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Generac 7043 Guardian Series Generator Review

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For many homes, the Generac 7043 22 kW Guardian® Series automatic standby generator is one of the most powerful air-cooled generators now available.

All the features and functions that customers have come to expect from the industry-leading brand of home standby generators, but it also boasts the lowest cost per kilowatt of any air-cooled home backup generator available.

It's the item number: 54317.
Company is called Generac.
For five years, the manufacturer provides a warranty.
The generator has a weight of 515.0 lbs.
Surge Watts of 22/19.5 (kW).
It is 22/19.5 kW (Kilowatts).
Voltages of 120/240 volts.
Amplifiers rated at 91.6/81.25.
There are two types of fuel: liquid propane and natural gas.
OHVI engine by Generac.
The engine has a displacement of 999 cubic inches.
22.2 Rated Watts LP (Kilowatts).
LP (in kW) equals 22 SURGE watts.
One-hundred and ninety-five watts.
The NG (kW) = 19.5 Surge Watts.
Noise level of 67 decibels.
Enclosures made of aluminum.
Initiation Mode: Automatic.
Yes, you will need a battery.
There is indeed a 200A transfer switch.
No, it's not UL certified.
Aeration = Engine Cooling.
L x W x H = 48 x 25 x 29 in (inches).

Who is the target market for the Generac 7043?

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

Automatic protection for your house is provided by the Generac Guardian Series Air-Cooled House Standby Generator seven days a week. It's a central air conditioner that runs on either natural gas or liquid propane (LP).

Refueling, starting manually, or using extension cords are not required. Backup your complete home's electrical system or just the most crucial items with this power source. Internal main circuit breaker, system status LED, and fuel conversion without tools

In keeping with tradition, Wi-Fi is offered. Designed and developed in the United States, with customer support available 24 hours a day, seven days a week.

A principal source of energy for life-sustaining medical applications is not recommended. Before using this product, thoroughly read the owner's manual.

Notable features

Mobile LinkTM remote monitoring is included with all Guardian Series home standby generators. You may check on the status of your generator from anywhere in the world using a smartphone, tablet, or PC. Current operating conditions and maintenance warnings can be accessed at any time.

Take advantage of an authorized dealer's fast, friendly, and proactive services by connecting your account. With Mobile Link, you won't have to worry if there's a power outage.

Whole-house protection can be provided by the NEMA 3R (aluminum outside enclosure) smart switch.

There is a five-year limited warranty for automatic backup generators.

As a result of True PowerTM Technology's ultra-low total harmonic distortion (THD), sensitive electronics and appliances can run more reliably and smoothly.

The engines and generators developed by Generac are 100% American-made.

Constructed in the United States from parts sourced both domestically and internationally

Because it was specifically designed and pressure-lubricated to withstand the rigors of generator operation, Generac's G-Force Engine delivers more power with less maintenance than any other engine on the market. GForce Engine details are available right here.

Self-Test Mode uses a decreased RPM for a five- or twelve-minute test, making the generators significantly quieter and consuming less fuel than comparable manufacturers.

It is their goal to respond to any questions or concerns you may have 24 hours a day, seven days a week.

All-weather corrosion-resistant aluminum is made possible by our RhinoCoatTM powder coating.

It is possible to monitor maintenance intervals and check battery health using Generac's EvolutionTM Controller, which features a multilingual LCD display.

Final thoughts

To ensure the safety of your house and loved ones in the event of a power loss, Generac's Guardian Series power generators are a great option.

Powered by either LP or natural gas, it begins operating within seconds after a power outage and continues to operate until utility power is restored.

This generator is more than enough to get me through a power outage, and it has never let me down yet. 

Reflecting on whether the Generac 7043 Generator is right for you

Self-sufficiency has become increasingly popular among Americans in the wake of escalating power outages, pandemic shutdowns, and societal upheaval in recent years.

With a home standby generator, you'll be able to keep your family safe in the case of a power outage caused by a natural or man-made disaster.

General generator buying guide

In this guide, we explain all you need to know about backup generators, from why they're important to how and where you can get one. Then we will look at the Generac 7043 Guardian Series generator in more depth, as it is a favorite of mine. 

Standby vs Portable Generators

The difference between a standby generator and a portable generator is clear-cut. There are standby generators that are hardwired into your home and activate automatically in the case of a power outage.

Short-term power outages benefit from portable generators, while long-term power outages are best handled by Standby generators.

Numerous more benefits can be derived by utilizing a standby generator.

With standby generators, you don't have to worry about running out of gas or running out of electricity. Fire, carbon monoxide poisoning, and electrical shock are reduced as a result.

When you're away from home, a home backup generator can provide peace of mind. The air conditioner, water heater, refrigerator, and freezer, as well as the entire house, are restored immediately. As more people work remotely nowadays, a standby generator becomes very important.

Larger wattage ranges in home backup generators allow you to keep more of your house powered for longer periods of time than smaller ones. The most powerful backup generators are referred to as "whole-house generators" since they can theoretically power your complete house if they are large enough..

When the electricity goes out, your investment in a standby generator pays for itself, and it also increases the resale value of your home. The purest electricity for today's fragile gadgets is also provided by it.

Tips for Purchasing a Standby Power Generator like the Generac 7043

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

Choose a home backup generator by following these simple guidelines:

Decide on a source of energy

Determine the type of fuel in order to have a good backup for your home.

Up to 22kW of natural gas (NG) or liquid propane backup generators can be found on the market, but for diesel-powered models you'll need an entire-house liquid-cooled unit, which can be rather pricey.

LP and diesel fuel tanks must be large enough to power the generator. Gas metres and gas pipes must also be of the correct size.

