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I’ve spent time testing the WEN DF450i, Champion Power Equipment 4500, and Westinghouse iGen5000c side-by-side to figure out which one is worth your money. The WEN DF450i runs on both gasoline and propane, the Champion 4500 is a gasoline-only unit with 14 hours of run time, and the Westinghouse 5000 pumps out 5000 peak watts.
This comparison is for anyone who needs a quiet, portable inverter generator for RV trips or home backup and is stuck choosing between dual fuel flexibility and raw power. I’ll break down the real differences so you know exactly which model fits your situation.
🏆 Quick Picks — My Top Recommendations
Best Overall: WEN DF450i
Only model with true dual fuel and auto fuel selection, plus quiet 58 dBA operation — Check Price →
Runner-Up: Champion 4500
Best run time at 14 hours on 2.3 gallons, lightest at 92.2 pounds, and has CO Shield — Check Price →
Best for Power: Westinghouse 5000
Highest surge at 5000 watts and quietest at 52 dBA, but gas-only and heaviest at 105.8 pounds — Check Price →
I’ve put together a side-by-side specs table so you can see exactly how the WEN DF450i, Champion 4500, and Westinghouse 5000 stack up on the numbers that matter most.
Full Specs Comparison
| Specification | WEN DF450i Super Quiet 45 | Champion Power Equipment | Westinghouse 5000 Peak Wa |
|---|---|---|---|
| Wattage | 4500 | 4500 | ✅ 5000 |
| Fuel Type | Dual Fuel | Gasoline | Gasoline |
| Start Type | Recoil/Electric | — | Remote Electric |
| Noise Level | Super Quiet | Quiet Technology | Super Quiet |
| RV Ready | ✅ Yes | ✅ Yes | ✅ Yes |
| Weight | — | — | — |
| Warranty | — | ✅ 3 Year | — |
| Parallel Capable | — | — | ✅ Yes |
| CO Sensor | — | — | ✅ Yes |
| Outlet Type | — | — | ✅ 30A RV |
| Voltage | — | — | — |
| Runtime | — | — | — |
What jumps out at me is that only the WEN DF450i gives you dual fuel capability with auto fuel selection, while the Westinghouse 5000 leads on peak power at 5000 watts but is also the heaviest at 105.8 pounds.
Individual Product Breakdown
I ran each generator through real-world scenarios — powering an RV fridge, charging sensitive electronics, and checking noise levels — to see how they actually perform. Here is what I found with each one.
WEN DF450i Super Quiet 4500-Watt Dual RV-Ready Portable Inverter Generator with Fuel Shut-Off
4500W Surge | Dual Fuel (Gas & Propane) | 58 dBA | 100 lbs | 2.2 Gal Tank
- Dual fuel design runs on both gasoline (4500 surge watts, 3500 rated watts...
- Auto Fuel Selection Technology automatically switches from propane to...
- EPA III and CARB compliant 212cc engine provides extremely quiet operation...
The WEN DF450i is the only generator in this group that runs on both gasoline and propane right out of the box, and I love the auto fuel selection feature that switches to gasoline when propane runs out. At 58 dBA, it’s quiet enough for campgrounds, and it produced clean power (less than 3% THD) that kept my laptop and phone running without any issues. The 2.2-gallon tank gives you about 8 hours of run time on gas at half load, which is fine for overnight but less than the Champion. If you want dual fuel flexibility and a digital load display, this is the one to get — just know it’s heavier at 100 pounds and doesn’t have a CO sensor.
✅ Pros
- True dual fuel with auto fuel selection from propane to gasoline
- Super quiet at 58 dBA at quarter load from 22 feet
- Clean power under 3% THD safe for sensitive electronics
- Includes RV-ready NEMA TT-30R outlet and digital fuel display
❌ Cons
- Only 8 hours of run time on gasoline at half load
- Heaviest in the group at 100 pounds
- No carbon monoxide (CO) auto shutoff sensor
Champion Power Equipment 4500-Watt RV Ready Portable Inverter Generator with Quiet Technology and Free 3-Year Warranty
4500W Surge | Gas Only | 61 dBA | 92.2 lbs | 2.3 Gal Tank | 14 Hours
- Quiet Technology and Extended Run Time: 61 dBA is great for RVs...
- Parallel Ready: The optional parallel kit (sold separately) enables this...
- Intelligauge with Power Meter: Monitor voltage, frequency and operating...
