A portable generator is the baseline backup-power tool for storm season, camping, or job sites — the right choice depends mostly on how many watts your must-have appliances draw and how much noise and fuel flexibility matter to you.
Honda EU2200i Portable Inverter Generator
Consistently named “Best Overall” for small/quiet use across 2026 guides, the EU2200i is easy to transport and operate, delivering clean, quiet inverter power (safe for sensitive electronics) at 2,200 peak / 1,800 running watts from about 47 lbs. It is praised for reliability, quiet operation, and unusually strong resale value, even though it is not the cheapest option in its class.
Champion Power Equipment 9200-Watt Dual Fuel Generator
Named “Best Portable Generator” for most homes in one major roundup, this unit carries enough output to run the circuits that matter during an outage through a transfer switch, with remote electric start and the flexibility to run on either gasoline or propane depending on what fuel is available.
Westinghouse WGen9500DF
For maximum portable capacity, this model delivers class-leading output at a competitive price, with 12,500W starting capacity that can handle virtually any residential motor load — well beyond what a typical storm-prep generator needs, but useful if you want serious headroom.
For quiet, dependable backup power for a few key appliances, the Honda EU2200i remains the benchmark. If you need to run most of a home’s essential circuits through a transfer switch, the Champion 9200-Watt Dual Fuel offers the best practical balance of power and fuel flexibility.
DuroMax XP13000EH Dual Fuel Generator
DuroMax built its reputation on high-output dual fuel generators at lower price points than Generac or Westinghouse, and the XP13000EH continues that with 13,000 starting watts / 10,500 running watts on gasoline (slightly less on propane), electric start, and a wheel kit included standard rather than sold separately. It’s a strong pick for buyers who want Champion/Westinghouse-level capacity but at a noticeably lower price per watt.
Generac GP3500iO Portable Inverter Generator
A lighter, quieter alternative to the big dual-fuel units above, the GP3500iO produces clean inverter power safe for electronics at 3,500 starting / 3,000 running watts, with a PowerDial control for simplified start/run/stop operation and roughly 8 hours of runtime at half load on a single tank.
How to size a portable generator for your home
Start by listing the specific circuits or appliances you need to power during an outage — refrigerator, well pump, furnace blower, a few lights, and phone chargers is a common baseline — and add up their running watts, then check the single highest starting watts figure (motors like refrigerator compressors and well pumps draw a surge 2-3x their running wattage for a second or two at startup). Your generator’s starting watts rating needs to cover that single highest surge on top of everything else already running. For most households, that lands somewhere in the 5,000-9,000 running watt range; going much higher mainly adds cost and fuel consumption without added benefit unless you’re running central air conditioning or an electric range. A transfer switch, installed by a licensed electrician, is the safest way to connect a generator to your home’s panel — it’s legally required in many areas and prevents the serious hazard of backfeeding power into utility lines, which can injure utility workers.
Frequently Asked Questions
What’s the real difference between running watts and starting watts?
Running watts (sometimes called rated watts) is the continuous power a generator can sustain; starting watts (or surge/peak watts) is a brief higher output for a few seconds to handle a motor’s initial startup draw. A generator’s starting watts figure is always higher than its running watts, and buyers should size based on running watts for continuous load plus enough surge headroom for the single largest motor they’ll run.
Is dual fuel worth paying more for?
Dual fuel (gasoline and propane) adds flexibility when one fuel type is scarce — propane doesn’t degrade in storage the way gasoline does over months, making it a better choice for a generator that sits unused between emergencies. The tradeoff is a roughly 10-15% power output reduction when running on propane versus gasoline, so size the generator with that difference in mind if propane is your primary planned fuel.
How often should I run a backup generator when it’s not in use?
Most manufacturers recommend running a portable generator under load for about 20-30 minutes every month, which keeps the carburetor from gumming up with stale fuel residue and verifies the unit still starts reliably before you actually need it in an outage. Skipping this is one of the most common reasons generators fail to start during the one emergency they’re bought for.
Can I run a portable generator inside a garage with the door open?
No — carbon monoxide builds up even in a well-ventilated garage with the door open, and CO poisoning from portable generators is a leading cause of generator-related deaths. Always run a portable generator outdoors, at least 20 feet from windows, doors, and vents, with the exhaust pointed away from the house. Many newer models, including several listed above, include a CO sensor that automatically shuts the unit down if levels become dangerous — a worthwhile safety feature to prioritize when comparing models.
Do these generators need a special oil for break-in?
Most gas generator engines ship with little or no oil installed and require a specific break-in procedure — typically running on standard SAE 30 or 10W-30 oil for the first 20-25 hours before switching to a synthetic blend if the manufacturer recommends one for ongoing use. Check the printed manual rather than assuming all small engines use identical oil specs, since this varies between Honda, Champion, Generac, and DuroMax engines.
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