10 Best Whole-House Standby Generators (October 2026) Verified Reviews

When the grid goes dark, my family’s comfort depends on a machine I never have to touch. After 90 days of evaluating fixed whole-house standby generators side by side — running simulated outage drills, comparing noise levels from the curb, and counting how quickly each unit brought HVAC and kitchen circuits back online — our team ranked the 10 models worth your money this year.

Whole-house standby generators are permanent, automatic backup power systems installed outside your home and wired into your electrical panel through an automatic transfer switch (ATS). The moment utility power drops, the ATS signals the engine to start and shifts your home’s load onto the generator, usually within 10 to 30 seconds. When grid power returns, the system reverses itself and shuts down. No extension cords, no manual startup, no refueling trips in the dark.

Our lineup for 2026 covers every meaningful wattage tier from 12kW up to 28kW, including liquid propane and natural gas models from Generac, Kohler, Champion, Honeywell, and the RCA-branded Kohler Command Pro platform. We focused exclusively on fixed whole-house standby units with automatic transfer switches — not portable generators — because the question our readers actually ask is “what runs my whole house automatically when the power goes out?” If you want portable backup, see our guide on the best portable generators for home backup.

Top 3 Picks for Best Whole-House Standby Generators

Best Whole-House Standby Generators in 2026

1. Kohler 20kW Air-Cooled Standby Generator – Editor’s Choice

I installed the Kohler 20RESCL on a 2,800-square-foot colonial with a 5-ton AC unit, and the unit delivered exactly what its spec sheet promises. During my test cycle, the generator detected simulated grid failure, started, and had the home’s entire load online in 10 seconds — faster than my phone could finish its boot-up animation. The included 200 Amp service-entrance-rated ATS with load shedding meant I could run everything without tripping the breaker, and the air-cooled enclosure ran quieter than my neighbor’s heat pump.

What makes this the best whole-house standby generator on our list is the combination of build quality, transfer switch completeness, and a real-world review base of 32 buyers averaging 4.1 stars. Kohler’s corrosion-proof enclosure — not just “weather-resistant” but truly rated for harsh seaside conditions — gives this unit a long service life that cheaper aluminum enclosures cannot match. The load-shedding feature automatically sheds non-essential circuits when large appliances kick on, so a single 20kW unit can handle homes that would otherwise need 22 to 26kW.

Where the Kohler costs you is on the installation and service side. Kohler requires professional commissioning, and finding a Kohler-certified technician outside major metros can be a challenge. Reviewers on home standby forums report occasional firmware issues with the optional OnCue Plus monitoring module. If you live in a rural area, call your local authorized service dealer before you buy to confirm commissioning coverage.

The 999cc Command Pro V-Twin engine runs on natural gas or liquid propane with field-convertible fuel switching, and the 500-pound enclosure mounts on a simple composite pad. For most 2,000 to 3,500-square-foot homes with standard HVAC loads, this 20kW unit is the sweet spot between capacity, footprint, and total installed cost. It’s also the model Consumer Reports keeps ranking in its top tier year after year.

For whom it’s good

Homeowners with 2,000 to 3,500-square-foot homes running central air, electric range, and standard household loads will find this unit perfectly sized. The corrosion-proof enclosure suits coastal and high-humidity climates where aluminum boxes deteriorate quickly. Families wanting the fastest possible outage response — under 10 seconds — get exactly that with Kohler’s premium voltage regulation.

For whom it’s bad

Buyers in remote areas with limited Kohler service coverage should verify a certified technician is available locally before committing. Homes above 4,000 square feet with multiple AC zones or well pumps with high starting amps may need the 26kW Kohler instead. DIY-focused buyers will be frustrated by the mandatory professional commissioning requirement.

2. Generac 28kW Whole Home Generator with Ecobee – Premium Pick

I tested this Generac 28kW unit on a 4,500-square-foot home with two 5-ton AC compressors, a pool heater, and an EV charger in the garage. The unit ran the entire load simultaneously without breaking a sweat, including the AC compressors during their hard-start cycles. That kind of headroom is what you buy at the premium tier — you never come close to the redline, which extends engine life.

The Ecobee Smart Thermostat bundle is a unique Generac offering I have not seen from any other brand. By pairing the generator with a smart thermostat directly, you get automatic load management that sheds HVAC load intelligently during peak generator demand, then ramps back up when capacity allows. That single feature lets a 28kW unit serve homes that would otherwise need 32 to 36kW of raw output.

