Generac Guardian 24,000-Watt (LP)/21,000-Watt (NG) Air-Cooled Whole House Generator with Wi-Fi and 200-Amp Transfer Switch

Save up to 8,000 dollars in product and installation costs when compared to other output products, based on internal company data. Takes up 70% less space when compared to other output products, based on internal company data.

More Info. & Price

As the industry leader, Generac is proud to offer peace of mind to more than 2 million homeowners. Generac created the home standby generator market over 60-years ago and continues to provide innovative backup power solutions to homeowner’s across the world. Introducing the largest air-cooled generator on the market – Generac’s 24kW is a big deal in a small-package. Generac’s commitment to continuous improvement, innovation and technology is giving us the ability to bring more power to you. With Generac’s new 24kW you can save up to 8,000 dollars in product and installation costs, when compared to competitive output products, while powering what is most important for your home or small business. The new 24kW Guardian unit-packs the most power into a small-package, taking up to 70% less space when compared to competitive output products. Disclaimers: Based on internal company data.

  • Save up to 8,000 dollars in product and installation costs when compared to other output products, based on internal company data
  • Takes up 70% less space when compared to other output products, based on internal company data
  • 5-year limited warranty for automatic standby generators
  • True power technology delivers best-in-class power quality with less than 5% total harmonic distortion for clean, smooth operation of sensitive electronics and appliances
  • Generac generators and engines are engineered and built-in (assembled domestic and foreign parts)
  • Generac’s G-Force engine is a purpose-built, pressure-lubricated engine capable of handling the rigors of generator use, resulting in power that’s more reliable and requires less routine maintenance than any competitive engine
  • 24/7/365 customer support team standing by all-day, every-day from our headquarters in Wisconsin to answer any questions you might have
  • Quiet-test self-test mode runs at a lower RPM for a 5-minute or 12-minute test, making generators significantly quieter than other brands while consuming less fuel
  • Tough, durable all-aluminum enclosures: our RhinoCoat powder-coated finish helps make corrosion-resistant aluminum perfect for all weather conditions
  • Smart, user-friendly controls- Generac’s evolution controller features a multi-lingual LCD display that allows users to monitor battery status and track maintenance intervals to ensure your generator is always in top operating condition

Additional information

Product Height x Length x Width (in.)

29 x 48 x 25

Certifications and Listings

UL Listed,cETLus,cUL Listed

Manufacturer Warranty

5 Year limited warranty

Year 200 (CC) was a leap year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Severus and Victorinus (or, less frequently, year 953 Ab urbe condita). The denomination 200 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

Twenty-one, XXI or 21 may refer to:

  • 21 (number), the natural number following 20 and preceding 22
  • The years 21 BC, AD 21, 1921, 2021

24 may refer to:

  • 24 (number), the natural number following 23 and preceding 25
  • one of the years 24 BC, AD 24, 1924, 2024

Amp may refer to:

  • Ampere, a unit of electric current, often shortened to amp
  • Amplifier, a device that increases the amplitude of a signal

Generac Holdings Inc., commonly referred to as Generac (derived from a combination of generating and AC), is a Fortune 1000 American manufacturer of backup power generation products for residential, light commercial and industrial markets. Generac's power systems range in output from 800 watts to 9 megawatts, and are available through independent dealers, retailers and wholesalers. Generac is headquartered in Waukesha, Wisconsin, and has manufacturing facilities in Berlin, Oshkosh, Jefferson, Eagle, and Whitewater; all in Wisconsin.

Generator may refer to:

  • Signal generator, electronic devices that generate repeating or non-repeating electronic signals
  • Electric generator, a device that converts mechanical energy to electrical energy.
  • Tidal stream generator, a machine that extracts energy from moving masses of water
  • Generator (circuit theory), an element in an abstract circuit providing a source of electricity
  • Engine-generator, an electric generator with its own engine
  • Wearable generator, a hypothetical generator that can be worn on the human body
  • Gas generator a device, often similar to a solid rocket or a liquid rocket that burns to produce large volumes of relatively cool gas
  • Motor–generator, a device for converting electrical power to another form
  • Atmospheric water generator, a device capable of extracting water from air

Guardian usually refers to:

  • Legal guardian, a person with the authority and duty to care for the interests of another
  • The Guardian, a British daily newspaper

(The) Guardian(s) may also refer to:

A house is a single-unit residential building. It may range in complexity from a rudimentary hut to a complex structure of wood, masonry, concrete or other material, outfitted with plumbing, electrical, and heating, ventilation, and air conditioning systems. Houses use a range of different roofing systems to keep precipitation such as rain from getting into the dwelling space. Houses generally have doors or locks to secure the dwelling space and protect its inhabitants and contents from burglars or other trespassers. Most conventional modern houses in Western cultures will contain one or more bedrooms and bathrooms, a kitchen or cooking area, and a living room. A house may have a separate dining room, or the eating area may be integrated into the kitchen or another room. Some large houses in North America have a recreation room. In traditional agriculture-oriented societies, domestic animals such as chickens or larger livestock (like cattle) may share part of the house with humans.

