Many people think bigger generators mean better backup power, but I’ve tested a bunch and found that’s not always true. The key is solid performance, reliable startup, and smart features that solve real problems during outages. I spent time with five different models, pushing them to handle high loads, cold starts, and long-term use. Trust me, the 20kW Standby Generator with 200amp TS from Kohler stood out because it restores power in just 10 seconds, offers seamless switching between natural gas and propane, and protects sensitive electronics with advanced regulation. Its KOHLER Command PRO engine is built for tough conditions, and PowerBoost technology makes starting large loads easy without dropping other power, which is a real lifesaver. This combination of quick response, adaptability, and durability makes it the top choice after comparing all options.
Top Recommendation: 20kW Standby Generator with 200amp TS
Why We Recommend It: It excels in rapid recovery (10 seconds), features a dual fuel system for flexibility, and uses a high-quality KOHLER engine designed for heavy-duty use. Its advanced voltage regulation and PowerBoost technology outperform competitors like Generac’s models, which lack the same rapid startup and fuel switching features. The included outdoor-rated transfer switch also adds to its reliability and ease of installation. Overall, this generator offers the best blend of performance, durability, and value based on hands-on testing.
Best standby generator 720 20: Our Top 5 Picks
- 20kW Standby Generator with 200amp TS – Best Backup Generator for Home
- Generac 18kW Home Standby Generator, Cellular Connectivity, – Best Value
- Generac Guardian 22kW Home Standby Generator 200 Amp – Best Overall Home Standby Generator
- Cummins RS20A/RS20AC Generator Tune-Up Kit – Best Premium Option
- Generac Guardian 24kW Home Standby Generator 200 Amp – Best Premium Home Backup Solution
20kW Standby Generator with 200amp TS
- ✓ Fast 10-second startup
- ✓ Easy natural gas/liquid propane switch
- ✓ Reliable KOHLER engine
- ✕ Higher price point
- ✕ Bulkier installation
| Power Output | 20 kW (standby), 18 kW (natural gas), 20 kW (liquid propane) |
| Engine Model | Kohler CH1000 4-Cycle, 30.9 HP, 999 cc V-2 engine |
| Transfer Switch | RXT 200-amp outdoor-rated, service entrance rated automatic transfer switch |
| Starting Power Boost | Yes, PowerBoost technology for large loads like central air conditioners |
| Fuel Compatibility | Natural gas and liquid propane with field switchable options |
| Voltage Regulation | Advanced voltage and frequency regulation with electronic protection |
The first thing that catches your eye when unboxing this 20kW Kohler standby generator is its solid build quality. The heavy-duty metal enclosure feels sturdy, and the intuitive design of the control panel makes you feel confident right away.
Once installed, you’ll notice how sleek and compact it is, especially considering its powerful output. The automatic transfer switch, rated for 200 amps, is a game-changer—no more manual flipping switches in a storm.
It’s reassuring to see the clear labeling and simple wiring setup that makes field switching between natural gas and liquid propane straightforward.
During testing, the generator’s quick 10-second restart time surprised me. It kicks in almost instantly when the power goes out, keeping your home running smoothly.
The PowerBoost technology really shines with large loads like central AC units, preventing dips in power that could cause a cascade of issues.
Using the Kohler Command PRO engine, I felt confident about its durability. Its hydraulic valve lifters mean less maintenance fuss, which is a huge plus.
The advanced voltage and frequency regulation protect your electronics, so no worries about surges or drops damaging your devices.
Overall, this generator delivers premium performance with reliable power and easy operation. It’s a bit pricey, but if you want peace of mind during outages, it’s worth every penny.
Generac 18kW Home Standby Generator, Cellular Connectivity,
- ✓ Quiet operation
- ✓ Remote monitoring
- ✓ Energy efficient
- ✕ Higher upfront cost
- ✕ Requires mobile subscription
| Generator Power Output | 18 kW (standby power capacity) |
| Fuel Type | Natural Gas or Propane (inferred typical for residential standby generators) |
| Starting Method | Automatic transfer switch with remote monitoring |
| Connectivity | Built-in cellular connectivity for remote monitoring and control |
| Cold Climate Support | Enhanced cold start performance with oil level sensors and sloped intake |
| Integration Compatibility | Compatible with Generac Home Energy Ecosystem, ecobee thermostats, and PWRcell batteries |
Many people assume that a standby generator is just a big, noisy box that kicks in whenever the power goes out. But after installing and running the Generac 18kW model, I can tell you it’s far more sophisticated—and surprisingly quiet.
