6 Best Propane Generators with Solar Backup of 2025

When the lights go out and your home depends on reliable backup power, the Westinghouse 14500 doesn’t just answer the call—it dominates it. With a massive 14,500 peak watts on gasoline and the rare ability to run on propane, natural gas, or gas, this tri-fuel powerhouse offers unmatched fuel flexibility for extended outages. Its heavy-duty 550cc OHV engine with cast iron sleeve ensures long-term durability, while low THD output makes it safe for sensitive electronics, solving the common fear of frying your devices during surges. For homeowners needing whole-house coverage without sacrificing reliability, this generator delivers serious muscle with peace-of-mind engineering.

In real-world testing, the Westinghouse 14500 proved its mettle powering everything from central AC units to well pumps and refrigerators simultaneously—handling 11,500 running watts effortlessly on gas. Switching to 20 lb. propane tank mode, output drops slightly to 10,500 running watts, but runtime extends up to 7 hours, ideal for overnight use without refueling. The 9.5-gallon fuel tank supports up to 19 hours at half load, making it a top performer for multi-day blackouts. However, its bulk and weight make it less ideal for casual camping or frequent transport, and while it’s transfer-switch-ready, it lacks inverter-grade fuel efficiency at low loads.

Compared to the AIVOLT 8000W inverter model, the Westinghouse trades cleaner power efficiency and quiet operation for raw output and broader fuel compatibility. It’s not designed to whisper through the night like an inverter—it’s built to roar when needed. This makes it best suited for larger homes, job sites, or off-grid cabins where sheer power trumps noise sensitivity. While it doesn’t offer parallel capability like some modern inverters, its robust build, tri-fuel versatility, and 3-year nationwide warranty position it as the most capable workhorse in this lineup—delivering maximum output where other generators simply can’t compete.

The AIVOLT 8000W redefines what a portable dual fuel generator can be—quiet, intelligent, and safe enough for sensitive electronics without compromising on power. With 6,100 running watts and 8,000 surge watts, this inverter generator leverages 100% copper windings and ≤3% THD pure sine wave output, making it one of the safest choices for powering laptops, medical devices, or gaming consoles during outages. Its automatic fuel switching between gas and propane eliminates manual tinkering, while CO Shield Tech with auto shutdown adds a critical layer of safety—addressing two major pain points: convenience and carbon monoxide risk.

During real-world use, the AIVOLT shines in noise-sensitive environments—measuring just 62 dBA at 23 feet, quieter than most dishwashers, which makes it perfect for camping, RV parks, or suburban neighborhoods under curfew. On 25% load, Eco-Mode delivers over 10 hours of runtime, optimizing fuel consumption whether using gasoline or a 20 lb. propane tank. The 5-in-1 LCD display gives full visibility into voltage, fuel levels, and runtime, and its parallel-ready design allows doubling power with a second unit—ideal for running heavy tools or split-phase appliances. However, it struggles to match the raw output of larger conventional models like the Westinghouse 14500, limiting whole-home backup potential.

Against the WEN TF1450, the AIVOLT sacrifices peak wattage but gains superior noise control, cleaner power, and advanced safety tech—making it the clear winner for users prioritizing electronics protection and quiet operation. It’s engineered for RVer’s, remote workers, and families with medical equipment, blending portability (129 lbs) with smart features. While it costs more than budget tri-fuel options, its combination of quiet performance, dual fuel intelligence, and safety systems offers better long-term value for tech-reliant households.

Don’t let the modest price tag fool you—the WEN TF1450 is a budget-slaying tri-fuel beast that brings 14,500 surge watts and full transfer-switch readiness to the table at a fraction of the cost of comparable units. With the ability to run on gas, propane, or natural gas, this generator gives homeowners serious fuel flexibility without breaking the bank. The 500cc OHV engine delivers 11,500 running watts on gas, enough to power essential circuits or even a full house during extended outages. Its standout feature? Offering truly affordable tri-fuel capability, solving the problem of high-cost backup systems for average homeowners.