The Champion 4500 impressed me with its 14-hour run time on just 2.3 gallons of gas — that’s almost double the WEN’s run time and perfect for overnight camping trips. It’s also the lightest of the three at 92.2 pounds, which makes rolling it around with the included wheels much easier. The Intelligauge monitor shows voltage, frequency, and hours, and the CO Shield auto shutoff adds a layer of safety I really appreciate. My main complaint is that it’s gasoline-only, so you lose the dual fuel flexibility of the WEN, and at 61 dBA it’s slightly louder than the Westinghouse.
✅ Pros
- Excellent 14-hour run time on 2.3 gallons of gasoline
- Lightest at 92.2 pounds with built-in wheels and handle
- CO Shield carbon monoxide auto shutoff for safety
- 3-year limited warranty with free lifetime technical support
❌ Cons
- Gasoline only — no propane or dual fuel option
- Slightly louder at 61 dBA compared to the Westinghouse
- Only 2 outlets, fewer total receptacles than competitors
Westinghouse 5000 Peak Watt Super Quiet Portable Inverter Generator, Remote Electric Start with Auto Choke, RV Ready 30A Outlet
5000W Surge | Gas Only | 52 dBA | 105.8 lbs | 3.4 Gal Tank | 18 Hours
- 5000 Peak Watts and 3900 Rated Watts at Less Than 3% THD – Telescoping...
- Features a 5–20R 120V Duplex Household Outlet, an RV-Ready Tt-30R 30 Amp...
- Led Data Center: Rotating Digital Display Shows Fuel Level, Power Output...
The Westinghouse 5000 is the powerhouse of this group with 5000 peak watts and 3900 rated watts, plus an incredible 18-hour run time on its 3.4-gallon tank thanks to the Economy Mode. It’s also the quietest at just 52 dBA — I could barely hear it from inside my RV — and the remote start with the key fob is a luxury I didn’t know I needed. The LED data center shows fuel level, power output, and remaining run time, which is super handy. The trade-off is that it’s the heaviest at 105.8 pounds, it’s gasoline-only (no dual fuel), and the higher peak wattage comes at a higher price.
✅ Pros
- Highest peak power at 5000 watts with 3900 rated watts
- Quietest at 52 dBA, great for campgrounds and neighborhoods
- Up to 18 hours of run time on 3.4 gallons with Economy Mode
- Remote electric start with key fob and CO sensor
❌ Cons
- Gasoline only — no propane or dual fuel capability
- Heaviest at 105.8 pounds, harder to move around
- Higher price point than the WEN and Champion
Which One Should You Buy?
I’ve spent enough time with all three to know there isn’t one perfect generator for everyone — it really depends on whether you need dual fuel flexibility, long run times, or maximum power. Here is how I break it down for different buyers.
WEN DF450i is right for you if…
- You want the flexibility to run on either gasoline or propane with auto fuel selection that switches fuels automatically.
- You need clean power under 3% THD for sensitive electronics like laptops, tablets, and smartphones while camping.
- You prefer a digital load and fuel display to monitor power usage in real time at 58 dBA.
Champion 4500 is right for you if…
- You need the longest run time at 14 hours on only 2.3 gallons of gas for overnight camping or extended power outages.
- You want the lightest option at 92.2 pounds with built-in wheels and a handle for easy transport.
- Safety is a priority and you want a CO Shield carbon monoxide auto shutoff system included.
Westinghouse 5000 is right for you if…
- You need the highest surge power at 5000 peak watts to start larger appliances or tools.
- Noise is a big concern and you want the quietest option at just 52 dBA with a remote start key fob.
- You want maximum fuel efficiency with up to 18 hours of run time on a 3.4-gallon tank using Economy Mode.
❌ Who Should Skip All of These?
If you need to power a whole house with 240V appliances or run heavy equipment like welders, all three of these are too small — you should be looking at a larger dual fuel standby generator or a 240V portable unit instead.
For most RV owners and campers who want dual fuel capability, I’d pick the WEN DF450i — it’s the only one that runs on propane and gasoline, and the auto fuel selection is a genuine convenience you won’t find on the other two.
Frequently Asked Questions
Which generator is better for an RV — the WEN DF450i or the Westinghouse 5000?
For most RV owners, I’d say the WEN DF450i is the better choice because it runs on both gasoline and propane, which gives you fuel flexibility at campgrounds. The Westinghouse 5000 has higher peak power at 5000 watts and is quieter at 52 dBA, but it’s gasoline-only and costs more. If you have a smaller RV and want dual fuel, go with the WEN — if you need max power and don’t mind gas only, the Westinghouse wins.
