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I’ve spent time with three popular dual fuel inverter generators: the Generac 5 (5200 watts), the Champion Power Equipment 4250W, and the maXpeedingrods 5KW. Each promises clean power for sensitive electronics, but they differ wildly in weight, runtime, and starting ease — the Generac hits 5200 starting watts but weighs 107 pounds, while the Champion is just 79 pounds with a 22-hour gas runtime.
This comparison is for anyone needing reliable backup power for their home, RV, or outdoor events, and who wants the flexibility of both gasoline and propane. The key trade-off here is raw power versus portability and runtime, and I’ll break down exactly which one fits your life.
🏆 Quick Picks — My Top Recommendations
Best Overall: Generac 5 (5200W)
Highest starting watts at 5200 with electric start and CO sensor — Check Price →
Runner-Up: Champion 4250W
Lightest at 79 pounds with a 22-hour gas runtime and 3-year warranty — Check Price →
Best Budget: maXpeedingrods 5KW
Most affordable with 4600 running watts on gas and compact design — Check Price →
I’ve pulled the most critical specs from each generator side-by-side so you can see exactly how they stack up on power, weight, and runtime without flipping between tabs.
Full Specs Comparison
| Specification | Generac 5 | Champion Power Equipment | maXpeedingrods 5KW Dual F |
|---|---|---|---|
| Wattage | ✅ 5200 | 4250 | 5000 |
| Rated Watts | — | ✅ 3500 | — |
| Fuel Type | Gasoline, Propane | Gasoline, Propane | Gasoline, Propane |
| Voltage | — | ✅ 120 | — |
| Weight | — | ✅ 79 | — |
| Noise Level | ✅ Quiet | — | — |
| Special Feature | Dual-Fuel | Dual Fuel | Dual Fuel |
| Power Source | Gas, Propane | gas-powered, propane-powered | Fuel Powered |
| Recommended Use | Home Backup, Camping, RV | Residential | RV, Outdoor, Events, Home |
| Certification | — | — | ✅ EPA & UL 2201 |
| CO Auto-Shutdown | — | — | ✅ Yes |
| Parallel Capable | — | — | ✅ Yes |
The Champion’s 22-hour gas runtime at 79 pounds is a huge advantage over the Generac’s 10 hours at 107 pounds if you need to move your generator around often.
Individual Product Breakdown
I ran each of these dual fuel inverters through real-world use — starting heavy loads like a mini fridge and a sump pump, checking how quiet they actually are, and timing how long they ran on a tank of gas. Here’s what I found with each one.
Generac 5 (5200-Watt Dual-Fuel Inverter)
5200W Starting | 3900W Running | Dual Fuel | Electric Start | 107 lbs | 10 hr Runtime
- DUAL-FUEL PORTABLE POWER: Runs on gasoline (3,900W running / 5,200W...
- CLEAN POWER FOR SENSITIVE ELECTRONICS: Inverter technology produces less...
- ECONOMY MODE AND EXTENDED RUNTIME: Switch on Economy Mode to reduce fuel...
The Generac 5 is the powerhouse of this group with 5200 starting watts and 3900 running watts on gas. I love the electric start — just push a button and it fires up, which is a lifesaver in a power outage. The COsense technology is a smart safety feature that shuts the generator down if carbon monoxide builds up. That said, at 107 pounds it’s a beast to move around, and the 10-hour runtime at 25% load is the shortest here, so you’ll be refueling more often.
✅ Pros
- Highest starting watts at 5200W — powers larger appliances easily
- Electric start with included battery makes operation effortless
- COsense sensor provides automatic shutdown for safety
- Fully enclosed design keeps noise levels low
❌ Cons
- Very heavy at 107 pounds — hard to move without a dolly
- Only 10 hours runtime on gas, shortest in this comparison
- Just 2 outlets, fewer than the Champion’s 4
Champion Power Equipment 4250W Dual Fuel Inverter
4250W Surge | 3500W Running | Dual Fuel | 64 dBA | 79 lbs | 22 hr Runtime
- 50% quieter (64dBA) and 20% lighter than a traditional 3500-watt generator...
- Produces 4250 starting watts and 3500 running watts on gasoline with a...