This will be confirmed with you by your contractor prior to installation, however you can find it in the installation instructions on our product pages if you wish to do so yourself.

Calculate how much power you'll need

Determine how much power your home truly uses during a power outage, and if you want to back up only important systems like refrigerators and air conditioning, or the entire house.

Power needs

Larger generators, such as home standbys, are evaluated using the kilowatt (kW), a unit of electrical power production. One kilowatt (1,000W) is equivalent to 1,000 watts.

In order to get a sense of how much power your home uses during a power outage, you need first decide if you want to run your central air conditioner or other HVAC equipment during a power outage.

A scorching blackout might ruin your day, and an ice storm could cause your pipes to burst during the Christmas season. It's a good idea to have a backup system in place for your heating and air conditioning systems.

Choosing the Right Generator Size for Backup

How do you figure out what kind of generator you need? One method is to check the data plate of the air conditioner or whatever you are using for the size in BTUs or Tons. 12,000 BTUs and 3.517 kilowatts of energy are produced by each tonne of capacity.

An 11kW or more standby generator is required for a 3-ton (36,000 BTU) air conditioner.

How to Choose a Power Transfer Switch

Like a light bulb, you need a switch to turn on your generator in the same way.

Your generator will immediately start if there is a power outage thanks to an automatic transfer switch.

When a power outage is detected, it immediately starts the engine and disconnects the power line, allowing the generator to supply power to your home's panel.

There is no substitute for a proper generator when it comes to restoring power. To determine which one is ideal for you, you'll need to know how much power your electrical service panel can handle.

If this is the case, locate the primary breaker in your electrical panel (usually the big pull-out at the top). It's also possible to ask your installer to double-check.

In most homes, a 200-amp main breaker is installed, which means that the maximum amount of electricity your home may use is 200 amps. It's not uncommon for older homes to have a service of between 100 and 150 amps. Your home's panel must be compatible with the amp switch.

It is possible to monitor generators via the internet

Standby generators for home use already include Wi-Fi capabilities from a number of manufacturers. Even if your backup generator doesn't have Wi-Fi, you may still use a wireless monitor to keep an eye on things.

Using a remote app and integrating your generator with the rest of your smart home can help you diagnose and control your generator remotely. Even if you aren't at home, you can check on your generator and the current electricity situation.

Buying guide for Generac Generators

Most power outages last only a few minutes. Each year, the typical American loses power for four hours, says the US Energy Information Administration.

When the power goes out for an extended period of time, some people wonder how long Generac generators can run nonstop. 

What if the utility company takes days or weeks to restore power?

To help you make an informed purchase decision, we'll look at how long a Generac generator can run constantly.

Generac Generator Operating Hours

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

For as long as there is gasoline to power the generator, it should run like a car. In other words, the amount of fuel it can use decides how long it can run.

If you have a gas generator and receive natural gas through mains pipes to your home, you may be able to provide your Generac with fuel indefinitely. If there are no mechanical problems, your generator can run for weeks on end on the gas that it gets from the mains.

Generac generators that use liquid propane stored in a tank have shorter run times, but they are still considerable. 250-1,000 gallon capacity is standard for most conventional storage tanks.

There is an average of 2 to 3 liters of propane consumed by most households every hour in typical use. So, in the event of a power outage, a 1,000-gallon tank should last you around two weeks.

There are a variety of home generator diesel tanks to choose from. More than 1,000 gallons is possible in subterranean tanks, but fewer than 1,000 is possible in base tanks. Above-ground tanks are also an option, although they usually necessitate planning permission and don't have the same capacity as underground tanks.

This means a 1,000-gallon tank of diesel would last around 17 weeks if the 10kW generator is running at half capacity.

There are difficulties maintaining a Generac generator

A well-maintained home generator is a lot like a well-maintained car engine. As with any piece of equipment that has moving parts, wear and tear can be severe.

The easiest way to counteract generator degradation is to use a lubricant to reduce friction between all of the generator's working parts.

It is recommended that you change the oil in your generators after fifty hours of continuous use, according to Generac. After a few days of using it every day, this reduces to once every few days.

Portable and permanent generators

Portable and standby Generac generators are available. This determines how long they can provide power.

Portable units are easier to move. Concert and festival organizers commonly use them, but they can also be acquired by private individuals. When running, these generators can only generate electricity for a brief time before needing to be replenished.

However, standby generators are permanently attached to your property's fuel supply, either via the mains or through a separate fuel storage facility.

Connecting your generator to your home's main natural gas lines, for example, is the job of installers like those from Generac. Because of this characteristic, they are potentially able to supply power indefinitely.

Considerations for wattage

The amount of time your Generac generator can run continuously is also limited by the amount of wattage your house uses. Since we started this project, the average American home utilizes roughly 30 kW/h every day. However, you may need more if your peak usage is higher.

Typical whole-house generators produce 5,500 watts of power. Larger households may require more than 10,000 watts of power during their busiest periods, especially if a big number of people use the bathroom at the same time. As a result, models that can handle significantly more demand may be required.

Wattage needs for some of the most powerful home appliances are as follows:

Flat-screen televisions and laptop computers, on the other hand, use a lot less electricity. There is an average power usage of between 50 and 130 watts for these devices.

With limited fuel supply, the more power you use, the less time your Generac generator has to run for. The wattage of your generator is meaningless if you connect it to the mains. Excessive power use, on the other hand, is dangerous and may shorten the life of your device.

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!


Generator.Reviews is an independent review business. I am not affiliated with any manufacturers and do not accept paid reviews. When you buy through my links, I may earn a commission which helps me to maintain this website and keep the reviews coming your way!

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