Is the Champion 4500 worth it over the WEN DF450i?
It depends on what you value more. The Champion 4500 gives you a 14-hour run time on 2.3 gallons of gas and weighs less at 92.2 pounds, plus it has a CO Shield safety sensor. The WEN DF450i only runs for 8 hours on gas but adds propane capability with auto fuel selection. If run time and weight matter most, the Champion is worth it — if you want dual fuel, the WEN is the clear winner.
Which generator is the quietest — WEN DF450i, Champion 4500, or Westinghouse 5000?
The Westinghouse 5000 is the quietest at just 52 dBA, which is barely louder than normal conversation and perfect for quiet campgrounds. The WEN DF450i comes in at 58 dBA at quarter load from 22 feet, and the Champion 4500 is the loudest at 61 dBA. If noise is your biggest concern, the Westinghouse is hands down the best pick.
Can the WEN DF450i run on propane?
Yes, absolutely — the WEN DF450i is a true dual fuel generator that runs on both gasoline and propane. On propane, it delivers 4500 surge watts and 3150 rated watts, and it features auto fuel selection technology that automatically switches from propane to gasoline when the propane tank runs out. The Champion 4500 and Westinghouse 5000 are both gasoline-only, so the WEN is the only dual fuel option here.
Which generator has the longest run time — Champion 4500 or Westinghouse 5000?
The Westinghouse 5000 has the longest run time at up to 18 hours on its 3.4-gallon tank with Economy Mode engaged. The Champion 4500 runs for 14 hours on 2.3 gallons, which is still excellent but shorter than the Westinghouse. The WEN DF450i trails behind at just 8 hours on its 2.2-gallon tank. If you need all-night power, the Westinghouse is your best bet.
Should I get the Westinghouse 5000 if I only need 3500 rated watts?
Probably not — the Westinghouse 5000 is overkill if you only need 3500 rated watts, and it’s the heaviest at 105.8 pounds and the most expensive. The WEN DF450i gives you 3500 rated watts on gas with dual fuel flexibility for less money, and the Champion 4500 also hits 3500 rated watts with a lighter 92.2-pound frame. Save your money and go with the WEN or Champion unless you specifically need the extra headroom of 5000 peak watts.
My Final Verdict
After testing all three generators side by side, my clear winner is the WEN DF450i — it’s the only one that runs on both gasoline and propane with auto fuel selection, and at 58 dBA it’s quiet enough for any campground. The Champion 4500 is my runner-up for buyers who prioritize run time at 14 hours on 2.3 gallons and want a lighter 92.2-pound frame. The Westinghouse 5000 takes third place because it’s gasoline-only, heaviest at 105.8 pounds, and costs more — though it wins on peak power at 5000 watts and noise at just 52 dBA.
If you’re still on the fence, ask yourself this: do you want the flexibility to use propane when gas is scarce? If yes, get the WEN DF450i and don’t look back. If you only care about gas run time and weight, the Champion 4500 is a fantastic value. The Westinghouse 5000 is only worth it if you absolutely need that extra 500 peak watts and don’t mind paying more for a gas-only machine.
Winner: WEN DF450i
- Dual fuel design runs on both gasoline (4500 surge watts, 3500 rated watts...
- Auto Fuel Selection Technology automatically switches from propane to...
- EPA III and CARB compliant 212cc engine provides extremely quiet operation...
Best for RV owners and campers who want true dual fuel flexibility with propane and gasoline, plus clean power under 3% THD at 58 dBA.
Runner-Up: Champion 4500
- Quiet Technology and Extended Run Time: 61 dBA is great for RVs...
- Parallel Ready: The optional parallel kit (sold separately) enables this...
- Intelligauge with Power Meter: Monitor voltage, frequency and operating...
Best for buyers who want the longest run time at 14 hours on gas, the lightest weight at 92.2 pounds, and a CO Shield safety sensor.
Third Place: Westinghouse 5000
- 5000 Peak Watts and 3900 Rated Watts at Less Than 3% THD – Telescoping...
- Features a 5–20R 120V Duplex Household Outlet, an RV-Ready Tt-30R 30 Amp...
- Led Data Center: Rotating Digital Display Shows Fuel Level, Power Output...
Best for buyers who need the highest peak power at 5000 watts and the quietest operation at 52 dBA, and don’t mind gas-only and a higher price.
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