1/3 HP Glycol Chiller

(6 customer reviews)


FREE SHIPPING (Continental 48 States)

Current Lead Time: 2-3 Business Days

  • 2,200 BTU/Hr @ 28°F
  • 1 Year Product Warranty
  • Proudly made in the USA
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1/3 HP Glycol Chiller
  • 1.25 Gallon Reservoir
  • 2,200 BTU/hr @ 28°F
  • 56 dBA 
  • 6′ Power Cord
  • 110 – 120V / 3.9A / 450W
  • 18″W x 16″D x 13.25″H
  • 48 Pounds
  • 1 Year Product Warranty
  • Proudly made in the USA

Our Standard line of Glycol Chillers are suitable for applications down to around 5° Fahrenheit depending on the heat load. The built-in controller maintains the glycol mixtures temperature at its set point. This makes it ideal for the brewing market, along with many other low temperature applications. By adding a submersible pump, the chilled glycol mixture can then be pumped out to equipment requiring cooling. There are 4 inlets and 4 outlets 3/8″ tubing fittings in the lid of the reservoir along with an additional opening to run the power cord for a pump through. The insulated reservoir holds 1.25 gallons of glycol. Our standard line of chillers can also be used as a bath type chiller as well.

It’s our recommendation to use a 35% – 40% glycol to water mix due to the ease of calculating the mix ratio and the buffer it provides. Depending upon the application (desired operating temp/freeze point) you can use any combination of water to glycol mix ratio that you prefer however, it’s a standard practice for brewing applications to use a 35% to 40% mix ratio. During testing we used a 50% glycol to 50% water mix ratio to temperatures as low as negative -14° Fahrenheit without any freezing issues.

Mixing Example: 1 Gallon of Glycol + 1.75 Gallon of Water = 36.3% Glycol Mix.
1.75 Gallons of liquid also equals 7 quarts or 14 Pints or 28 Cups of liquid.

While our chillers are perfect for maintaining fermentation temperatures/crash cooling, it’s not recommended to use them for dropping wort from boiling temperatures. It is a common practice to use either a 2-stage system where the chiller pre-cools the water which then cools the boiling wort or you can use water to drop the temperatures down to about 100° Fahrenheit, then switch over to using the chiller. NOTE: the glycol mixture returning to the chiller should never be allowed to reach more than 100° Fahrenheit.

It is a typical scenario to use one pump per fermenter or vessel that you wish to cool. In this type of setup, each pump used will require its own individual controller allowing for the pump to be turned on and off independently of other pumps. The controller on the Chiller itself will regulate the glycol temperature within the chillers reservoir (for example say 28° Fahrenheit). The controller attached to the pump will monitor the temperature of your vessel/fermenter and regulate the flow of the cooled glycol to the vessel to chill to your desired temperature. Our chillers can be customized to meet your load needs.

Penguin Chillers is an American owned and operated company and we manufacture all of our chillers in Knoxville, TN. By purchasing your chiller directly from us we can continue offering you quality service throughout the life of your unit. Our chillers are used in a wide variety of applications. If you need liquid of any sort cooled, we’re here to help. Contact us at Support@PenguinChillers.com.

Chiller Specs



BTU/hr @ 28°F




1/3 HP

1.25 Gallon

2,200 BTU/hr @ 28°F

110 – 120V / 3.9A / 450W / Single

18″W x 16″D x 13.25″H

48 lbs

1/2 HP

2 Gallon

2,850 BTU/hr @ 28°F

110 – 120V / 3.9A / 450W / Single

16.25″W x 23.25″D x13.25″H

54 lbs

1 HP

3 Gallon

5,250 BTU/hr @ 28°F

110 – 120V / 7.2A / 830W / Single

19″W x 28″D x 17″H

95 lbs

Sizing a Glycol Chiller for Brewing: These suggestions assume a decently insulated vessel (neoprene jacket or better) in a modest ambient temperature of 80° Fahrenheit. If your setup is un-insulated or running in hotter ambient conditions, you’ll need to allow for more BTU per hour. The cold crash is figured for about 18 hours so if you want a faster crash you’ll need to add more BTU’s per hour. When in doubt, use the suggestions for a vessel that is one to two sizes larger than your actual size.


