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Model #100174

Store SKU #1001611727

8500-Watt Air Cooled Home Standby Generator with 50 Amp Indoor Transfer Switch (not for CA)

  • Automatic transfer switch provides seamless power during outages
  • features advanced sound dampening for a 59.5 dBA noise level
  • Reliable between -22 degrees F and 104 degrees F
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Product Overview

Lifestyle image of a man inspecting the generators engine and controls using the open gull wing design

Innovative Gull Wing Design

Enjoy easy access to the engine and control panel, plus get a full view of the onboard control system.

Lifestyle image of generator installed outside a home near the back porch

Permanently Installed Outside Your Home

The generator starts automatically when the power goes out and returns to standby when power is restored.

Alternate image of ATS50 Indoor-Rated Automatic Transfer Switch

ATS50 Indoor-Rated Automatic Transfer Switch

The switch operates a 50 amp, 12 circuit load and is ideal for powering emergency essentials during an outage.

Closeup image of water drops on the generator

All-Weather Steel Enclosure

Protected from the elements, this unit is designed to operate in sub-zero temperatures or extreme heat.

Closeup image of Onboard Control System

Onboard Control System

Designed for easy access, this unit also performs weekly self-diagnostic tests.

Alternate image of the advanced sound dampening encasement

Quietest in Class

Advanced sound dampening and a low-tone muffler allow this generator to operate at a 59.5 dBA noise level.

Lifestyle image of generator installed to a home natural gas system

Never Needs Refueling or Charging

The generator is connected to your propane or natural gas system, plus the battery charger ensures it’s always ready to start.

Icon image of 439cc engine

Champion 439cc Engine

Enjoy 8.5-kilowatts of continuous power on propane and 7.5-kilowatts on natural gas.

Icon image of 59.5 dBA noise level

59.5 dBA

The residential-friendly noise level is about the same as normal conversation.

Icon image of the natural gas and LPG fuel options

Two Fuel Options

This generator stays connected to your propane or natural gas system and never needs refueling.

Icon image of a 24 showing the fully automatic start and standby

Fully Automatic

Whether you’re at home or away, the generator starts and returns to standby automatically.

Icon image of a computer screen showing less than 5% total harmonic distortion

Clean Power

Produces less than 5% THD to ensure safe use with the most sensitive electronics.

Icon image of snowflake/thermometer showing sub zero start

Sub Zero Start

Operates in temperatures ranging from -22° F to 104° F with no warming kit necessary.

The Champion Power Equipment 100174 8.5-kW Home Standby Generator with an ATS50 Indoor-Rated Automatic Transfer Switch is The Simple Solution to a power outage. The generator starts automatically when the power goes out and returns to standby when power is restored. You'll have the starting power you need during an emergency since the onboard battery charger maintains the charge at all times, plus, since the generator is connected to your propane or natural gas system, it never needs refueling. The ATS50 automatic transfer switch operates a 50 Amp, 12 circuit load (8 space sub panel allows up to 4 tandem breakers). It is housed in a NEMA 1 rated enclosure for indoor use (indoor switch not recommended for CA installation, see model #100177). Our innovative gull-wing design provides easy access to the engine and control panel and allows a full view of the onboard control system. The Champion 439cc OHV engine provides 8.5-kilowatts of continuous power on propane and 7.5-kilowatts on natural gas. It produces 35.4 Amp at 240-Volt on propane and 31.3 Amp at 240-Volt on natural gas. The alternator produces less than 5% total harmonic distortion (THD) to ensure safe use with even the most sensitive electronics. This generator is available for all 50 states, and the ATS50 is UL and cUL listed in the US and Canada. Champion Support and our nationwide network of service centers will back your purchase up with a 10-year limited warranty and free lifetime technical support.
  • Need help with service or repair? Champion Power Equipment is available to help 24 hours a day, 7 days a week. Call us at 1-877-338-0999.
  • ATS50 emergency essentials automatic transfer switch has 8 available circuits available and provides seamless power to your home during an outage (not recommended for CA installation, see model #100177)
  • Thanks to advanced sound dampening and a specially designed low-tone muffler, this generator operates at a residential-friendly 59.5 dBA noise level
  • 24-Volt starting system operates in sub-zero or extreme heat (between minus 22 degree F and 104 degree F) with no warming kit necessary, plus the generator performs weekly self-diagnostic tests
  • 8.5-kilowatt generator provides 8500-Watt of continuous power on propane and 7500-Watt on natural gas, with no refueling, no manual operation and no extension cords needed
  • Accessories include HSB enclosure keys, LPG jets, jet change tool, oil drain pan, battery cables and hardware, flexible fuel line
  • Includes 10-year limited warranty with free lifetime technical support from dedicated experts
  • Champion support
  • California residents