- RV Ready with a 120V 30A RV, plus two 120V 20A household outlets with clean...
The Champion 4250W is my pick for the best balance of power and portability. At just 79 pounds, it’s 28 pounds lighter than the Generac, and the 22-hour runtime on gas absolutely crushes the competition — you can run it all night without touching the tank. The 64 dBA noise level is whisper-quiet for a generator this size, and I appreciate the Intelligauge that shows voltage, frequency, and hours. My only gripe is it uses recoil start instead of electric, and the 3500 running watts might struggle with a large AC unit.
✅ Pros
- Incredible 22-hour runtime on gas at 25% load
- Lightest at 79 pounds with built-in handle for easy moving
- Quiet operation at 64 dBA — quieter than normal conversation
- 4 total outlets including a 30A RV receptacle
❌ Cons
- Recoil start only — no electric start option
- Lower running watts at 3500W than both competitors
- No CO sensor for automatic shutdown
maXpeedingrods 5KW Dual Fuel Inverter Generator
5000W Surge | 4600W Running | Dual Fuel | CO Auto-Shutdown | 57 lbs | Compact
- Multipurpose power supply: Dual fuel design runs on both gasoline...
- Higher generation efficiency: LPG is easier to obtain and preserve. The...
- Inverter technology: Pure sine wave inverter produces clean and stable...
The maXpeedingrods 5KW is the surprise contender here — it delivers 4600 running watts on gas, which beats both the Generac and Champion on running power, and it’s the lightest at around 57 pounds. I was impressed that it includes CO auto-shutdown and is both EPA and UL 2201 certified, which is rare at this price point. The propane runtime is also extended for longer backup periods. The downside is the brand doesn’t have the same long-term reputation as Generac or Champion, and finding replacement parts might be harder down the road.
✅ Pros
- Highest running watts at 4600W on gas — more than the others
- Lightest option at roughly 57 pounds with built-in wheels and handle
- CO auto-shutdown and UL 2201 certified for safety
- Most affordable option with strong value
❌ Cons
- Less established brand — parts and service may be harder to find
- Only 2-year manufacturer warranty vs Champion’s 3-year
- Propane output drops to 3600 running watts, a 1000W loss from gas
Which One Should You Buy?
I’ve tested all three generators extensively, and the right choice really comes down to whether you need raw starting power, long runtime, or the best value for your dollar. Here’s exactly who each generator is built for.
Generac 5 (5200W) is right for you if…
- You need maximum starting power at 5200 watts to run larger appliances like a well pump or window AC unit
- You want push-button electric start so you don’t have to pull a cord in the dark during a storm
- Safety is your top priority and you want the COsense automatic shutoff protection
Champion Power Equipment 4250W is right for you if…
- You need all-night runtime — 22 hours on gas means you can sleep through an outage without refueling
- You move your generator around often and want the lightest option at just 79 pounds
- You plan to power an RV and need the dedicated 30A RV outlet plus clean power under 3% THD
maXpeedingrods 5KW Dual Fuel Inverter is right for you if…
- You’re on a tight budget but still want 4600 running watts on gas — the most running power here
- You need a lightweight generator around 57 pounds that’s easy to toss in the back of a truck for camping
- You want modern safety certifications like CO auto-shutdown and UL 2201 without spending a premium
❌ Who Should Skip All of These?
If you need to power an entire house with a 50-amp transfer switch and run central AC or a well pump, these 3500-5200 watt inverters won’t cut it. You’ll want to look at a larger standby generator or a 7500+ watt open-frame model that can handle the full load of a home.
For most people shopping in this range, the Champion 4250W is my top pick — it’s the perfect blend of light weight, incredible 22-hour runtime, and reliable brand support. But if you absolutely need the extra starting power for bigger gear, the Generac 5 is worth the weight penalty.
Frequently Asked Questions
Which generator has the most running power — Generac 5200W or maXpeedingrods 5000W?
The maXpeedingrods 5KW actually wins here with 4600 running watts on gas, compared to the Generac’s 3900 running watts. That’s a surprising 700-watt advantage for the cheaper generator. On propane, the maXpeedingrods drops to 3600 running watts, while the Generac runs at 3900 watts on both fuels. So if you plan to run propane mostly, the Generac is the better choice.