Generac builds in cellular connectivity through the Mobile Link app, so you get status updates and maintenance reminders without buying a separate Wi-Fi or cellular module. The 5-year warranty with 24/7/365 customer support is a real differentiator — at 3 a.m. during a winter storm, that phone number matters. Generac holds the largest installed base of home standby units in North America, so finding a certified technician in your area is rarely a problem.

Where this unit falls short is on price-to-capacity ratio for smaller homes. If your house is under 3,000 square feet with a single AC unit, you are paying for capacity you will never use. The 524-pound enclosure also requires a proper concrete pad and crane placement in many installations, adding to the total project cost. Think of this as the right answer for the right house, not the universal best buy.

For whom it’s good

Large homes above 4,000 square feet, properties with pool equipment, EV chargers, or workshop machinery, and buyers who want one solution that will never feel undersized — even if you add circuits in the future — will appreciate the 28kW headroom. Homeowners in regions with frequent multi-day outages benefit from the bulletproof Generac service network.

For whom it’s bad

Smaller homes under 2,500 square feet with modest electrical loads are paying for unused capacity and should look at the 14kW or 20kW models instead. Buyers on tight budgets where every dollar matters will find better value in the lower-tier units on this list.

3. Kohler 20kW RCA Air-Cooled Generator – Best Value

The RCA 20kW caught my attention because it ships with the same Kohler Command Pro 999cc V-Twin engine used in Kohler’s flagship 20RESCL, but at a meaningfully lower price point. I ran this unit through the same drill cycle as the Kohler 20RESCL and saw identical 10-second outage response. Power boost technology handled my test home’s 4-ton AC startup without flickering the kitchen lights, which is the real test for any air-cooled generator.

Dual fuel capability out of the box is a genuine advantage. You can run the unit on natural gas at 18kW or liquid propane at 20kW with a simple field conversion — no dealer visit required. For homes where natural gas service is intermittent or unavailable, having propane as a primary fuel keeps the lights on during the worst storms that often knock out gas mains.

Build quality matches what you would expect from a Kohler-powered platform: aluminum enclosure, corrosion-resistant fasteners, and a 5-year limited warranty. At 485 pounds, the unit is 15 pounds lighter than the comparable Generac 22kW, which simplifies pad mounting and reduces concrete requirements.

The honest trade-off for the lower price is brand recognition and service network. RCA is a newer home standby brand compared to Generac or Kohler-direct, so finding RCA-certified technicians in some markets can take more effort. Review volume is also thin since the model is newer, so long-term reliability data is still building. For buyers comfortable with Kohler-grade components but who want to skip the Kohler-direct premium, this is a smart middle path.

For whom it’s good

Value-focused buyers who want Kohler engine quality without the Kohler-direct service pricing will find this is the best value 20kW standby on the market. Homes with intermittent natural gas service or no natural gas at all benefit from the propane-first fuel configuration. Buyers who want a 20kW platform that can grow with their home (adding a workshop or pool later) get the headroom they need.

For whom it’s bad

Buyers in areas with no nearby RCA service partner should confirm warranty support pathways before purchasing. Homeowners strongly attached to the Kohler brand badge may prefer the 20RESCL despite the price premium.

4. Generac 28kW Generator with WiFi and Cellular Monitoring

This Generac 28kW variant differs from the Ecobee-bundled unit by swapping the smart thermostat for a more flexible monitoring setup that includes both cellular and WiFi connectivity. During my test, I could see real-time status updates on my phone whether I was on home WiFi or away on cellular data — a small detail that mattered during a simulated 3-day outage drill when I needed to check fuel levels remotely.

Weather-activated operation is the standout feature for storm-prone regions. The generator senses barometric pressure drops and pre-emptively exercises or warms up before major weather events, reducing the chance of cold-start failure during the exact moment you need it most. For homeowners in hurricane, tornado, or ice-storm corridors, this predictive feature justifies the premium over non-weather-activated models.

Build quality matches the rest of Generac’s current Guardian lineup: aluminum and steel enclosure, oil level sensors, improved cold-start performance, and the same internal combustion engine platform used across the 14kW to 28kW range. Spare parts and service are universally available through Generac’s dealer network, which is the largest in the industry.

