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Generac Guardian Series Air-Cooled Home Standby Generator, 24kW (LP)/21kW (NG), Model# 7209

Item# 105877
"Generac Guardian Series Air-Cooled Home Standby Generator, 24kW (LP)/21kW (NG), Model# 7209"
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Generac Guardian Series Air-Cooled Home Standby Generator, 24kW (LP)/21kW (NG), Model# 7209

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Generac Guardian Series Air-Cooled Home Standby Generator, 24kW (LP)/21kW (NG), Model# 7209

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  • 5-Year limited warranty for automatic standby generators.
  • Save up to 8,000 dollars in product and installation costs when compared to competitive output products.
  • Takes up 70% less space when compared to competitive output products.
  • True power technology delivers best-in-class power quality with less than 5 percent total harmonic distortion for clean, smooth operation of sensitive electronics and appliances.
  • Generac generators and engines are engineered and built in the USA; Disclaimer: Assembled in the USA using domestic and foreign parts

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  • FREE 7-Year Warranty with Purchase—a $735 Value

    Purchase a qualifying Generac home standby generator and receive a FREE 7-Year Warranty. See details.

    Terms and conditions apply. Generator must be purchased between 4/6/26−6/12/26 and activated by 8/23/26.

  • Availability Varies

  • Description

  • Key Specs

  • Reviews

  • Q & A

  • Warranty

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Product Summary

As the #1 selling home standby generator brand, Generac's Guardian Series® generators provide the automatic backup power you need to protect your home and family during a power outage. Now coming with FREE Mobile Link™, allowing you to monitor the status of your generator on a phone, tablet or computer from anywhere in the world. Connected to your existing LP or natural gas fuel supply, it starts within seconds of sensing power loss - automatically - and runs for as long as necessary until utility power returns. Choose from just enough power to cover essential circuits or whole house coverage. Generac's Guardian Series offers benefits that few competitors can match. Engineered and built in the U.S.A., the new lineup of home standby generators are engineered to save you money on installation while offering the same reliability and peace of mind you get from all Generac home standby generators. Features that simplify the process for our installers include removable door panels, a base pad that requires minimal ground preparation and more efficient wiring techniques that save time on installation. Innovative engine design and rigorous testing are at the heart of Generac’s success in providing the most reliable generators possible. Generac’s G-force engine is purpose-build, capable of handling the rigors of generator use, resulting in power that more reliable and requires less maintenance than any competitive engine. All backed by 24/7/365 customer support and a nationwide dealer network of more than 5,000 strong, the best in the market.

What's Included

    (1) Home standby generator (1) Pre-attached composite mounting pad

Downloads

Product Manual

Features + Benefits

  • 5-Year limited warranty for automatic standby generators.
  • Save up to 8,000 dollars in product and installation costs when compared to competitive output products.
  • Takes up 70% less space when compared to competitive output products.
  • True power technology delivers best-in-class power quality with less than 5 percent total harmonic distortion for clean, smooth operation of sensitive electronics and appliances.
  • Generac generators and engines are engineered and built in the USA; Disclaimer: Assembled in the USA using 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
  • Includes Mobile Link™ remote monitoring for checking the status of your generator from anywhere in the world using your smartphone, tablet or PC for free
  • 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 five or twelve 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
  • Transfer Switch not included

Key Specs

AttributeSpecification

item#

105877

Brand

Generac

Manufacturer's Warranty

5 year limited warranty

Ship Weight

514.0 LB

Voltage

120/240

Rated Kilowatts LP

24

Surge Kilowatts LP

24

Rated Kilowatts NG

21

Surge Kilowatts NG

21

Max. Amps

100

Fuel Type

Multi-Fuel
AttributeSpecification

Engine Brand

Generac

Engine Model

G-force

Engine Displacement

999 cc

Enclosure Material

Aluminum

Start Type

Automatic

Battery Required

Yes

Battery Included

No

Auto Shutdown

Yes

Product Weight

514.0000 lb

Dimensions L x W x H (in.)

48.0 x 25.0 x 29.0 in

Reviews

Questions & Answers

3128 Reviews This action will navigate to reviews.

Questions

1–10 of 15 Questions  
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  1. How many btus of lp at full load

    1 answer

    1. The LP consumption at 50% is 92 (ft3/hr). The LP consumption at 100% is 142 (ft3/hr). The fuel should have a BTU content of at least 2500 BTU's per ft3. (93.15 mega joules per m3) for LP gas.

      Helpful?

  2. What size natural gas line is require for this unit. The plumber is requesting the BTU information for pricing their work.

    1 answer

    1. The gas pipe size will depend on length of line run from the source to the generator and how many elbows and T’s are used. The gas line size can range from ¾” to 1 ¼” or greater. The required fuel pressure to the generator fuel inlet with natural gas will be 3.5” to 7” water column.

      Helpful?

  3. Will this unit work with a 100A service? If not, what is largest rated kW unit using LP that will? Thanks!

    1 answer

    1. It is recommended to use a 200 amp transfer switch with the model 7209 (24/21KW). The largest model recommended with a 100 amp switch will be model number 7223. (14KW).

      Helpful?

  4. Requesting the entry points for the gas and transfer switch on the unit

    1 answer

    1. On the top left corner on the back of the generator there is a auxiliary shutdown switch, below the switch is the WIFI module, below the WIFI module is the main AC/control wiring for 1 1/4" conduit, below this is the main AC/control wiring hole for the 3/4" conduit, and the last is the fuel connection hole.

      Helpful?

  5. May I use a 400 amp transfer switch with this unit on NG?

    1 answer

    1. A 400 amp transfer switch can be used with this generator.

      Helpful?

  6. How many BTU's Natural Gas is needed for the 24kw unit?

    1 answer

    1. The generator needs 203,000 BTU at 1/2 load and 306,000 BTU at full load.

      Helpful?

  7. Does it run on natural gas

    1 answer

    1. This generator is rated for 24,000 watts for propane and 21,000 watts for natural gas.

      Helpful?

  8. whats the diffence in a model 7210 & 7209

    1 answer

    1. Model #7210 will include an automatic 200 Amp transfer switch. Model #7209 does not include a transfer switch.

      Helpful?

  9. How often is self test and how long is run time

    1 answer

    1. This generator runs a self-diagnostic test and runs briefly once a week for approximately ten minutes.

      Helpful?

  10. Does it come with the automatic switch and battery?

    1 answer

    1. This model does not include a transfer switch or battery.

      Helpful?

Warranty

Manufacturer's Warranty

5 year limited warranty