WEN 3,650W Dual-Fuel Generator Review

Summary

The WEN DG4500iX is a dual-fuel generator rated at 3650 running watts with 4500 starting watts. That combination gives it enough headroom to handle loads that surge at startup while still providing a solid continuous output once everything is running.

With dual-fuel capability paired to a 4-gallon fuel tank, the DG4500iX is built around flexibility in how it is fed and how it is used, while keeping its core focus on delivering up to 4500 starting watts when a connected load demands extra power.

Power & Runtime

Because the DG4500iX runs on dual-fuel, it gives you two fueling options while delivering 3650 running watts and up to 4500 starting watts. In practical use, that starting-watt capacity matters most when equipment needs a brief burst of extra power to get moving, while the running-watt rating is what you live on once everything settles into steady operation.

Noise is rated at 68 dBA, which sets expectations for how present the generator will sound while operating. Runtime is listed as 12 hours at 50 percent load, giving a clear reference point for longer stretches of use when you are not pushing it to full output. Total harmonic distortion is listed as under 1 percent, a clean power figure that aligns well with powering sensitive electronics through inverter output.

Portability

At 90.8 lbs, the DG4500iX is a substantial unit that favors stable placement over casual one-handed carrying. Its physical footprint is defined by dimensions of 22.8 x 22.8 x 21.5 inches, which helps when planning where it will sit in a garage, storage area, or at a campsite.

Those measurements also make it easier to judge fit for transport and staging, since you can match the generator’s 22.8-inch by 22.8-inch base and 21.5-inch height to the space you have available.

Features

Starting is handled through both recoil and electric systems, letting you choose between a manual pull start and an electric start depending on the situation. A fuel gauge supports quick checks on fuel status, and built-in indicators provide at-a-glance operating feedback while the generator is running.

The DG4500iX is EPA compliant and includes a spark arrestor, which supports use in settings where those requirements matter. It is also parallel capable, giving you a path to scale output by linking with another compatible unit, and it is RV ready for plugging into RV-focused power needs. Covered outlets add a layer of protection for the receptacles, while AVR, or automatic voltage regulation, helps maintain steadier output. A 3-year warranty rounds out the package with longer-term coverage.

Recommended Audiences

• RV owners needing RV-ready power
• Users who want to scale output via parallel operation
• Owners of sensitive electronics seeking clean inverter power
• Buyers wanting fuel flexibility with dual or tri-fuel capability
• Homeowners needing emergency backup for essential circuits
• Users who value push-button or remote start convenience