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Best Standby Generator

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The best standby generator units are a particularly compelling power backup solution for homes, designed as they are to kick in automatically in the event of power outages & disruptions that an occur during weather events and other natural crises.

These smart and efficient units, manufactured by some of the leading names in power generation such as Briggs & Stratton, Generac and Kohler are ready 24-7 to automatically supply power to your home within seconds of a power loss being detected.

Best Standby Generator Buyers Guide

Home standby generators offer you and your family complete peace of mind, particularly if you live in an isolated area that may be prone to extreme weather conditioners.

They are expensive, but the reassurance that they give householders of guaranteed power regardless of weather conditions makes them an ideal long-term investment.

A step up from the best portable generator units, our team look across the power generator market and identified the following units as the best standby generator systems available.

1. Best Standby Generator Review - Generac 7043

Generac 7043 Home Standby Generator 22kW/19.5kW Air Cooled with Whole House 200 Amp Transfer Switch, Aluminum

The Generac 7043, at 22kW, is the largest air-cooled generator currently available. It also boasts all of the features and capacities that one would expect from a market-leading manufacturer of the best standby generator units.

This air-cooled unit, cheaper than many of the best liquid cooled generators, has Generac's innovative combined engine and alternator, using powertrain technology to attain the 22kw output.

Generac's standout 7043 model runs at 1,950rpm, and so consumes less fuel as well as being quieter than many of the other generators in this class.

2. Best Standby Generator Review - Kohler 20RESAL-100LC16

The Kohler 20RESAL-100LC16 will kick in automatically when there is a bad storm or a power outage of any kind, meaning that you will be connected regardless of whether you are in the house or not.

Installed outside the home, in a similar fashion to air-conditioning, the Kohler 20RESAL-100LC16 is wired into the electrics and fuel system of your home.

Its motor-starting power and efficiency is unsurpassed, and other attractive features of this unit include its swift, 10-second response time, while the quality of its construction, with corrosion-proof covers, protects the unit against the most severe elemental conditions.

A great generator from a brand that is trusted by hospitals, airports and weather services for their power and reliability.

3. Best Standby Generator Review - Briggs & Stratton 40450

Briggs & Stratton 40621 20kW w/ 200 Amp Symphony II Switch Standby Generator, Gray

Briggs & Stratton's model is a 10000-watt home standby generator system with a 200-amp automatic transfer switch that can not only power all of your appliances in the home, but is an effective managed whole-house power system that offers permanent protection and backup from power cuts.

This generator swiftly kicks in after sensing a power outage, automatically powering your home within seconds, and turning off again when it is not needed. The transfer switch enables you to treat the unit as a ‘plug and play’ appliance that will work when you want it to.

Powered by the trusted Briggs & Stratton engine power, this generator has a five-year limited parts and labour warranty.

4. Best Standby Generator Review - Generac 7037 Guardian Series

Generac Guardian 24kW Home Standby Generator with PWRview Transfer Switch Wi-Fi Enabled

Another entry for Generac, the 7037 Guardian Series standby generator is a widely available update of the extremely popular Generac 6462 Guardian Series, which can be difficult to come by in some places.

Almost regardless (there are of course differences in the models in this series), the Guardian Series is probably the best selling home generator marque for a reason, reliably providing the automatic backup power that you need, when you need it, and swiftly, during power outages in your home.

It will provide power and keep you and your family safe until normality is restored.

The generator is connected to your house's power or gas supply, and will automatically kick into gear and begin providing the necessary safe backup for all electric units and devices in your home, and run for as long as it takes the electricity mains power is restored.

5. Best Standby Generator Review - Briggs & Stratton 40445

The Briggs & Stratton 40445 is another of the best standby generators, an 8kW standby unit that wlll affordably cover your home's basic circuits, providing backup power to your lights, refrigerator, television and other small appliances.

Designed to fit any property, its flexible placement options and compact size make backup power a reality for many homeowners.

This has already been acclaimed as one of the most powerful units of its kW class. It's been tested against the NFPA 37 standard, and can be placed as close to your property as 18", which makes it a great option for the home, particularly if space is tight.

There is also a 50-amp transfer switch that will allow you to cover the basics by powering limited circuits.

This is a typical Briggs & Stratton product, quality operation, reliability, user-friendliness, and easy to transport to where you need it.

6. Best Standby Generator Review - Briggs & Stratton 40346

Briggs & Stratton 40621 20kW w/ 200 Amp Symphony II Switch Standby Generator, Gray

Yet another entry for Briggs & Stratton in this review of the best standby generator units, the 40346 model is a 20kw standby generator that comes with a 100-amp transfer switch, featuring the manufacturer's patented Symphony II Power Management system that can manage the load of up to two air conditioners while also powering household appliances.

The unit has an automotive-style exhaust system and sound dampening technology for quieter operation, making it an ideal power backup source in a residential area.

Briggs & Stratton estimate that its unique airflow technology enables its 20kw standby generators to run up to 50% quieter than most portable generator units.

Compliant with the robust National Fire Protection Agency 37 standard, this generator can be installed as close as 18" from your property, while the Briggs & Stratton limited warranty is reputed to be one of the most comprehensive available, offering five-year parts, labour and travel limited warranty.

7. Best Standby Generator Review - Generac 6438

Generac Guardian 24kW Home Standby Generator with PWRview Transfer Switch Wi-Fi Enabled

The Generac 6438 is an amazingly powerful and efficient backup power source, particularly if you live in areas prone to extreme weather events, such as hurricanes and tornadoes.

Generac's 6438 is an 11kW standby source that can automatically kick in within seconds of an outage to provide power for essential appliances such as air conditioners, water heaters, appliances in most of the rooms in your home.

This generator, a gas-powered air-cooled system in a steel enclosure, provides 11,000 Watts of power and has a 200-amp transfer switch that automatically disconnects your home from the mains when it detects a disruption in service, and then supplies its own power to your home.

Generac's 6438 model packs sufficient power to run a three-ton air conditioner along side the devices and equipment in the main rooms of your home.

This unit will also keep your family safe during unexpected power outages, surges and other incidents, and is well worth considering as a long-term investment for your home.

8. Best Standby Generator Review - Generac 7042

Generac 7042 Standby Generator

Generac round off our reviews of the best standby generator appliances with the 7042, another 22kW generator from the manufacturer's acclaimed Guardian Series.

The air-coooled 7042 has no transfer switch but remains one of the best air-cooled home standby 22kW/19.5kW generators on the market.

The 7042, as a generator-only proposition, is most suitable for someone who already has an automatic transfer switch installed on their property, although it would be recommended that you consult a Generac dealer on whether your existing automatic transfer switch can be used with Generac generators.

The good thing about such situations is that the installation process is much simpler than other brands, including removable door panels, a base pad requiring only minimal ground preparation, and efficient wiring techniques.

Another point in favour of Generac's units is that they are backed by 24/7/365 customer support, in addition to a 5,000plus-strong network of dealers across the nation.

About Tom Bell

Hey, I’m Tom, the owner of Generator Reviews! I built this website to help you get the very most out of your generator and select the correct one for your personal circumstances. This site contains reviews of virtually every generator, detailed buying guides, as well as maintenance advice to help you keep yours in tip-top shape!


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