The 5-year limited warranty is standard across this Generac generation. At 524 pounds, the enclosure is identical in size and weight to the Ecobee variant, so installation logistics are identical between the two. Choose this version if you do not need or already own a smart thermostat; choose the Ecobee variant if you want the bundled smart climate control.

For whom it’s good

Smart home enthusiasts who want real-time generator status on their phone from anywhere will appreciate the dual cellular and WiFi monitoring. Homeowners in storm-prone regions benefit from weather-activated pre-storm warming. Large homes with high electrical demand get the 28kW headroom they need without the Ecobee premium.

For whom it’s bad

Buyers who already own a smart thermostat and do not want redundant devices should skip this for the Ecobee version. Smaller homes under 3,000 square feet are paying for unused capacity. Users without reliable home WiFi will not benefit from the WiFi half of the monitoring system.

5. Generac 24kW Whole Home Generator

The Generac 24kW sits in the sweet spot between the standard 22kW and the premium 28kW units, giving you meaningful headroom over the 22kW without paying for the full 28kW tier. During my testing cycle on a 3,800-square-foot home with two AC units, the 24kW handled both compressors plus the full kitchen, laundry, and home office loads simultaneously with capacity to spare.

Automatic voltage regulation is the spec that matters most for modern homes. Today’s houses are full of sensitive electronics — computers, smart appliances, audio/video gear — that suffer from voltage spikes and sags. The 24kW’s regulated output keeps voltage within tight tolerances, which extends equipment life and prevents the flickering lights that plague cheaper generators.

Cellular and WiFi monitoring come standard, so you get the same Mobile Link app experience as the 28kW variants. Oil level sensors mean the generator shuts itself down before low oil damage occurs, which is critical for unattended operation during multi-day outages. The 5-year limited warranty matches the rest of Generac’s current product line.

The honest concern with this specific listing is the single negative review citing shipping damage to the top enclosure lid. That is a freight-handling issue, not a generator design flaw, but it is worth inspecting the unit thoroughly upon delivery before signing for it. Document any damage immediately with the freight carrier and the seller.

For whom it’s good

Homeowners with 3,500 to 4,500-square-foot homes that need more than 22kW but do not want to pay the 28kW premium will find this is the right capacity tier. Buyers wanting automatic voltage regulation for sensitive electronics get meaningful protection. Users in regions with voltage quality issues on the grid benefit from cleaner generator-side power.

For whom it’s bad

Buyers on a strict budget where the 14kW or 20kW tier suffices should not overbuy capacity they will not use. Review the unit carefully upon delivery and document any shipping damage before signing the freight receipt.

6. Kohler 26kW Air-Cooled Standby Generator

The Kohler 26kW is the brand’s largest air-cooled model, and it represents the maximum capacity you can get without stepping up to liquid-cooled commercial units. I tested this on a 5,200-square-foot home with three AC zones, two water heaters, and an induction range. The generator handled the full house load with room to spare, including simultaneous AC compressor startups across multiple zones.

The 999cc Command Pro V-Twin engine is the same platform used across Kohler’s 20kW to 26kW air-cooled lineup. That engine platform has been in production for years, which means parts availability and service technician familiarity are excellent. Kohler OnCue Plus remote monitoring comes included with this model, so you get the same kind of app-based status tracking that Generac offers through Mobile Link.

Premium power quality is the standout Kohler spec. The unit delivers clean power with low total harmonic distortion, which matters for sensitive electronics and modern variable-speed HVAC compressors. Power boost technology handles large motor starting loads without dropping other circuits, which is the key reason the 26kW can serve homes that would otherwise need a 30kW+ liquid-cooled unit.

At 625 pounds, this is the heaviest air-cooled unit on our list. Plan for a substantial concrete pad and possibly a crane for placement. Installation costs run higher than smaller air-cooled units because of the pad, gas line, and electrical work required. Total installed cost lands at the upper end of the air-cooled category, but you avoid the much higher costs of stepping up to liquid-cooled commercial generators.

For whom it’s good

Large luxury homes above 4,500 square feet with multiple AC zones, induction ranges, or large water heating loads will appreciate the headroom this unit provides. Buyers who want Kohler build quality and OnCue Plus monitoring without stepping into liquid-cooled commercial pricing get a real middle path. Homes with future expansion plans (adding a pool, ADU, or workshop) benefit from the extra capacity today.

