The WEN DF450i 4500-Watt Dual Fuel RV-Ready Portable Inverter Generator runs on 2 fuels; the other on 1. The WEN DF450i 4500-Watt Dual Fuel RV-Ready Portable Inverter Generator is listed $49 lower.
Side by side
| Specification | WEN DF450i 4500-Watt Dual Fuel RV-Ready Portable Inverter Generator | Westinghouse Outdoor Power WH3700iXLTc Inverter Generator |
|---|---|---|
| Brand | WEN | Westinghouse Outdoor Power |
| Running watts | 3,500 W | 3,700 W |
| Starting watts | 4,500 W | — |
| Fuel types | Gasoline, Propane | Gasoline |
| Fuel tank (gasoline) | — | 1.3 gal |
| Runtime (as stated) | — | up to 8 h |
| Noise (as stated) | — | 58 dB |
| Weight | — | 79.4 lb |
| Starting system | — | — |
| Inverter | Yes | Yes |
| Carbon monoxide shutoff | Not listed | Listed |
| Parallel capable | — | — |
| Warranty | — | 3 Year Limited |
| Household appliances it can run by watts (calc) | 19 of 20 | 19 of 20 |
| Price per running watt (calc) | $0.20 | $0.20 |
| Price seen | $700 | $749 |
| Sellers | 1 | 1 |
Highlighted rows differ. Figures come from each product's sources; runtime, recharge and cost rows are Wattstanding calculations using the same method for both.
Which should you choose?
WEN DF450i 4500-Watt Dual Fuel RV-Ready Portable Inverter Generator
Choose the WEN DF450i 4500-Watt Dual Fuel RV-Ready Portable Inverter Generator if fuel flexibility matters or price decides it.
Westinghouse Outdoor Power WH3700iXLTc Inverter Generator
Choose the Westinghouse Outdoor Power WH3700iXLTc Inverter Generator if you prefer its maker, seller or ecosystem — the published figures do not favour it.
Before you buy either
- Total your loads with the appliance load & runtime calculator.
- Confirm what each seller includes — accessories, software trials and bundles change often.
- Read the limitations on each full reference page.
Wattstanding compares published specifications; we have not tested these products side by side. How we work · Disclosure