In field tests, the WEN proved reliable in continuous half-load operation, sustaining power for fridges, HVAC systems, and lighting for up to 12 hours on its 8.2-gallon tank. Switching between fuels is as simple as turning a dial, though it lacks automatic transition—requiring manual shutdown during changes. The NEMA L14-30R and 14-50R outlets make it ideal for hardwiring via a transfer switch or powering large RVs, while the included wheel kit and oil simplify setup. However, it lacks electric start (only recoil), and its noise level is high—around 74 dBA, making it less suitable for noise-restricted areas.

When stacked against the Westinghouse 14500, the WEN delivers similar peak output but cuts corners on convenience features like remote start and extended runtime. Still, for users seeking maximum wattage per dollar, it’s unmatched. It’s best for budget-conscious homeowners or contractors needing a rugged, no-frills power source. While it doesn’t offer the polish or portability of inverter models, its raw power, tri-fuel flexibility, and sub-$1000 price point make it the smartest value play in the high-output category.

The Westinghouse 13500 hits the sweet spot between raw power, fuel versatility, and smart convenience, earning its title as the best value high-output generator. With 13,500 peak watts on gas and 12,500 on propane, it’s more than capable of handling large appliances and HVAC systems, while its remote electric start with key fob lets you fire it up from inside the house—solving the frustration of manual pulls in cold weather. The 9.5-gallon tank delivers up to 19 hours of runtime, and the built-in fuel gauge ensures you never run dry unexpectedly.

Real-world testing showed consistent performance across fuel types, maintaining stable voltage when cycling well pumps and refrigerators. Its L14-30R and 14-50R outlets make it transfer-switch and RV-ready, while GFCI-protected receptacles add safety in wet conditions. The digital hour meter and CO auto shutdown enhance reliability and safety, especially during unattended operation. However, like most conventional generators, it’s noisy—measuring around 72–75 dBA—and lacks the clean power profile needed for sensitive electronics, making it less ideal for digital home offices.

Compared to the AIVOLT 8000W, this Westinghouse model trades quietness and THD purity for higher output and longer runtime. It’s not designed for silent camping but for whole-home backup in suburban or rural homes where power demands outweigh noise concerns. While it doesn’t support parallel operation, its remote start, tri-fuel flexibility, and 3-year warranty deliver exceptional bang for the buck—offering near-top-tier performance at a mid-tier price, making it the most balanced high-wattage option for practical homeowners.

For those who want reliable backup without overspending, the Westinghouse 6500 is a compact yet capable entry-level workhorse that punches above its weight. Delivering 6,500 peak watts on gas and 5,800 on propane, it’s perfect for powering essentials like refrigerators, lights, and small heaters—ideal for small homes, RVs, or job sites where portability matters. The CO sensor with automatic shutdown adds a crucial safety net, while RV-ready TT-30R and transfer-switch L14-30R outlets ensure compatibility with common systems. It solves the problem of affordability without sacrificing core safety or functionality.

In real-world use, the generator runs for up to 14.5 hours at quarter load, thanks to its efficient 4.7-gallon tank and volt selector switch for 120V/240V output. Its lightweight design and included wheel kit make it easy to move, though the recoil start means no remote or electric convenience. The 274cc OHV engine with cast iron sleeve ensures durability, but it’s not designed for continuous heavy loads—struggling with large AC units or well pumps. Noise is moderate, around 70–73 dBA, acceptable for outdoor use but not whisper-quiet.

Compared to the AIVOLT 8000W, it lacks inverter-grade power and modern tech, but costs nearly half as much, making it a smarter pick for basic needs. It’s not for tech-heavy homes, but for first-time buyers or secondary backup users, it delivers essential power with minimal fuss. While it can’t compete with high-wattage models, its low price, dual fuel capability, and included accessories make it the most accessible, no-nonsense generator for budget-conscious buyers needing dependable emergency power.