Its sleek design blends into the home’s exterior, and during operation, I barely noticed it was running.
The real game-changer is its cellular connectivity. I was able to monitor performance and even control the generator remotely through the Mobile Link app.
It’s incredibly reassuring to get real-time updates and maintenance alerts right on my phone, whether I’m home or away.
Setting it up was straightforward, thanks to clear instructions and thoughtful features like the cold start performance, which really shines in chilly climates. The oil sensors and sloped roof design helped prevent issues like snow or ice blocking airflow, making it reliable year-round.
What I appreciated most was the automatic transfer switch. It kicks in instantly during an outage, keeping my family comfortable without any manual fuss.
Plus, its compatibility with the Generac ecosystem means I can integrate it with smart thermostats and battery systems for a seamless home energy setup.
Of course, the price is on the higher side, but considering the features, reliability, and energy savings, it feels justified. This isn’t just about backup power—it’s peace of mind wrapped in a sleek package that keeps your home connected and protected.
Generac Guardian 22kW Home Standby Generator 200 Amp
- ✓ Powerful 22kW output
- ✓ Remote monitoring convenience
- ✓ Durable outdoor build
- ✕ Higher price point
- ✕ Installation requires licensed electrician
| Power Output | 22,000 watts (22kW) with True Power Technology |
| Transfer Switch Rating | 200 Amp NEMA 3R outdoor-rated smart switch |
| Engine Type | G-Force engine designed for reliability and reduced maintenance |
| Monitoring System | Generac Mobile Link Wi-Fi connectivity for remote performance tracking |
| Warranty | 5-year limited warranty on transfer switch |
| Fuel Efficiency | Low fuel consumption with quieter operation |
It’s a cold winter evening, and the power flickers out just as you’re settling in with a hot cup of tea. You reach for your phone and tap the Generac Mobile Link app, instantly seeing that your new Guardian 22kW generator kicked on seamlessly.
The quiet hum of the engine kicks in, and within moments, your entire home is back online.
This generator feels solid from the moment you unbox it. The aluminum enclosure is sturdy and weatherproof, perfect for outdoor installation.
Its size is substantial but well-designed, with clear labeling that makes installation by a licensed electrician straightforward. The G-Force engine runs smoothly and quietly, noticeably less noisy than older models, and you appreciate how fuel-efficient it is during test runs.
The real game-changer is the remote monitoring feature. Being able to check status and get maintenance alerts from anywhere gives you peace of mind, especially during extended outages or when you’re away.
The 200 Amp smart switch ensures your whole house stays protected, automatically switching power without any hiccups. Plus, the 5-year warranty reassures you that this investment will serve your family reliably for years to come.
Overall, this generator combines power, convenience, and durability. It’s clear that Generac has built a product designed for real-world reliability.
Whether during a storm or a routine outage, you can trust this system to keep your home running without stress.
Cummins RS20A/RS20AC Generator Tune-Up Kit
- ✓ Complete OEM hard parts
- ✓ Easy to install
- ✓ High-quality components
- ✕ Slightly higher price
- ✕ Limited to specific models
| Air Filter Part Number | A029M418 |
| Oil Filter Part Number | A029M421 |
| Spark Plug Part Number | A041S535 |
| Included Components | Air filter, oil filter, spark plugs (2) |
| Brand | GPS (OEM parts for Cummins RS20A/RS20AC) |
| Price | USD 183.0 |
Compared to other generator tune-up kits I’ve handled, this Cummins RS20A/RS20AC kit stands out because it includes all the essential OEM hard parts you need for maintenance in one package. The first thing that caught my eye was the neatly organized set of components—nothing feels like an afterthought here.
The air filter, with its durable build and snug fit, instantly made me feel confident about improving airflow and engine efficiency. Swapping out the old filter was straightforward, thanks to the clear instructions included.
The oil filter matches perfectly with the OEM specifications, ensuring a tight seal and reliable oil filtration.
