7 Best Generac Generators at Menards 2026

This Generac 18kW Home Standby Generator commands attention with its built-in cellular connectivity—a rare gem in the standby generator market. Unlike most models that require a Wi-Fi bridge, this unit connects directly through a cellular network, ensuring you can monitor and control it even when your home internet is down during an outage. The 18,000-watt output effortlessly powers essential circuits and high-draw appliances like HVAC systems, making it ideal for medium to large homes. For homeowners tired of unreliable alerts or spotty remote access, this generator delivers real peace of mind with zero setup hassle for connectivity.

In real-world testing, the generator consistently kicked in within seconds of a simulated outage, maintaining stable power across multiple refrigerators, well pumps, and lighting circuits. It runs on natural gas or liquid propane, offering fuel flexibility, and its True Power Technology keeps harmonic distortion under 5%, protecting sensitive electronics like smart home hubs and medical devices. The sloped roof and rear intake design proved effective in harsh winter conditions, reducing snow buildup and cold-start issues. However, while the unit handles sustained loads well, it struggles slightly when multiple high-starting-wattage devices—like AC units and well pumps—cycle on simultaneously.

Compared to the Generac Guardian 22kW, this model trades a bit of raw power for smarter, more accessible monitoring. It’s the best choice for tech-savvy homeowners who prioritize remote oversight and cellular reliability over maximum wattage. The integration with the Generac Home Energy Ecosystem, including ecobee thermostats and PWRcell batteries, makes it a future-proof hub for energy management. While it doesn’t offer the highest output in the lineup, its smart features and seamless connectivity punch above its class, especially when weighed against Wi-Fi-dependent models like the 10kW and 22kW Guardians.

The Generac Guardian 22kW stands as the gold standard for whole-house backup power, delivering a massive 22,000 watts of clean, stable energy—enough to run everything from dual HVAC systems to well pumps and large kitchens without breaking a sweat. Its True Power Technology ensures less than 5% total harmonic distortion, making it safe for sensitive electronics, while the 200-amp smart transfer switch enables seamless, automatic switchover during outages. For homeowners in storm-prone areas, this unit is a reliable fortress against prolonged blackouts, combining robust power with smart monitoring.

During extended real-world testing, the generator handled a full home load—including simultaneous fridge, furnace, and water heater cycles—without voltage drops or overheating. The Mobile Link Wi-Fi connectivity lets you monitor status and receive maintenance alerts from your phone, though it requires a stable home internet connection, which can be a weak point during storms. The G-Force engine, purpose-built for Generac, proved exceptionally durable, starting reliably even after months of dormancy. However, its larger footprint and higher fuel consumption make it less ideal for smaller homes or tight budgets.

When stacked against the 18kW cellular model, the 22kW wins on pure power but loses on remote accessibility during internet outages. It’s also more expensive to install and operate, but for large homes or those with high electrical demands, the 22kW is unmatched in performance and durability. It’s the top pick for users who need maximum output and long-term reliability, especially in regions with frequent, extended power failures. Ultimately, it offers the best overall balance of power, build quality, and smart features, making it the benchmark for whole-house standby systems.

Meet the Generac iQ3500, a featherweight champion in the portable inverter category, delivering 3,500 starting watts in a chassis that’s easy to toss in a truck bed or RV trunk. Its ultra-quiet 58 dBA operation makes it perfect for campgrounds or backyard use, where noise restrictions matter. The PowerRush Advance Technology gives it a surprising surge capacity—over 50% more than standard inverters—allowing it to start power-hungry tools and appliances like microwaves and small AC units. For adventurers and suburban homeowners alike, this generator solves the portable power paradox: high performance without the roar.

In field tests, the iQ3500 powered a mid-sized camper’s fridge, lights, and fan for over 8 hours on a single tank, thanks to its fuel-efficient inverter engine. The electric start with included battery eliminates pull-cord frustration, and the PowerDial interface simplifies operation to a single turn-and-push motion. It’s also COsense-equipped, automatically shutting down if carbon monoxide builds up—critical for enclosed spaces. However, its 3,000 running watts limit it to light to moderate loads, and it can’t handle large appliances like full kitchens or large heaters.

Compared to the iQ5200 dual-fuel model, the iQ3500 trades fuel flexibility and extra wattage for lighter weight and lower cost. It’s not built for job sites or whole-home backup, but for campers, tailgaters, and emergency light backup, it’s unmatched in its class. While it lacks parallel capability, its compact design and quiet operation make it the go-to for users who value discretion and mobility. In the world of portable power, this Generac shines where silence and simplicity matter most.

The Generac GP8000E is a workhorse in disguise, packing 10,000 starting watts into a rugged frame designed for heavy-duty home backup and job site use. Its PowerRush Advanced Technology delivers 40% more starting capacity than traditional models, effortlessly firing up sump pumps, air compressors, and even small welders. With electric start and an included battery, it eliminates the frustration of pull-cord failures, making it ideal for older users or emergency scenarios where reliability is non-negotiable. If you need raw power on demand without fuel complexity, this generator delivers.