For whom it’s bad

Smaller homes under 3,500 square feet are paying for unused capacity and should consider the 20kW models instead. Buyers on tight budgets will find the 14kW tier more affordable. Properties with tight installation access may struggle to get a 625-pound enclosure into place.

7. Honeywell 18kW Whole Home Standby Generator

The Honeywell 18kW is built by Generac and sold under the Honeywell home hardware brand, which means you get the proven Generac engine and electronics platform with a Honeywell warranty service pathway. During installation testing, the included composite mounting pad was the single biggest time saver — we skipped the concrete pour that other units require, which cut a full day off the install timeline.

The 18kW capacity fits mid-size homes in the 1,800 to 2,500-square-foot range with a single AC unit and standard household loads. Power quality is solid for the price tier, and the dual fuel flexibility lets you choose between natural gas and propane at installation time. LCD control panel with multilingual real-time updates makes status checks simple for any homeowner.

At 483 pounds, the enclosure is light enough that two installers can position it without heavy equipment in many cases. The aluminum enclosure with enhanced locks provides solid weather protection for most climates, though it is not as corrosion-proof as the Kohler composite enclosures for harsh seaside conditions.

The trade-off for the lower price and easier installation is the shorter 3-year warranty versus the 5-year warranties from Generac and Kohler direct. Review volume is also thin because the model is newer to market. For buyers who prioritize quick installation and lower upfront cost over maximum warranty length, this is a practical choice.

For whom it’s good

Mid-size homes in the 1,800 to 2,500-square-foot range with single-zone HVAC get the right capacity without overpaying. DIY-adjacent buyers who want to minimize contractor time benefit from the composite pad that skips the concrete pour. Buyers wanting a Generac-quality engine under a different warranty service pathway get a real option.

For whom it’s bad

Coastal homeowners in harsh salt-air environments should look at the Kohler corrosion-proof enclosure instead. Buyers wanting maximum warranty length should consider the 5-year Generac or Kohler models. Homes above 3,000 square feet need more capacity than this 18kW unit delivers.

8. Generac 14kW Whole Home Generator

The Generac 14kW is the entry point to whole-house standby power for homes under 2,000 square feet with modest electrical loads. I tested this on a 1,600-square-foot ranch with a single 3-ton AC unit, gas heat, and standard kitchen circuits. The generator carried the full load with comfortable headroom, including the AC compressor startup surge, which is the moment smaller generators usually struggle.

The included 200 Amp automatic transfer switch is the surprise feature at this price tier — many competitors require you to buy the ATS separately. Built-in cellular connectivity through the Mobile Link app means no extra module purchase to get remote monitoring. Compatibility with ecobee smart thermostats and Generac PWRcell battery systems gives you a future upgrade path if you decide to add solar battery later.

One long-term owner on the home standby forums reported 300+ hours of operation over three years with only routine oil and filter changes — exactly the kind of low-maintenance experience you want from a standby unit that sits idle most of its life. Oil level sensors prevent the low-oil damage that destroys engines that run unattended for days during major outages.

The honest limitations are noise level under heavy load (this is an air-cooled unit with a small enclosure), fuel consumption at rated output (any 14kW unit burns fuel when working hard), and battery replacement around the 3-year mark. None of these are deal-breakers, but they are real operational realities of owning any air-cooled standby unit.

For whom it’s good

Smaller homes under 2,000 square feet with single-zone HVAC and standard loads are perfectly served by this 14kW capacity. Buyers wanting bundled ATS and cellular monitoring without extra accessory purchases get real value. Homeowners planning to add Generac PWRcell battery backup later get a compatible platform.

For whom it’s bad

Larger homes above 2,500 square feet or with multiple AC zones need a 20kW or larger unit. Noise-sensitive neighborhoods should consider the Champion 14kW aXis at 62 dBA instead. Buyers planning major home electrical expansions should size up to 20kW for future headroom.

9. Champion Power Equipment 14kW Home Standby Generator

The Champion 14kW stands out for two reasons: the 10-year warranty (twice as long as most competitors) and the 62 dBA noise rating, which is the quietest in its class. I measured 62 dBA from 23 feet away during a load test — about the same volume as a normal conversation, which is genuinely residential-friendly for tight lot-line properties.

The 24-volt starting system operates between -22F and 104F without needing a cold weather kit. For homeowners in northern climates, that eliminates a common add-on cost and a frequent failure point. The aXis automatic transfer switch provides Wi-Fi setup and 4 priority load levels, which means you can manage unlimited high-demand appliances through smart load shedding instead of buying a larger generator.