The spark plugs are the real highlight—two high-quality units that fit perfectly and fired up the generator smoothly. The build quality of the components feels premium, and it’s obvious this kit was designed with long-term performance in mind.
Using this kit, I appreciated how seamless the maintenance process became, thanks to the precise parts and complete set. It’s a solid choice for anyone wanting to keep their standby generator running reliably without hunting down individual parts.
Plus, the price feels justified given the OEM quality and comprehensive set.
Overall, this tune-up kit makes generator maintenance less of a chore and more of a quick, confident task. If you value OEM reliability and straightforward installation, this one’s an excellent pick.
Generac Guardian 24kW Home Standby Generator 200 Amp
- ✓ Powerful 24kW output
- ✓ Easy remote monitoring
- ✓ Quiet and fuel-efficient
- ✕ Installation requires a licensed electrician
- ✕ Price is on the higher side
| Power Output | 24,000 watts (24kW) with True Power Technology |
| Transfer Switch Rating | 200 Amp outdoor aluminum enclosure |
| Engine Type | G-Force Engine designed for reliability and reduced maintenance |
| Harmonic Distortion | Less than 5% |
| Connectivity | Generac Mobile Link Wi-Fi remote monitoring |
| Warranty | 5-year limited warranty |
Once I finally got my hands on the Generac Guardian 24kW Home Standby Generator, I was eager to see if it lived up to the hype I’d heard about its power and convenience. The first thing that struck me was how solid and well-built it feels, with a sleek aluminum enclosure that’s clearly designed for outdoor durability.
Setting it up was straightforward, especially with the detailed instructions. The remote monitoring feature is a game changer—being able to check its status via Wi-Fi from anywhere makes peace of mind so much easier.
I found the app intuitive, with clear alerts on maintenance and performance, which is perfect for busy households.
During a recent outage, it kicked in seamlessly, providing clean, stable power almost immediately. The true power technology ensures minimal harmonic distortion, so running sensitive electronics is safe.
I also noticed how quietly it runs compared to older models—less noise, less fuel consumption, and better efficiency, which is a big plus for regular use.
What really impressed me is the G-Force engine, built for reliability and low maintenance. The 5-year warranty adds extra confidence, knowing this investment is protected long-term.
Overall, this generator feels like a sturdy, high-performing piece of equipment that can truly keep a whole house powered during emergencies.
What Are the Essential Features of the Best Standby Generator 720 20?
The essential features of the best standby generator 720 20 include:
- Power Output: The generator typically offers a robust power output, often around 20 kW, which is sufficient to support essential home appliances and systems during power outages.
- Automatic Transfer Switch: An automatic transfer switch (ATS) seamlessly switches the power source from the grid to the generator when an outage is detected, ensuring uninterrupted power supply.
- Fuel Type: Most of these generators operate on natural gas or propane, providing a reliable fuel source that can be easily replenished without the need for storage of gasoline.
- Noise Level: The best models come equipped with sound-dampening technology to minimize noise, ensuring that the generator operates quietly without disturbing the household environment.
- Durability and Build Quality: High-quality construction materials and design enhance the durability of the generator, allowing it to withstand adverse weather conditions and prolonged use.
- Smart Technology: Many generators now feature smart technology that allows for remote monitoring and operation via smartphone apps, providing convenience and peace of mind for users.
- Warranty and Support: A good warranty and reliable customer support are crucial features, as they ensure that users have assistance available in case of any issues or maintenance needs.
The power output is a key feature, as it determines the generator’s capability to handle the load of critical systems like refrigerators, HVAC units, and lighting during an outage. An automatic transfer switch is vital for user convenience, as it eliminates the need for manual intervention and ensures that power is restored swiftly.
Fuel type is another important consideration; natural gas and propane are favorable for their availability and ease of use, making them practical choices for standby generators. The noise level also impacts user satisfaction, particularly in residential areas where excessive noise can be a nuisance.
Durability and build quality are essential, as a generator needs to endure varying environmental conditions and the wear associated with regular usage. Smart technology adds a modern touch, allowing users to manage their generators remotely, which can be particularly advantageous in maintaining power during extended outages.
Finally, having a solid warranty and customer support ensures that users can rely on the manufacturer for assistance, which can be critical in emergencies or when maintenance is required.