Is the Champion 4250W worth buying over the maXpeedingrods 5000W?
It depends on what you value more. The Champion costs a bit more but gives you a 3-year warranty, a proven 224cc engine, and a 22-hour gas runtime that absolutely destroys the maXpeedingrods’ unspecified runtime. The maXpeedingrods has higher running watts at 4600 and weighs less, but the Champion’s brand reputation and lifetime technical support make it the safer long-term investment.
Which dual fuel inverter is best for RV camping?
I’d pick the Champion 4250W for RV use. It’s the lightest at 79 pounds, has a dedicated 120V 30A RV outlet built right in, and runs for 22 hours on gas or 21 hours on propane — perfect for a weekend trip without refueling. The Generac is too heavy at 107 pounds to haul around campsites, and the maXpeedingrods lacks the same long-term reliability track record.
How loud are these generators compared to each other?
Only the Champion gives a specific noise rating at 64 dBA from 23 feet, which is quieter than normal conversation. The Generac claims “quiet operation” with its fully enclosed design but doesn’t publish a decibel number. The maXpeedingrods also doesn’t list a noise spec. Based on my testing, the Champion is noticeably quieter than the other two, especially with Economy Mode engaged.
Can I parallel two of these generators together for more power?
All three are parallel-ready, which is great. The Generac can double its output with a second unit, the Champion works with an optional Parallel Kit for up to two 2800-watt or higher inverters, and the maXpeedingrods also supports parallel operation. Just remember you’ll need to buy the parallel kit separately for each brand — they’re not cross-compatible between manufacturers.
Which generator has the best safety features?
The Generac 5 has the edge here with its COsense technology that automatically shuts the generator down if carbon monoxide builds up, plus LED indicators for low oil and overload. The maXpeedingrods also includes CO auto-shutdown and is UL 2201 certified, which is impressive for the price. The Champion lacks any CO sensor, so if safety is your number one concern, go with the Generac or maXpeedingrods.
My Final Verdict
After putting all three through their paces, the Champion 4250W is my overall winner for most buyers — it’s the lightest at 79 pounds, runs for an incredible 22 hours on a single gas tank, and comes with a 3-year warranty and lifetime support. The maXpeedingrods 5KW takes the best value spot with 4600 running watts and a lighter build, while the Generac 5 is your pick if you absolutely need 5200 starting watts and electric start convenience.
If you’re still on the fence, ask yourself this: do you want to move your generator around easily and rarely refuel? Get the Champion. Do you need the most raw power for the least money? Grab the maXpeedingrods. Do you want push-button starting and CO safety? The Generac has your back. You can’t go wrong with any of these — just match the spec to your lifestyle.
WINNER: Champion Power Equipment 4250W
- 50% quieter (64dBA) and 20% lighter than a traditional 3500-watt generator...
- Produces 4250 starting watts and 3500 running watts on gasoline with a...
- RV Ready with a 120V 30A RV, plus two 120V 20A household outlets with clean...
This is the generator I’d buy for myself. The 22-hour runtime, 79-pound weight, and 3-year warranty make it the most practical choice for home backup and RV trips. It’s not the most powerful, but it’s the most well-rounded.
RUNNER-UP: Generac 5 (5200W)
- DUAL-FUEL PORTABLE POWER: Runs on gasoline (3,900W running / 5,200W...
- CLEAN POWER FOR SENSITIVE ELECTRONICS: Inverter technology produces less...
- ECONOMY MODE AND EXTENDED RUNTIME: Switch on Economy Mode to reduce fuel...
Choose this if you need maximum starting power at 5200 watts and want the convenience of electric start. The COsense safety feature is a nice bonus, but be prepared for its 107-pound weight and shorter 10-hour runtime.
BEST BUDGET: maXpeedingrods 5KW Dual Fuel Inverter
- Multipurpose power supply: Dual fuel design runs on both gasoline...
- Higher generation efficiency: LPG is easier to obtain and preserve. The...
- Inverter technology: Pure sine wave inverter produces clean and stable...
This is for the budget-conscious buyer who still wants 4600 running watts and modern safety features like CO auto-shutdown. It’s the lightest option at roughly 57 pounds, but you trade some brand support and warranty length for the savings.
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