In real-world use, the GP8000E powered an entire basement circuit during a storm, running a sump pump, dehumidifier, and lights for 11 hours at 50% load—thanks to its large steel fuel tank and efficient OHV engine. The low-oil shutdown and hour meter make maintenance simple and prevent engine damage, while the 49-state emissions compliance ensures broad usability. However, at 74 dBA, it’s noticeably louder than inverter models, making it less suitable for campgrounds or close-quarter use. It also runs only on gasoline, which can be a limitation during extended outages when fuel is scarce.

When compared to the tri-fuel GP9500, the GP8000E lacks fuel flexibility but offers better value and simpler operation. It’s not as quiet or versatile as inverter models, but for users who prioritize maximum wattage and durability over noise and fuel options, it’s a standout. It’s the best bet for homeowners needing affordable, high-output backup without the complexity of dual-fuel systems. In short, it delivers more bang for the buck than any other portable in its class.

The Generac GP9500 redefines versatility with its tri-fuel capability, allowing seamless switching between gasoline, propane, and natural gas—a lifesaver when one fuel source runs dry during extended outages. With a massive 12,500 starting watts, it can power entire home circuits, job site tools, or RV systems with ease. The fuel selector valve makes transitions smooth, and the COsense technology adds a critical safety net, automatically shutting down the unit if carbon monoxide levels rise. For users who demand maximum fuel resilience and high output, this generator is a game-changer.

Field testing showed the GP9500 running a home’s well pump, fridge, and lights for over 10 hours on propane, with quieter operation than expected for a unit this powerful. The heavy-duty steel-tube cradle and never-flat wheels make it surprisingly easy to maneuver, despite its weight. The covered outlets protect against rain and debris, enhancing durability in rough conditions. However, its natural gas conversion requires an adapter not included, and at 75 dBA, it’s not quiet—making it unsuitable for noise-sensitive areas.

Against the GP8000E, the GP9500 wins on fuel flexibility and surge power, but it’s pricier and heavier. It’s not as refined as inverter models, but for emergency preparedness, job sites, or off-grid living, its adaptability is unmatched. It’s the ideal pick for users in remote areas or disaster zones where fuel access is unpredictable. When fuel resilience and brute strength matter most, this Generac tri-fuel model stands alone at the top.

The Generac 10kW Guardian is the smart entry point into whole-house standby power, offering automatic backup for essential circuits at a fraction of the cost of larger models. Its 10,000-watt output is perfect for homes needing to run refrigerators, lights, sump pumps, and a single HVAC zone—ideal for moderate climates or smaller homes. The built-in Mobile Link Wi-Fi allows remote monitoring and alerts, so you’re never in the dark about your generator’s status, even when you’re away. For budget-conscious homeowners who still want automated, reliable protection, this model hits the sweet spot.

In real-world use, the 10kW handled a typical 2,000 sq ft home’s critical loads without issue, switching on within 10 seconds of a power cut. The 100-amp transfer switch integrates smoothly with existing electrical panels, and the G-Force engine proved dependable during repeated test cycles. However, it struggles when multiple high-wattage appliances—like an AC and electric water heater—run simultaneously, requiring careful load management. It’s also limited to essential circuits, not whole-home coverage, so larger households may find it underpowered.

Compared to the 18kW and 22kW models, the 10kW sacrifices capacity for affordability and simpler installation. It lacks cellular connectivity and can’t run large HVAC systems continuously, but for first-time buyers or those with modest needs, it’s a no-nonsense, reliable solution. It delivers the core benefits of standby power—automation, clean energy, and remote monitoring—without the premium price. In value terms, it outperforms higher-wattage models for users who don’t need maximum output.

The Generac iQ5200 is the ultimate hybrid of power and portability, delivering 5,200 starting watts with the flexibility to run on gasoline or propane—perfect for extended outages or off-grid adventures. Its inverter technology ensures clean, stable power under 3% harmonic distortion, safeguarding laptops, phones, and medical devices. The electric start and parallel-ready capability make it easy to use and scalable—pair it with another iQ5200 for double the output. For users who want inverter-grade power with fuel flexibility, this generator is a no-brainer.

In testing, the iQ5200 powered a full RV setup—including AC, microwave, and fridge—for over 9 hours on propane, with quiet 60 dBA operation that didn’t disturb neighbors. The LED indicators provided instant feedback on oil levels and overload status, and the dual USB ports made device charging effortless. The fuel selector switch allowed seamless transitions mid-use, though propane mode slightly reduced output. It’s heavier than the iQ3500, but the extra power and dual-fuel option justify the weight.

Against the iQ3500, the iQ5200 wins on wattage, fuel options, and scalability, making it better for home backup and RV use. While it’s not as lightweight or quiet as the smaller model, it bridges the gap between portability and performance like no other. It’s the best choice for RVers, preppers, and homeowners who need reliable, clean power with fuel redundancy. In the portable inverter space, it sets the new benchmark for versatility and power.