The social unit that lives in a house is known as a household. Most commonly, a household is a family unit of some kind, although households may also have other social groups, such as roommates or, in a rooming house, unconnected individuals, that typically use a house as their home. Some houses only have a dwelling space for one family or similar-sized group; larger houses called townhouses or row houses may contain numerous family dwellings in the same structure. A house may be accompanied by outbuildings, such as a garage for vehicles or a shed for gardening equipment and tools. A house may have a backyard, a front yard or both, which serve as additional areas where inhabitants can relax, eat, or exercise.

In electrical engineering, a switch is an electrical component that can disconnect or connect the conducting path in an electrical circuit, interrupting the electric current or diverting it from one conductor to another. The most common type of switch is an electromechanical device consisting of one or more sets of movable electrical contacts connected to external circuits. When a pair of contacts is touching current can pass between them, while when the contacts are separated no current can flow.

Switches are made in many different configurations; they may have multiple sets of contacts controlled by the same knob or actuator, and the contacts may operate simultaneously, sequentially, or alternately. A switch may be operated manually, for example, a light switch or a keyboard button, or may function as a sensing element to sense the position of a machine part, liquid level, pressure, or temperature, such as a thermostat. Many specialized forms exist, such as the toggle switch, rotary switch, mercury switch, push-button switch, reversing switch, relay, and circuit breaker. A common use is control of lighting, where multiple switches may be wired into one circuit to allow convenient control of light fixtures. Switches in high-powered circuits must have special construction to prevent destructive arcing when they are opened.

The watt (symbol: W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantify the rate of energy transfer. The watt is named in honor of James Watt (1736–1819), an 18th-century Scottish inventor, mechanical engineer, and chemist who improved the Newcomen engine with his own steam engine in 1776. Watt's invention was fundamental for the Industrial Revolution.

Average Rating

4.86

07
( 7 Reviews )
5 Star
85.71%
4 Star
14.29%
3 Star
0%
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7 Reviews For This Product

  1. 07

    by Mike

    Generac generator is great. The confused part was trying to get the people at HD to find it after they notified me that it was in.

  2. 07

    by Rob

    It’s installed and runs the tests fine. Only had a month and haven’t needed it yet. It was missing facia trim pieces and the company is a real pain to get them on the phone. It’s taking lots of calls to get them to send replacements. So customer service hasn’t been very good so far. But I did find a local Generac service company that is good to deal with. Home Depot got the generator in earlier than projected. HD was the only place I could find the generator. The big box blue store took my order and 1 wk from estimated delivery it cancelled with out of stock. But HD was great to work with.

  3. 07

    by Jim

    Awaiting installation; however Hime Depot shipped generator as fast as they promised to the store for pickup.

  4. 07

    by Steve

    I’m inquiring about getting a 24K installed and the installation quote and cost of Generac 24K generator came in at $11.6k. Isn’t that a little steep considering the generator cost $6200+?

  5. 07

    by Moul

    I have had two of these over rhe last decade. It usually takes under 10 seconds for them to come on when the power goes down. When everyone else is dark and hot or cold it sure is nice to have heat/AC and all the other comforts that you are used to. It seems wxpensive off the start until you ever need it than its well worth it. Only thing you will have to figure out is where your outdoor plugs are as your neighbors will be connecting to them. 1st generator was on a 4200sqft home, pool, two AC’s and everything else – no issues. 2nd is on a 3700 sqft house, 2 AC’s and no. issues. You can get a maintenance plan but its pretty easy and the supplies for it cost under $100/year. Replace the battery every year or 2nd year and your good.

  6. 07

    by Mike

    Don’t pay the high prices, get your Generator from Home Depot and get a qualified electrical company to install it. Got ours installed within 2 weeks. One of the best investments we have made!!! 24k is the way to go!

  7. 07

    by Steve

    Came on time and it’s a Generac. In my opinion the best home generators on the market.

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