
- Disconnect all electrical loads from the generator.
- Turn the engine switch to the 'STOP' position.
- Close the fuel valve (for gasoline) or close the propane tank valve (for propane).
5. Maintenance
Regular maintenance is crucial for the longevity and optimal performance of your DuroMax generator. Refer to the full user manual for detailed maintenance schedules.
- Oil Change: Change the engine oil after the initial break-in period (e.g., 5 hours) and then according to the recommended schedule in the manual.
- Air Filter: Regularly inspect and clean the air filter. Replace if damaged.
- Spark Plug: Inspect, clean, and adjust the spark plug gap periodically. Replace the spark plug as recommended.
- Fuel Storage: When storing the generator, especially for extended periods, ensure the fuel system is properly drained or stabilized to prevent carburetor issues.
6. Troubleshooting
- Engine Not Starting: Ensure the fuel valve is open, the choke is set correctly (closed for cold start, open for warm start), and there is sufficient fuel and oil. Check battery connections for electric start.
- Electric Start Issues: Avoid holding the start button for more than 5 seconds. Allow 10 seconds between start attempts to prevent damage to the starter unit.
- Power Output Issues: Check the main breaker on the control panel. Ensure the correct voltage setting (120V or 120/240V) is selected for your application.
7. Specifications
| Specification | Value |
|---|---|
| Brand | DuroMax |
| Model Number | XP4850EH |
| Starting Wattage | 4850 Watts |
| Running Wattage | 3850 Watts |
| Fuel Type | Dual Fuel (Gasoline, Propane) |
| Engine Displacement | 212 Cubic Centimeters |
| Tank Volume | 4 Gallons |
| Runtime (Gasoline, 50% Load) | 10 hours |
| Runtime (Propane, 50% Load) | 9 hours |
| Item Weight | 122 Pounds |
| Item Dimensions L x W x H | 24"L x 17"W x 17"H |
| Total Power Outlets | 5 |
| Ignition System Type | Electric Start |

Image 7.1: Detailed wattage specifications for DuroMax XP4850EH on gasoline and propane.
8. Warranty & Support
The DuroMax XP4850EH generator comes with a 3-Year Warranty. For any support needs, please refer to the contact information provided in your product packaging or visit the official DuroMax website. DuroMax Power Equipment is committed to excellence in quality, reliability, and durability, offering a full product line and USA-based service team.





