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Generac Guardian 8 Kw Liquid-Cooled Single Phase 120/240 V Natural Gas Propane Standby Generator with Transfer Switch in Steel Enclosure


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List Price: $2,399.00

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Arrives for Christmas to Woodbridge, NJ 02108 (Change)


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The Guardian 8 kW standby generator provides the cleanest and most affordable pre-wired, pre-packaged power protection on the market. It comes standard with an 8 circuit automatic transfer switch that protects critical circuits in your home. And like all Guardian generators, it is UL listed for safety. Guardian home standby generators automatically supply electricity to pre-selected circuits during a utility power outage. Their pre-packaged, pre-wired systems make installation fast, easy and so affordable, you'll wonder why you didn't buy one sooner.


  • Convenient, hands-free operation no fueling, no manual start, no extension cords
  • Runs on natural gas or liquid propane
  • Clean, smooth power True Power technology provides safe operation of sensitive electronics
  • Powerful Output
  • Increased output for more protection
  • Ultra quiet - features 1/3 the sound level of a portable generator
  • Automatic weekly exercise ensures protective response
  • Easy Installation
  • Generac OHVI Industrial Engine
  • The only air-cooled engine designed specifically for generators
  • Long-run, long-life design: Over 3,000 hours of run time
  • High-torque design - responds instantly to large electrical loads
  • Low-maintenance - 2 year, 200 hour service intervals
  • UL Listed for safety and certified power ratings
  • California Air Standard Compliant
  • Includes automatic transfer switch with 10 circuits protected (NEMA 1, indoor rated only)
  • Protective enclosure with galvanized steel and tough paint finish for unmatched durability
  • Standard 2 year warranty
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  • Overall Height - Top to Bottom: 29 Inches
  • Overall Width - Side to Side: 48 Inches
  • Overall Depth - Front to Back: 25 Inches
  • Overall Product Weight: 336 Pounds

Special Offer:

Family Fun

Included with your purchase, a 10.00 value  (Subscription and rebate info)

Weights & Dimensions

  • Overall Height - Top to Bottom: 29 Inches
  • Overall Width - Side to Side: 48 Inches
  • Overall Depth - Front to Back: 25 Inches
  • Required Distance from Building: 1.5 Feet
  • Overall Product Weight: 336 Pounds


Transfer Switch Amperage: 50 AmpsFinish: Bisque
Operating Type: AutomaticNumber of Circuits: 10
CARB Compliant: YesEnclosure Material: Steel
Weather Resistant: YesEngine Brand: Generac
Engine RPM: 3600Phase: Single phase
Rated Voltage: 120/240Voltage Regulator: Yes
Maximum Amperage: 35 AmpsMaximum Wattage: 8000 Watts (W)
Transfer Switch Included: YesDual Fuel Use: Yes
Fuel Type: Liquid propane; Natural gasCooling System: Liquid-cooled
Load Management System: NoMounting Pad Included: Yes
Residential or Commercial Use: ResidentialCountry of Manufacture: United States

“Hello, can this generator be placed in the open, or does it require shelter from the weather?” asked by Ronni

"Hi Ronni, this can be placed outside." Wayne from Wayfair


“Hi, what is the NG pressure requirement for this generator?” asked by Harlan

"Hi Harlan, the NG pressure requirement for this generator is 140,000 BTU per hour." Kristofer from Wayfair

Still have questions about this product? We're here to help

When you buy a Generac Guardian 8 Kw Liquid-Cooled Single Phase 120/240 V Natural Gas Propane Standby Generator with Transfer Switch in Steel Enclosure online from Wayfair, we make it as easy as possible for you to find out when your product will be delivered. You can check on a delivery estimate for the Generac Part #: 6237 here. If you have any questions about your purchase or any other Standby Generators product for sale our customer service representatives are available to help.Whether you just want to buy a Generac Guardian 8 Kw Liquid-Cooled Single Phase 120/240 V Natural Gas Propane Standby Generator with Transfer Switch in Steel Enclosure or shop for your entire home, Wayfair has a zillion things home.

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Return Policy

We want you to love it. If you don't, you may return your purchase within 30 days of delivery. All you need to do is visit our Self-Service Return Center for instructions. Return credits are issued within 24 hours once the item is received and inspected. Please note that shipping charges are non-refundable. The cost of return shipping will be deducted from your refund.

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Customer Reviews

Tell Us What You Think!

Tell us what you think about this product. It will help us provide you with better products in the future and help your fellow Wayfair shopper make better purchases.

Average Overall Rating:
(based on 14 reviews)

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Great generator

 from Gillette, NJ– Verified Buyer

This is well worth the money. I purchased it before Sandy but wasn't fully operational until the next following months. It is able to handle everything except the hot tub.

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 from Springfield, MA– Verified Buyer

I purchased this generator after a year with three separate week long power outages in a short period of time. Have had it long enough to reap the benefit of my investment more than once. It powers nearly everything in my house...automatically! Nothing for me to do. Love, love, love the security it provides.

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Works Great

 from New York

Great value for the generator, and the only reason I gave it 4 stars was the actual experience of purchasing it. Due to the severer NEED, it took lots longer than expected to actually GET the generator during Sandy even though they promised a week.

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Estes shippers not so good

 from Madison, NJ– Verified Buyer

Received it at shippers warehouse fast. Shipper was not good at getting from them to me. Took 6 days just to get it the last 10 miles.

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Good service

 from Northridge, CA– Verified Buyer

Easy to navigate web site, prompt shipping, total very good service. I haven't install it yet. I'll follow up after installation.

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Very Satisfied

 from Plainwell, MI– Verified Buyer

Very Satisfied

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Never trust your home to a Generac

 from Tuftonboro, NH

My wife and I own a second house which is way out on the end of the power line run. Blackouts are frequent and last a long time when they happen. We leave the house open and running year round and like to get out there every couple of weeks during the winter, but have always been afraid that a blackout would freeze and damage the pipes. We finally, after years of being lucky, bought and installed a Guardian 8kw automatic LP generator. Right out of the box, the unit wouldn't run, but after several service visits and a mountain of parts, the generator was pronounced ready to go. Lo and behold, we go out to the house last weekend, the generator status panel lists an overcrank failure, and I've got frozen and blown pipes. My new slogan for Generac that I share with all my friends: Never trust your home to a Generac.

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1 out of 1 people found this review helpful

So far great

 from Dover, PA– Verified Buyer

Easy install for a knowledgeable mechanic, electrician, etc.

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Ready to go

 from Bantam, CT– Verified Buyer

Complete with everything you need.

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Good product,don't buy accessories

 from Pa.

In the event of a power failure,basement flooding is certain in a heavy,prolonged rain.The generac standby generator makes for fewer gray hairs.

The cold weather kit is expensive,and,ours had no adhesive on one face.

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This item is also sometimes listed under the following manufacturer numbers: 6237