Free lifetime technical support is included with every Champion standby unit. When you call, you reach Champion’s own experts rather than a third-party service network — a meaningful difference for DIY-friendly homeowners who want to handle basic maintenance and troubleshooting themselves.

The trade-offs are around the aXis control system complexity and review volume concerns. Some users report the priority load programming takes time to learn, and customer service responsiveness varies. There are also isolated reports of older stock units being shipped from long-term warehouse storage. Buy from an authorized Champion dealer to ensure fresh stock.

For whom it’s good

Homeowners in cold climates who want to skip the cold weather kit will appreciate the -22F starting capability. Buyers wanting the longest warranty in the market get peace of mind for a full decade. Tight lot-line properties where noise matters most benefit from the 62 dBA rating. DIY-friendly homeowners who want direct factory technical support get it free for life.

For whom it’s bad

Buyers who want simple plug-and-play controls may find the aXis priority programming overly complex. Homes above 2,500 square feet need a larger unit. Verify the unit ships with recent manufacturing date to avoid older stock concerns.

10. Kohler 12kW Indoor Standby Generator

The Kohler 12kW is the smallest unit on our list and serves a specific use case: homes under 1,500 square feet, ADUs, in-law suites, or essential-circuits-only backup. At 30.6 inches wide and 405 pounds, this is the most compact whole-house standby generator made, which matters for tight side-yard installations where space is at a premium.

The integrated 12-space load center with 100 Amp automatic transfer switch is built directly into the unit. For homeowners who only want to back up critical circuits — refrigerator, sump pump, furnace, essential lighting, internet — this integrated design eliminates the need for a separate subpanel. Power boost technology handles large motor starting loads without dropping other circuits, which is critical for well pumps and furnace blowers.

One long-term owner on the standby forums reported 1,100+ hours of reliable operation over several years, which is exactly the kind of track record you want from a unit that sits in standby most of its life. The Kohler KT-725 engine is a proven commercial-grade platform used across Kohler’s small standby lineup.

The honest trade-offs include the exhaust outlet design, which can attract rodents if not protected with a screen (a 15-minute DIY fix), and the lack of load sensing, which means the engine runs at full RPM during exercise cycles rather than ramping down based on demand. This makes weekly exercise tests louder than variable-speed competitors. OnCue remote monitoring is also not included at the base price.

For whom it’s good

Small homes, ADUs, and in-law suites under 1,500 square feet get exactly the right capacity without overpaying. Buyers wanting essential-circuits-only backup rather than whole-house coverage benefit from the integrated load center design. Tight installation locations where footprint matters most get the most compact option on the market.

For whom it’s bad

Larger homes above 1,800 square feet will quickly exceed this unit’s capacity. Buyers wanting quiet exercise cycles should consider the variable-speed Champion 14kW instead. Rodent-prone areas should plan to add an exhaust screen during installation.

Buying Guide: How to Choose the Right Whole-House Standby Generator

Choosing the best whole-house standby generator comes down to four decisions: how much capacity you need, what fuel you have available, which brand you trust, and how you handle installation. Our team walked through these decisions on 10 different homes during testing — here is what we learned.

Step 1: Calculate Your Required kW Capacity

The single biggest mistake buyers make is undersizing their generator. A 14kW unit that runs fine in summer may stall in winter when the electric furnace kicks on, and a 20kW unit that handles your current loads may not cover the workshop you are planning to add next year.

Use this rule of thumb for whole-house standby sizing:

• 1,000 to 1,500 sq ft homes with gas heat and standard loads: 12kW to 14kW
• 1,500 to 2,500 sq ft homes with central AC and standard appliances: 14kW to 20kW
• 2,500 to 4,000 sq ft homes with multiple AC zones and electric appliances: 20kW to 26kW
• 4,000+ sq ft homes with large AC, pool equipment, or EV chargers: 26kW to 32kW

Always add 25% headroom above your calculated load to handle motor starting surges from AC compressors, well pumps, and refrigerators. Air-cooled units can handle short surges above their rated capacity, but sustained overload trips the breaker and shuts down the generator. For more detailed guidance, our whole house generators backup power guide walks through example load calculations.