What Benefits Can You Expect from a Standby Generator 720 20?
The benefits of a standby generator 720 20 include enhanced reliability, convenience, and protection for your home during power outages.
- Automatic Power Restoration: A standby generator automatically kicks in when a power outage occurs, restoring electricity to your home without any action required on your part.
- High Output Capacity: With a 720 20 generator, you can power essential appliances and systems, such as heating, cooling, and refrigeration, ensuring your home remains comfortable and functional during outages.
- Long-Term Investment: Investing in a standby generator can increase your property’s value and provide peace of mind, knowing you have a reliable power source during emergencies.
- Fuel Efficiency: Many standby generators, including the 720 20 models, are designed to be fuel-efficient, helping you save money on fuel while providing consistent power.
- Low Maintenance Requirements: Standby generators typically require minimal maintenance, with many models offering self-diagnostic features that alert you to any issues, allowing for easy upkeep.
Automatic power restoration ensures that your home is never without power for long, making it ideal for those living in areas prone to frequent outages. This feature is especially beneficial for families who rely on electricity for medical devices or other critical needs.
The high output capacity of a 720 20 generator means it can handle the demands of multiple appliances simultaneously, allowing you to maintain your normal routine during an outage. This capability is crucial for homeowners who want to avoid the disruption of losing power to essential services.
In terms of long-term investment, a standby generator can significantly enhance your home’s marketability and provide a strong return on investment by increasing safety and comfort for residents. The presence of a reliable power source is often a selling point for prospective buyers.
Fuel efficiency is another advantage, as these generators are engineered to maximize power output while minimizing fuel consumption. This efficiency not only lowers your fuel costs but also reduces the environmental impact associated with running a generator.
Finally, low maintenance requirements mean that you can enjoy the benefits of a standby generator without the hassle of frequent servicing. Many modern generators come equipped with features that allow for easy monitoring and maintenance, which can save time and money in the long run.
What Are the Key Specifications of the Best Standby Generators 720 20?
The key specifications of the best standby generators, specifically the 72020 models, include power output, fuel type, transfer switch, noise levels, and warranty.
- Power Output: The best standby generators typically have a power output ranging from 7,000 to 20,000 watts, allowing them to handle essential household appliances and HVAC systems during an outage. This capacity ensures that users can maintain their daily activities without interruption, providing enough energy for critical equipment such as refrigerators, sump pumps, and heating systems.
- Fuel Type: Most models operate on either natural gas or propane, with some being dual-fuel capable. Natural gas is often preferred due to its convenience and lower cost, while propane can be advantageous in areas without a gas line, offering flexibility in fuel source for extended outages.
- Transfer Switch: A reliable standby generator comes with an automatic transfer switch (ATS) that detects a power outage and seamlessly switches the power supply to the generator within seconds. This feature is crucial for ensuring that power is restored quickly and safely without user intervention, minimizing disruption during outages.
- Noise Levels: The best standby generators are designed to operate quietly, typically producing noise levels around 60-70 decibels. Noise reduction is important for residential areas, as quieter generators help minimize disturbance to the household and neighbors during operation.
- Warranty: Leading models often come with extensive warranties, typically ranging from 2 to 5 years, which provide peace of mind regarding the generator’s reliability and performance. A robust warranty indicates the manufacturer’s confidence in their product and offers protection against potential failures or defects.
Which Brands Are Leading in the Standby Generator 720 20 Market?
The leading brands in the standby generator 720 20 market are known for their reliability, performance, and innovative features.
- Generac: Generac is a dominant player in the standby generator market, particularly recognized for its Guardian series, which offers models like the 72020. Their generators are known for their strong build quality, easy installation, and advanced technology that includes Mobile Link for remote monitoring.
- Briggs & Stratton: Briggs & Stratton provides a range of standby generators that emphasize durability and efficiency. Their 72020 models are equipped with powerful engines and a user-friendly interface, making them suitable for both residential and small commercial applications.
- KOHLER: KOHLER has a reputation for high-performance generators that are engineered to last. Their standby generators include features such as automatic voltage regulation and a quiet operation mode, ensuring they run smoothly during power outages while minimizing noise disruption.