Additional Resources

From the Manufacturer

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8500-Watt Air Cooled Home Standby Generator with 50 Amp Indoor Transfer Switch (not for CA)
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BrandChampion Power EquipmentChampion Power EquipmentChampion Power Equipment
Name8500-Watt Air Cooled Home Standby Generator with 50 Amp Indoor Transfer Switch (not for CA)8500-Watt Air Cooled Standby Generator with 50 Amp NEMA 3 and 12 Circuit Transfer Switch12500-Watt Air Cooled Automatic Home Standby Generator with 100 Amp 14 Circuit Transfer Switch
Price
$239505
$331033
$379900
Ratings
(57)
(338)
(55)
Running Wattage8500850012500
FeaturesBuilt-in Fuel Gauge,Low Oil ShutdownBuilt-in Fuel Gauge,Low Oil ShutdownBuilt-in Fuel Gauge,Low Oil Shutdown
ApplicationHome StandbyHome StandbyHome Standby
IncludedAutomatic Transfer SwitchAutomatic Transfer SwitchAutomatic Transfer Switch
Fuel TechnologyDual FuelDual FuelDual Fuel
Voltage (volts)120/240120/240120/240
Starting Wattage8500850012500
Start TypeElectric SwitchElectric SwitchElectric Switch
View ProductView ProductView Product

Specifications

Dimensions

Product Height (in.)25Product Length (in.)48
Product Width (in.)2.6

Details

ApplicationHome StandbyBuilt-in inverterNo
CA (CARB) CompliantCARB CompliantColor FamilyGray
Engine Displacement (cc)439Engine MakeOEM Branded Engine
FeaturesBuilt-in Fuel Gauge,Low Oil ShutdownFuel Tank Capacity (gallons)0 gal
Fuel TechnologyDual FuelFull load fuel consumption (gallons/hour)1.5
Half-Load Run Time0IncludedAutomatic Transfer Switch
Number of Outlets1Operational Volume (dB)59.5
Outlet Type120/240 Single PhasePower/Fuel TypeNatural Gas,Propane
Product Weight (lb.)300Response Time (sec.)1
Returnable30-DayRunning Wattage8500
Start TypeElectric SwitchStarting Wattage8500
Suggested UsesLarge Appliances,Small Appliances,Small ElectronicsVoltage (volts)120/240

Warranty / Certifications

Certifications and ListingsEPA Approved,ETL Listed,cULus ListedManufacturer Warranty10-Year Limited Warranty

Questions & Answers

Typical questions asked about products:

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Customer Reviews

  • 4.7
    out of 57 reviews
  • 96%recommend this product
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Showing 1-10 of 57 reviews
Up and running in no time
I received the generator delivered directly to my home. I just needed to pick up the batteries. The Transfer switch was with it and makes for a complete unit. The installation went smoothly. It looks good and runs smoothly and does exactly as I hoped it would.
by
    • Recommended
    Ready to go package
    Great install and start up. Kicked off right away after installations, controls are easy to understand and use.
    by
      • Recommended
      First Impression - A Great Product
      This unit seems well made and it fired up without any problems on the first try. Long term reliability is unknown, but I will file another review if any problems show up. The price seems fair, and the unit was in stock! The only low marks would be the Installation Manual - it is not clear in spots and the electrical connection has changed and the manual has not been revised. Customer service was great on these issues and responded promptly. To this point, I would buy the unit again.
      by
      • Verified Purchase
      • Recommended
      This was a good experience
      I was concerned about needing a whole house generator and not having experience with them. I did a lot of reading online and started to like what i saw about Champion. They referred me to Norwall Power Systems and i found them to be a good reseller. The shipping container was very well built and the shipper was a quality company too. I had several questions about the generator and the transfer switch and they all were answered completely. I am happiest of all with the quality of the construction. It is clean looking and simple. It is well built with good hardware and fittings
      by
        • Recommended
        As Always an excellent product!
        Generator 100174 Home standby generator I am very happy with the purchase of my latest Champion generator (I own 3) Install was a breeze Easily powers refrigerator, stove, chest freezer, pellet stove, furnace and various space heaters, lights, all the routers and tv's. when i did the initial load test I added 3 window air conditioners. Functioned without a hiccup Champion is my my go to for power products
        by
        • Verified Purchase
        • Recommended
        It was the right backup generator and ATS
        As an elevator engineer, I understand mechanical and electrical equipment. I did a lot of research in selecting a backup generator for my residence and home offices. We run two businesses out of our home and power uptime is critical. Here in the California Wine Country, we are experiencing seasonal fires, high winds and extreme heat waves. All of these events are conditions requiring our utility, PG&E, to cut power - sometimes for extended periods. We wanted a backup generator and automatic transfer switch (ATS) that was reliable, reasonably quiet and with a light environmental footprint. Doing the power demand calcs on what we needed and considering our energy efficient, modern house with LED lighting, we chose a partial house solution. All equipment went in without a hitch, and all works perfectly. We worked with Sonoma County regarding permitting and to assure maximum safety and compliance. We would recommend Champion to all.
        by
        • Verified Purchase
        • Recommended
        Fantastic 8.5 generator and even better customer support
        I've had two Champion portable generators for more than 15 years and they still run as good as the day they were new and they each have hundreds of hours on them.  I had great service and customer support with those generators so when I decided to install a Home Standby Generator, I went first to Champion.   Adam at Champion helped me select the right model.   I finished the testing procedures with excellent support from Adam Spero at Champion answering every question and expediting materials as needed.   Just as I finished the install it started snowing.  15 hours later the utility failed and I've been on the generator 8 hours with 3 returns to the utility for a few minutes before they failed again and the Champion kicked right on.  I'm delighted with the low noise level, quick starts and rock solid voltage and frequency.  When I kick on a 1500w microwave or other load there is no flicker or change in the tone of the generator, it just purrs along.  Byond the great machine I can't say enough good about the support from Adam from making the choice on which generator I needed to advice on site placement and all other technical support ... Delighted
        by
          • Recommended
          Fantastic 8.5 generator and even better customer support
          I've had two Champion portable generators for more than 15 years and they still run as good as the day they were new and they each have hundreds of hours on them.  I had great service and customer support with those generators so when I decided to install a Home Standby Generator, I went first to Champion.   Adam at Champion helped me select the right model.   I finished the testing procedures with excellent support from Adam Spero at Champion answering every question and expediting materials as needed.   Just as I finished the install it started snowing.  15 hours later the utility failed and I've been on the generator 8 hours with 3 returns to the utility for a few minutes before they failed again and the Champion kicked right on.  I'm sitting inside warm and the Champion is on and off as needed to keep the house warm and functional. I'm delighted with the low noise level, quick starts and rock solid voltage and frequency.  When I kick on a 1500w microwave or other load there is no flicker or change in the tone of the generator, it just purrs along.  Byond the great machine I can't say enough good about the support from Adam from making the choice on which generator I needed to advice on site placement and all other technical support ... Delighted
          by
            • Recommended
            This generator is a beautifully engineered product. It is compact, quiet, easily installed, easy ...
            This generator is a beautifully engineered product. It is compact, quiet, easily installed, easy to service and will start and stop automatically depending on the state of the normal utility power. The transfer switch provided with this unit is compact, easy to install and wire. After installation, the generator and transfer switch passed all of the startup tests, including the fully automatic mode and functioned perfectly. I am very pleased with this product and would recommend it for anyone needing a permanently installed backup generator system. A note of caution: The State of California requires that permits issued from the state are required if the system is being installed for a manufactured home. In addition, county permits may also be required.
            by
            Response from Champion Power ExpertNov 27, 2019
            Thank you for leaving us this informative review!
            • Verified Purchase
            • Recommended
            5 found this review helpful
            I would highly recommend this product.
            This generator is a beautifully engineered product. It is compact, quiet, and functioned perfectly after installation. The combination of generator and matching transfer switch take all of the guessing out of the transfer switch selection. This package is meant to be a permanently installed unit. It weighs 400 pounds and needs to be mounted on a firm base, protected from water. Be aware that you are responsible for supplying all of the wire, including a ten conductor signal cable, and an eight foot long grounding rod.
            by
              • Recommended
              Showing 1-10 of 57 reviews