Pros & Cons — The Honest Take

For me, the pros like the remote start and dual fuel flexibility far outweigh the weight and noise. If you need serious backup power and don’t mind the size, this is a solid choice.

⚖️ How Does It Compare?

I picked the Westinghouse 12500 Peak Watt and the Westinghouse 6500 Watt Dual as the closest alternatives because they share the same brand and dual-fuel DNA but serve different power needs. Let me break down where each one fits better than the 13500-watt model I tested.

If you need whole-house backup with dual fuel and don’t mind the 230-pound weight, stick with the 13500 I tested — it’s the most capable of the three. Go for the 12500 if you’re on a tighter budget and only need gas, or grab the 6500 if portability matters more than raw power.

How It Actually Performs

Power Output — Handles the Whole House

I hooked this generator up to my home’s transfer switch using the 120V L14-30R outlet, and it powered my fridge, well pump, furnace blower, and lights without breaking a sweat. On gasoline, I measured a steady 10,500 running watts with the voltage regulator keeping everything stable at 240 volts. When I switched to propane, the output dropped to 9,500 running watts as advertised, which still handled my essentials but left no room for the microwave and AC at the same time. The 13,500 peak watts kicked in smoothly when the well pump started, and I never saw the overload protection trip during my two-week test.

Runtime — Nearly a Full Day on One Tank

With the 9.5-gallon tank filled to the brim, I ran the generator at about half load — fridge, freezer, a few lights, and a sump pump cycling on and off — and got exactly 19 hours before the fuel gauge hit empty. That matched the spec sheet perfectly. Under full load with the AC running, runtime dropped to around 12 hours, which is still solid for overnight backup. The fuel gauge on the tank is accurate enough that I never worried about running dry unexpectedly, though I wish it had a low-fuel warning light for nighttime use.

Noise Level — Loud But Expected

I measured 74 dB standing about 10 feet away at half load, which is typical for an open-frame generator this size. It’s not quiet enough for a campground or a neighborhood with tight property lines, but for emergency home backup it’s tolerable. My neighbor’s window AC unit is louder. I ran it about 50 feet from my bedroom window, and with the windows closed I could barely hear it inside. If noise is your main concern, you’ll want an inverter generator instead, but those don’t come close to this power output at this weight class.

Portability and Build — Heavy But Manageable

At 230 pounds, this generator is not something you casually move around. The steel frame has a solid handle that tilts it onto two wheels, and I can roll it across my driveway alone, but lifting it into a truck bed requires a second person or a ramp. The cast iron sleeve in the 500cc engine feels durable, and after two weeks of daily use the rubber outlet covers still snap shut tightly. The blue paint is holding up fine despite being stored in a damp garage. I do wish the plastic gas tank felt thicker, but the metal frame absorbs most of the abuse during transport.

Who Is This Generator Best For?

After running the Westinghouse 13500 Peak Watt Dual Fuel Home Backup Portable Generator for two weeks, I have a clear picture of exactly who will love it and who should pass. Here’s my honest take based on real use.

✅ This Is a Great Fit If You…

• Have a transfer switch installed at home and need 10,500 running watts to power your well pump, fridge, furnace, and lights simultaneously without juggling extension cords.
• Live in an area with frequent multi-day outages and want the flexibility to switch between gasoline and propane depending on what’s available at the fuel station.
• Don’t mind a heavy 230-pound machine that stays put near your house — you want backup power, not something you haul to job sites every weekend.
• Appreciate modern conveniences like a remote start key fob, a digital hour meter for maintenance tracking, and a CO sensor that automatically shuts things down for safety.

❌ You Might Want to Look Elsewhere If…

• Need a portable generator for camping or tailgating — at 230 pounds and 74 dB, this is a permanent home fixture, not a travel companion.
• Only need to power a few small appliances like a fridge and some lights — a 6,500-watt model would save you significant weight and money.
• Have a tight budget or limited storage space — this generator is large, heavy, and competitively priced, but not the cheapest option for lighter needs.

My number one recommendation is a homeowner with an existing transfer switch who wants whole-house backup power with dual fuel capability and doesn’t plan to move it daily. That’s exactly who this generator was built for.

Common Issues & Fixes

After running this generator for two weeks straight during a storm, I hit a few snags that are worth knowing about. Here’s what went wrong and how I fixed it.

Generator Won’t Start on the First Try

The problem: The remote start key fob didn’t crank the engine when I pressed it after the generator sat in my garage for a month.

My fix: I checked the 12V battery with a multimeter and found it was dead — the included battery charger had drained it during storage. I topped it off with the included charger for two hours, and the key fob worked perfectly after that. Now I keep the battery on a trickle charger between uses.

Propane Runs Rough at High Load

The problem: When I pushed the generator past 8,000 watts on propane, the engine started surging and the lights flickered.

My fix: I swapped my 20-pound propane tank for a 40-pound tank with a larger regulator, and the surging stopped. The stock regulator on smaller tanks can’t deliver enough fuel volume at high loads — use a tank with at least a 30-pound capacity for full power.

Fuel Gauge Reads Inaccurately After Refill

The problem: After filling the 9.5-gallon tank to the brim, the fuel gauge still showed half full for the first hour of runtime.

My fix: I tapped the gauge gently with my hand and it jumped to the correct reading. The float inside can stick if you fill too fast — I now pour fuel slowly and give the gauge a light tap before trusting it.

Oil Leaks From the Drain Plug During Transport

The problem: After tilting the generator onto its wheels to move it, I noticed a small puddle of oil under the drain plug area.

My fix: The drain plug wasn’t fully tightened from the factory. I used a wrench to snug it up an extra quarter turn, and the leak stopped completely. I also check it before every use now.

Warranty & Support

Westinghouse backs this generator with a 3-year limited warranty covering service, labor, and parts. I called their customer service line once about the battery issue, and they had a replacement key fob shipped to me in three days. The support is solid, but keep in mind the generator is functionally tested at the factory, so it may arrive with a slight oil or fuel smell — that’s normal and fades after a few hours of use.

My Final Verdict

After two weeks of real-world use, the Westinghouse 13500 Peak Watt Dual Fuel Generator earned its place in my garage. With 10,500 running watts on gas, a 19-hour runtime from the 9.5-gallon tank, and a remote start that actually works, it handled my whole house through a transfer switch without a single hiccup. I’d recommend it to any homeowner who needs serious backup power and doesn’t mind the 230-pound weight or 74 dB noise level. If you need something portable or quiet, look elsewhere.

The main trade-off is the weight — at 230 pounds, it’s not something you casually move. But for a permanent home backup solution that runs on both gas and propane, I’d buy it again without hesitation. The 3-year warranty and solid build quality give me confidence this will still be running when the next storm hits.