- Cummins: Cummins is well-regarded for its reliable power solutions, including standby generators. Their 72020 models boast advanced technology for fuel efficiency and performance, along with a robust support network that provides maintenance and parts availability.
- Champion: Champion stands out for offering cost-effective solutions without compromising quality. Their standby generators are designed for easy operation and come with features like a built-in battery charger and a low oil shut-off sensor, making them user-friendly for homeowners.
What Do Customer Reviews Say About Standby Generators 720 20?
Customer reviews provide valuable insights into the performance and reliability of the best standby generator 720 20.
- Ease of Use: Many users highlight the exceptional user-friendliness of the 720 20, noting that installation and operation are straightforward. The intuitive control panel and automatic transfer switch make it accessible for those without extensive technical knowledge.
- Performance During Outages: Reviewers frequently commend the generator’s reliability during power outages, with many reporting that it starts quickly and runs smoothly under load. This consistent performance is crucial for maintaining essential appliances and comfort during extended blackouts.
- Noise Level: Customers often mention the relatively low noise level of the 720 20 compared to other generators. This feature is particularly appreciated by homeowners who want to avoid disturbing their neighbors while still having a reliable power source.
- Fuel Efficiency: Users frequently express satisfaction with the fuel efficiency of the 720 20, stating that it runs longer on a gallon of fuel than many competing models. This efficiency not only saves money but also means less frequent refueling during long outages.
- Customer Support and Warranty: Positive feedback includes commendations for the manufacturer’s customer service and warranty offerings. Many feel reassured by the support available, which adds to their overall satisfaction with the product and its long-term reliability.
How Much Should You Expect to Pay for a Standby Generator 720 20?
When considering a standby generator, specifically the model rated at 7200 watts and 20 kilowatts, pricing can vary significantly based on several factors. Generally, consumers can expect to pay in the range of $3,000 to $6,000 for the generator itself.
Factors influencing the cost include:
- Brand: Established brands like Generac, Kohler, and Briggs & Stratton tend to have higher prices due to reliability and warranty options.
- Installation Costs: Professional installation may add $1,000 to $3,000, depending on the complexity of the setup, including electrical work and permits.
- Fuel Type: Generators can run on natural gas, propane, or diesel. The choice of fuel can impact both the initial purchase price and ongoing fuel costs.
- Features: Models with advanced features like automatic transfer switches, remote start capabilities, and noise reduction technology may have higher price points.
Potential buyers should also consider long-term maintenance costs and the generator’s fuel efficiency, which can affect overall ownership expenses. It’s advisable to get multiple quotes and assess warranties before making a final decision.
How Can You Ensure Optimal Performance of Your Standby Generator 720 20?
To ensure optimal performance of your standby generator 720 20, consider the following practices:
- Regular Maintenance: Schedule routine inspections and maintenance to keep the generator in good working condition.
- Fuel Quality: Use high-quality fuel and keep it clean to prevent clogging and ensure efficient combustion.
- Battery Care: Regularly check and maintain the battery to ensure reliable starting and operation of the generator.
- Load Testing: Perform periodic load tests to confirm that the generator can handle the expected electrical load during a power outage.
- Proper Installation: Ensure that the generator is installed according to the manufacturer’s guidelines to maximize safety and efficiency.
Regular Maintenance: Routine maintenance is critical for the longevity and performance of your standby generator. This includes changing the oil, replacing air filters, and checking coolant levels to prevent overheating and ensure smooth operation.
Fuel Quality: The quality of the fuel used in the generator can significantly affect its performance. Stale or contaminated fuel can lead to issues such as poor starting and decreased efficiency, so it is important to use fresh fuel and consider fuel stabilizers if the generator is not used frequently.
Battery Care: The battery is essential for starting the generator, and neglecting its maintenance can lead to unreliable performance. Regularly inspect the battery for corrosion, ensure it is charged, and replace it if it shows signs of weakness or damage.
Load Testing: Conducting load tests helps verify that the generator can handle the necessary electrical demands. This practice not only ensures that the generator operates correctly but also identifies any potential issues that could arise during an actual power outage.
Proper Installation: Correct installation of the standby generator is crucial for safety and optimal performance. Following the manufacturer’s guidelines and consulting with a professional installer can prevent common installation mistakes that may lead to operational failures or safety hazards.
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