Gas, propane, dual fuel or solar: which generator should I buy?
Pick the power source that matches the emergency you are planning for. The actual recommendations come first. The technical generator-school stuff is below them.
etrailer 333-0005 Dual-Fuel Generator
This is the generator LivSolv actually owns and uses. We love the fuel flexibility, electric start with recoil backup, RV outlet, wheels and enough power for substantial appliance loads.
Output: 4,500 starting / 3,600 running watts on gasoline. 4,050 starting / 3,250 running watts on propane.
Think refrigerator + freezer + lights + internet + chargers with room for another moderate load, as long as combined running and startup demand stays inside its limits.
How long? etrailer publishes about 14 hours at half load on its full 5-gallon gasoline tank. Lighter loads can last longer; heavier loads shorten runtime.
Five more good choices
Champion 201323 2500W Dual Fuel Inverter
1,850 running watts gas · 1,665 propane · 43.2 lb
A refrigerator or freezer plus Wi-Fi, lights, phones and a laptop is a realistic essentials setup if startup surge stays inside its limits.
Runtime: Champion publishes up to 11.5 hours on gasoline or 25 hours on a 20-lb propane tank, both at 25% load.
Honda EU2200i
1,800 running watts · 2,200 max · 47.4 lb · inverter output
Honda lists refrigerator/freezer, microwave, lights, fan, computer and garage-door opener among compatible common applications, but not all at once. For an outage, think refrigeration plus modest electronics and lighting while managing larger loads.
Runtime: 3.2 hours at rated load or 8.1 hours at quarter load on its 0.95-gallon tank.
Sportsman GEN4000LP
3,250 running watts · 4,000 surge · LPG only
Enough output for a refrigerator/freezer, lights, fans, chargers and other moderate 120V household loads, provided the combined running and startup demand stays within 3,250/4,000 watts.
Runtime: Sportsman publishes about 10 hours at 50% load on a 20-lb propane cylinder.
BLUETTI AC200L Solar Generator
2,048Wh battery · 2,400W AC output · up to 1,200W solar input
Excellent for refrigerator/freezer duty, Wi-Fi, phones, laptops, lighting and many ordinary 120V appliances within its 2,400W output. A typical refrigerator can be thought of in roughly the 16–28 hour planning range on this battery before adding solar, but actual refrigerator consumption varies widely.
Solar refill: BLUETTI rates a full recharge at roughly 2.5 hours under ideal conditions at the full 1,200W solar input. Real weather usually takes longer.
EcoFlow DELTA Pro 3 Solar Generator
4,096Wh battery · 4,000W continuous AC · 8,000W surge · 120/240V · up to 2,600W solar input
Its larger battery and 120/240V output open the door to substantially more household equipment than a small power station. It can cover refrigeration, electronics and multiple ordinary loads with far more headroom, and EcoFlow allows expansion beyond the base 4kWh battery.
Runtime: there is no honest single-hour number because the loads can range from a 10W router to multi-kilowatt appliances. As a planning example, a steady 500W combined load is roughly a 6–7 hour battery job after allowing for losses, before solar replenishment.
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Want the explanation behind the picks?
Powering a refrigerator + freezer →Solar recharging →Build a three-day system →Every gasoline or propane generator produces carbon monoxide. Run it outdoors, at least 20 feet from the home and from doors, windows and vents, with exhaust directed away. Never run one in a garage, basement, crawlspace, camper or other enclosed or partly enclosed area. Use working battery-powered or battery-backup CO alarms indoors. Battery power stations do not produce combustion exhaust and can be used indoors according to manufacturer instructions.
Now, the generator-school part
Running watts vs starting watts
Running watts are what equipment needs after it is operating. Motors and compressors can briefly need much more power when they start. List the loads you truly need, check each device's running and startup demand, then leave margin rather than operating at the generator's absolute limit.
Gasoline vs propane vs solar in more detail
Gasoline normally gives a combustion generator its highest output. Propane stores far better and avoids stale gasoline sitting in a carburetor. Dual fuel gives you both choices. Solar generators trade fuel dependence for battery-capacity and sunlight dependence. None is universally best, which is why layered systems are so resilient.
How to make fuel and battery power last longer
Do not automatically run a fuel generator 24 hours a day. Many households can run it during higher-demand periods, cool refrigeration and recharge a battery station, then shut it down. With batteries, avoid wasting stored energy on resistance heating and other high-draw loads when lower-energy alternatives exist.
Use a fuel generator to charge batteries
A hybrid setup can be extremely effective. Let the generator handle large loads and rapidly recharge a battery station while it is already running. Then shut the noisy fuel-burning machine down and use the battery for quiet overnight loads such as Wi-Fi, phones, lights and electronics. Solar can keep adding energy whenever conditions allow.
Connecting to the house
Never improvise a connection into household wiring. Powering home circuits requires appropriate transfer equipment and installation. Backfeeding through a receptacle can electrocute utility workers and other people.
Do these free things before buying anything
Walk the house: write down what actually stops working during an outage, including well pump, sump pump, furnace blower, refrigerator, freezer, medical equipment and internet.
Read the labels: record running watts and startup requirements for the loads you care about.
Decide what can take turns: you may not need to run the microwave, freezer and other heavy loads simultaneously.
Check what you already own: extension cords, propane cylinders, power banks, batteries and solar panels may change what generator size you need.
Practice: know where a combustion generator will sit safely, how cords reach the loads and how to start and shut everything down before an emergency.
The system is more than the generator
For fuel generators, plan outdoor-rated cords or transfer equipment, fuel, engine oil, safe weather protection and CO alarms. For solar generators, plan enough compatible panel wattage, correct cables and a safe place to deploy panels in actual sun.
Common failures are mundane: cords too short, missing adapters, stale fuel, dead starter batteries, panels sitting in shade, or buying a battery with plenty of watt-hours but not enough inverter output for the appliance.