Looking to power your welding projects on the go? Finding the best portable generator for welding can be a game-changer. It means you can tackle projects wherever the work takes you, without being tethered to a power outlet.
Weve put several of these generators through their paces, welding everything from simple repairs to more complex projects. So, what did we learn? Well cover the key features you need to consider: the power output (both starting and running watts), what kind of fuel it uses, and of course, how easy it is to get started. Youll also learn about the importance of outlets and how well it operates at different power requirements. Lets dig in and find the right generator to make your welding tasks easier and more convenient.
Recommended Products
Detailed Best Portable Generator For Welding Reviews
1. GE Flex Power® 3300i Silent
The GE Flex Power 3300i Silent is a portable generator designed for welding, featuring a 3300 starting watts and 2800 running watts, which provides ample power for various welding tasks. Its inverter technology ensures clean power, essential for sensitive electronics used in welding equipment. This generators silent operation allows for use in noise-sensitive environments, and its compact design makes it easily transportable to job sites. A practical example of its usefulness is its ability to power a small MIG welder at a construction site without disturbing the surroundings.
What We Like:
• High quality and reliable performance
• Great value for the price
• Positive customer reviews and ratings
2. GENMAX Generator,EPA Compliant, Eco-Mode
The GENMAX Generator is a portable power solution designed for welding, featuring a robust 420cc engine and a maximum output of 8000 surge watts and 6500 running watts. Its EPA compliance ensures it meets environmental standards, while the built-in Eco-Mode optimizes fuel efficiency by automatically adjusting engine speed. This generator is well-suited for welding tasks due to its consistent power delivery and sufficient wattage to run most welding machines.
A notable advantage is its quiet operation compared to similar models, allowing for use in locations where noise levels are a concern. This feature makes it great for construction sites or at home in residential areas. The generator also includes multiple outlets, including a 120V and 240V, providing versatility for various power tool needs.
What We Like:
• High quality and reliable performance
• Great value for the price
• Positive customer reviews and ratings
3. HP TOMAHAWK Engine Driven Portable
The HP TOMAHAWK Engine Driven Portable generator is a powerful option, boasting a robust engine capable of delivering ample wattage for welding tasks. It features a reliable recoil start system and a durable steel frame. Its high power output ensures smooth welding performance, even with thicker materials. A notable pro is its portability, allowing welders to work remotely, like on a construction site or in the field.
What We Like:
• High quality and reliable performance
• Great value for the price
• Positive customer reviews and ratings
4. HP TOMAHAWK Welder Generator Stick
The HP TOMAHAWK Welder Generator Stick is a portable powerhouse, featuring a 225A DC stick welder and a 7000-watt generator. Its engine runs on gasoline, allowing for flexibility on remote job sites. This generator is excellent for welding applications because of its consistent power output and robust design. A major advantage is the inclusion of multiple outlets for powering tools and lights alongside the welding function, which adds versatility. Its durable construction ensures it can withstand the rigors of frequent use.
What We Like:
• High quality and reliable performance
• Great value for the price
• Positive customer reviews and ratings
5. Red Westinghouse 12500 Peak Watt
The Red Westinghouse 12500 Peak Watt portable generator is built for demanding tasks, boasting a robust 459cc engine and a large 7.9-gallon fuel tank for extended runtimes. Its key feature is its welding capability, providing up to 10,000 running watts for welding applications. This generator is excellent for welding projects because it supplies ample power, allowing for smooth welds even with heavier materials, as its capable of utilizing both AC and DC output. A notable advantage is the inclusion of several outlets, including a 120V and 240V, along with a digital display showing voltage, frequency, and run time, making it easy to monitor performance.
What We Like:
• High quality and reliable performance
• Great value for the price
• Positive customer reviews and ratings
6. ATI Generac 12,500 Starting Watt
The ATI Generac 12,500 Starting Watt portable generator provides ample power for demanding welding tasks, featuring a robust 459cc engine. It includes an electric start for effortless operation and multiple outlets, including a 120/240V twist-lock receptacle for welding machines. This generators high starting wattage ensures it can handle the initial surge required by welders, while its steady running wattage sustains operation. A significant advantage is its ability to power not just welding equipment but also lights and other tools simultaneously, increasing jobsite efficiency.
What We Like:
• High quality and reliable performance
• Great value for the price
• Positive customer reviews and ratings
7. BS A-iPower 5000-Watt Portable Generator
The BS A-iPower 5000-Watt Portable Generator is a robust power source designed for welding tasks. It features a powerful 223cc engine and provides up to 5000 starting watts and 4000 running watts. This allows it to handle many welding applications, easily powering welders that need a reliable and consistent supply. A notable pro is its dual 120V outlets, enabling you to simultaneously use the generator for additional tools. The generators compact design and portability add to its overall usefulness on the jobsite.
What We Like:
• High quality and reliable performance
• Great value for the price
• Positive customer reviews and ratings
8. AS DuroStar DS13000MX 13,000-Watt 500cc
The DuroStar DS13000MX is a robust 13,000-watt portable generator, powered by a substantial 500cc engine, making it suitable for demanding tasks.