Fermentation: ~65°F

Cold Crash:  from ~65°F down to ~35°F

Maintaining Cold: ~35°F

7 gal

60 BTU/hr

300 BTU/hr

120 BTU/hr

14 gal

90 BTU/hr

600 BTU/hr

180 BTU/hr


150 BTU/hr

1,000 BTU/hr

300 BTU/hr


300 BTU/hr

2,000 BTU/hr

600 BTU/hr


450 BTU/hr

3,000 BTU/hr

900 BTU/hr


600 BTU/hr

4,300 BTU/hr

1,125 BTU/hr


850 BTU/hr

6,000 BTU/hr

1,600 BTU/hr

10 BBL

1,100 BTU/hr

8,650 BTU/hr

1,900 BTU/hr

Applications currently using a Penguin Chiller include, but not limited to:

Marine & Reef Tanks – Distilling – Drag Racing – Bait Tanks – Brewing – Lobster Tanks – Wineries – Hydroponics – Cold Therapy – Aquaponics – Lasers – Research Science – Electroplating – Computers – Printing Presses – Injection Molding – Milk/Butter/Candy/Pasta/Food Production – Extractions – Craft Soda – Hyperbaric Chambers – Waste Water Treatment – Welding – 3d Printing


6 reviews for 1/3 HP Glycol Chiller

  1. Michael W. Rimmey (verified owner)

    Just finished cold crashing my first brew using the Penguin 1/3 HP Chiller. I can say the chiller is amazing and dropped the temperature of a 5.5 gallon batch in a CF10 Spike conical from 70 to 36 degrees in just under 4 hours. The chiller is quiet and cools the glycol tank very quickly. I am very happy with this purchase and the team at Penguin were awesome to work with. Thanks for a great American made product! I hope to be cold crashing my next batch soon!

  2. Victor (verified owner)

    First off, the 1/3 HP GC is reasonably priced. I purchased it w/ the extended warranty to be on the safe side. The instructions are easy to follow. I assembled my FTSs2 onto both SS BrewTech Chronical Fermenters. I threw tubing as instructed, and added the Ss BrewTech Neoprene sleeve to prevent condensation from taking place as I will be cold crashing between 35-38F both fermenters simultaneously, and will be chilling worts down to 68F for fermentation. I went w/ the 50/50 glycol-to-distilled water recommended mix, plugged it in, and set the chiller temp to 28F. It went down from 77F to 28F in just under 10 minutes! I did a test run w/ water on both fermenters, and set both temps down to 65F. After the 5 minute delayed protection (factory setting w/ Ss BrewTech), both systems turned on and chilled the water down to the aforementioned goal temps in under 15 minutes. As for now, I’m amazed and super content w/ my purchase of the Penguin 1/3 HP GC. Brew day is this coming weekend, and I’m sure it’ll be successful. Oh, before I forget. The GC is not loud at all!


  3. Aric Elmore

    Received my chiller last night after trying the refrigerator with ice water method and failed miserably… This chiller did awesome!! I put 115 degree water into the fermenter and it cooled it down to 34 degrees in no time! I ferment in a CF5 in the garage so this worked great!!!

  4. Jacob

    I’ve had this chiller nearly 2 years, and it has easily kept 40+ batches of beer cool while fermenting with cold crashing at the end. I have two 5 gallon Spike conicals in a 70 degree basement, and it can easily cold crash both at the same time without any temperature rise in the glycol reservoir. I would imagine it would have no problem keeping up with four fermenters as advertised even in hotter conditions.
    I did have an issue with the glycol reservoir cracking and causing some leaking after the warranty was expired. When I contacted Penguin, my issue was handled promptly with Penguin paying to have it packaged, shipped, repaired, and returned to me. Eric the owner worked with me directly and is clearly very invested in ensuring that his company is producing and standing behind a quality product.

  5. Mitchell

    I’ve had the chiller now for about a month and it’s been working great! We will see how things end up over time, but one thing I wanted to rate highly is the customer service. Raelyn was very fast and helpful in responding to my questions regarding maintenance of the unit. So far, this company is one that I am happy to have done business with. Thank you!

  6. Marc (verified owner)

    I’ve owned the 1/3HP chiller for 18 months now and it has exceeded my expectations. It is quiet, compact, and easily cold crashed three Spike Flex+ 7gal fermenters to 34F for a full week in 80+ degree heat. I expect to add a fourth fermenter and have no doubt that this chiller will be able to support it. Thanks for the great product!

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