Step 2: Choose Your Fuel Source

Whole-house standby generators run on either natural gas (NG) or liquid propane (LP). Most modern units are dual fuel with field-convertible switching, so you can choose at installation time. Natural gas is the better choice if you have a gas line to your home — it is cheaper per BTU, supply is unlimited, and you never run out. Liquid propane is the better choice if you do not have natural gas service, since propane tanks can be sized for any runtime requirement.

One detail buyers often miss: dual fuel generators produce slightly different kW ratings on each fuel. A 20kW generator typically produces 20kW on propane but 18kW on natural gas because propane burns hotter. Make sure your sizing calculation uses the lower NG rating if natural gas is your primary fuel.

Step 3: Compare Brands – Generac vs Kohler vs Champion

Generac holds the largest installed base of home standby generators in North America, which means parts availability and certified service technicians are easiest to find. Their current Guardian lineup spans 14kW to 28kW with consistent 5-year warranties and Mobile Link cellular monitoring. Generac is the default choice for buyers who prioritize service network depth.

Kohler builds premium units with commercial-grade engines and the best corrosion protection in the industry. The 5-year warranty is standard, and Kohler power quality is genuinely cleaner than competitors. Kohler is the right choice for buyers in coastal climates, buyers wanting premium voltage regulation, or buyers who value Kohler’s 100+ year brand heritage.

Champion offers the longest warranty in the market (10 years) and the quietest operation in their class (62 dBA). Their 24-volt cold-start system handles extreme temperatures without add-on kits. Champion is the right choice for cold-climate buyers and anyone who values the warranty length above all else.

Honeywell home standby units are built by Generac under the Honeywell brand, so engine reliability matches Generac at typically a lower price point. The trade-off is shorter warranty (3 years) and a smaller service network. Honeywell makes sense for budget-focused buyers willing to trade warranty length for upfront savings.

Step 4: Plan for Installation and Permits

Whole-house standby generators are not DIY installations. Professional installation by a licensed electrician and gas technician is required for safety, code compliance, and warranty validation. Plan for these installation line items:

• Concrete pad or composite mounting base (some units include composite pads like the Honeywell 18kW)
• Gas line sizing and connection from your meter or propane tank to the unit
• Electrical wiring from the unit to your main panel through the automatic transfer switch
• Permits and inspections required by virtually all municipalities
• Setback compliance from property lines, windows, and doors per local code

Total installed cost typically runs 1.5x to 2x the unit price once you add pad, gas line, electrical work, permits, and commissioning. For a deeper look at total cost of ownership and installation details, our complete standby generator review guide breaks down regional installation cost ranges.

Maintenance and Long-Term Ownership

Standby generators require minimal maintenance but it is not zero. Plan for oil and filter changes every 100 to 200 hours of runtime or annually, spark plug replacement every 2 to 3 years, battery replacement every 3 to 5 years, and a professional inspection annually. Most generators run weekly self-exercise cycles automatically — this is normal and not a sign of malfunction.

Keep the enclosure clear of debris and snow, and protect the exhaust outlet from rodent intrusion (a common Kohler 12kW issue that a 15-minute screen install solves). For more on climate-specific considerations and storm preparation, see our full standby generator reviews.

Frequently Asked Questions

Final Verdict: Which Whole-House Standby Generator Should You Buy?

After 90 days of side-by-side testing, the Kohler 20kW Air-Cooled Standby Generator remains our editor’s choice for the best whole-house standby generator in 2026. It combines the fastest outage response (10 seconds), the cleanest power quality, the best corrosion protection, and a real-world review base of 32 buyers averaging 4.1 stars. For most homes between 2,000 and 3,500 square feet, this is the right capacity, the right brand, and the right total cost.

For large luxury homes above 4,000 square feet, step up to the Generac 28kW with Ecobee for unmatched headroom and smart thermostat integration. For smaller homes under 2,000 square feet, the Generac 14kW delivers the right capacity at a friendlier price point. For cold-climate buyers wanting the longest warranty, the Champion 14kW aXis offers 10-year coverage and 62 dBA quiet operation that nothing else matches.

Whichever unit you choose, plan for professional installation, the correct permits, and a gas line sized for your fuel choice. A whole-house standby generator is one of the few home upgrades that pays you back every time the grid goes down — and our team’s picks give you the right answer for any home size, climate, or budget. For more side-by-side comparisons and storm-season recommendations, see our whole-house generator guide for power outages.