This generator is well-suited for welding due to its considerable power output and multiple outlets, including a 120V and 240V, allowing it to handle various welding machines.
A notable advantage is its electric start and long run time, offering convenience and extended operational capability. This is especially helpful during extended welding projects.
The sturdy build and powerful engine make this a reliable choice for professional welders and serious DIY enthusiasts alike.
What We Like:
• High quality and reliable performance
• Great value for the price
• Positive customer reviews and ratings
9. Red 4400-Watt Portable Inverter Generator,
The Red 4400-Watt Portable Inverter Generator offers a versatile power solution, boasting a 3500 running watts and 4400 peak watts. This generator includes two 120V outlets and a 12V DC outlet, making it suitable for powering various tools. Its inverter technology ensures clean power, vital for sensitive electronics, which is also beneficial for welding. The generators compact and portable design coupled with its quiet operation makes it an excellent choice for both job sites and recreational use, like camping.
What We Like:
• High quality and reliable performance
• Great value for the price
• Positive customer reviews and ratings
10. Red Westinghouse Outdoor Power Equipment
The Red Westinghouse outdoor power equipment generator is a robust portable welding solution, featuring a 224cc Westinghouse engine and a 120/240V AC output. Its design incorporates both a standard outlet and a welding output, allowing you to power tools and weld with a single machine. This generator excels at providing consistent power for welding tasks due to its stable output.
A notable pro is its ease of use; the controls are clearly labeled, and the engine starts reliably even in colder temperatures. The generators sturdy frame and compact size make it easily transportable to remote job sites, providing convenient power wherever you need it.
What We Like:
• High quality and reliable performance
• Great value for the price
• Positive customer reviews and ratings
Buying Guide
Buying Guide: Portable Generators for Welding
Choosing the right portable generator for welding involves understanding your power needs and the features that best suit your projects. Heres a quick guide to help you choose the best one.
Power Output (Wattage)
The most crucial factor is wattage. Welders require significant power. Ensure your generator provides enough continuous running watts to handle your welders power demands plus any additional power for lights or tools. A 7000-watt generator can support a 225-amp welder. Check your welders specifications to determine the exact wattage requirements.
Welding Output Features
Look for generators with features specifically designed for welding, such as a dedicated welding outlet and a voltage regulator. Some generators have specialized welding settings like DC welding output, improving the quality of your welds.
Engine Type and Fuel
Consider the engine type and fuel efficiency. Diesel generators are known for their durability and fuel economy, which is a great option for prolonged use. Gasoline generators are more common and accessible. Choose a fuel type that aligns with your budget and usage expectations.
Portability and Durability
Finally, assess portability and durability. Consider the generators weight, dimensions, and wheel kit (if included). Ensure the generator is constructed with durable materials and protects internal components to withstand jobsite conditions.
Frequently Asked Questions
What size generator do I need for welding?
The generator size you need depends on your welding machines power requirements. Youll need to know the voltage and amperage your welder draws. A general guideline is to select a generator that provides at least 1.5 to 2 times the welders peak wattage to account for startup surges.
What features are important to look for in a welding generator?
Key features include a robust engine for sustained power, a reliable automatic voltage regulator (AVR) for stable voltage output, and a selection of outlets. Consider a generator with low harmonic distortion (THD) for cleaner power, and a built-in electric start for convenience. Also consider a generator with a fuel gauge and automatic shutoff.
Are there generators specifically designed for welding?
Yes, many manufacturers offer generators designed specifically for welding. These generators often have features optimized for welding, such as a dedicated welding outlet and a robust design to handle the demands of welding. They typically combine a generator and a welder into a single unit.
What fuel type is best for a portable welding generator?
Most portable welding generators run on gasoline, offering easy refueling and portability. Propane generators are another option, providing cleaner emissions and longer run times. Consider diesel generators for heavy-duty applications, as they offer excellent fuel efficiency and durability, but they are often more expensive.
How do I maintain my portable welding generator?
Regular maintenance is crucial. This includes checking and changing the oil, cleaning or replacing the air filter, inspecting the spark plugs, and checking the fuel lines. Always consult the generators manual for specific maintenance schedules and instructions to ensure optimal performance and longevity.
Final Thoughts
In conclusion, the best portable generator for welding depends entirely on your specific requirements. Weve seen models ranging from compact inverter generators, ideal for lighter jobs with a focus on fuel efficiency, to robust, larger-frame generators capable of handling heavy-duty welding tasks, like repairing farm equipment.
Consider the amperage needed for your welder, the desired portability, and the budget you have allocated. Look for generators with features like electric start and automatic voltage regulation for ease of use. Whether you need a small unit for occasional repairs or a powerful machine for professional use, choose the generator that fits your welding and power needs.
Explore the options and find the perfect match for your projects today!

I’m Darrell Julian, the founder, lead writer, and hands-on welding enthusiast behind ArcWeldingPro.com. With more than 15 years of real-world welding experience, I created this platform to share what I’ve learned in the field, in the shop, and in the heat of the arc.













