1/3 HP Glycol Chiller

(6 customer reviews)


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Current Lead Time: 5-7 Business Days

1/3 HP Glycol Bath Chiller
2200 BTU/hr @ 28F
1 year warranty
Proudly Built in USA

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Item Description

Our Glycol chiller allows users to achieve lower temperatures than our standard line of water chillers.  The glycol chiller is suitable for applications down to about 5F depending on the heat load. This makes it ideal for the brewing market, along with many other low temperature applications. The built in controller maintains the temperature of the glycol at the set point.  It can be used as a typical laboratory bath chiller or by using a submersible pump, chilled glycol can be pumped out to equipment requiring cooling. There are 4 inlet and 4 outlet 3/8″ tubing fittings in the lid of the reservoir along with an addition hole to run the power cord for each pump. (the photo showing only 2 barbs in/out needs updating). The insulated reservoir holds 5 quarts of glycol.

Depending on application (desired operating temp/freeze point) you can use any combination of water/glycol you prefer. It’s typical for brewing applications to use about 33-50% glycol to water. On our testing down to -14F we used a 50/50 mix without any freezing issues. It’s our recommendation to use a 50/50 mix due to ease of calculating the mix and the buffer it provides compared to 33% mix which if off just a little bit can freeze at normal operating temperatures.


For brewing applications:

The chiller can be used on up to 4 fermenters at the same time.

Intended for maintaining fermentation temps/crash cooling.  Not recommended for dropping wort from boiling temps.  It is common practice to either use a 2 stage system where the chiller pre-cools tap water that then cools the boiling wort, or tap water is used first to drop the temps down to about 100F, then switch over to using the chiller.

It is typical to use one pump per fermenter or vessel you wish to cool.  In this type of setup each pump requires an individual controller to turn each pump on/off independently. The controller on the Glycol Chiller will regulate the temperature of the glycol (for example 28F), the controllers on the pumps would regulate the temperature of each vessel independently by regulating the flow of 28F glycol to that vessel.


Cooling provided:

  • 2200 BTU/hr @ 28F


Sizing a Glycol Chiller for Brewing:

These suggestions assume a decently insulated vessel (neoprene jacket or better) in a modest ambient temperature of 80F. If your setup is un-insulated, or running in hotter ambient conditions you’ll need to allow for more BTU/hr. The cold crash is figured for about 18hrs, if you want a faster crash you’ll need to add more BTU/hr. When in doubt, use the suggestions for a vessel 1-2 sizes bigger than your actual size.



Fermentation Temps


During Cold Crash


Maintain Cold Temps


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

1000 BTU/hr

300 BTU/hr


300 BTU/hr

2000 BTU/hr

600 BTU/hr


450 BTU/hr

3000 BTU/hr

900 BTU/hr


600 BTU/hr

4300 BTU/hr

1125 BTU/hr


850 BTU/hr

6000 BTU/hr

1600 BTU/hr

10 BBL

1100 BTU/hr

8650 BTU/hr

1900 BTU/hr

• 1/3 Horsepower
• 1.25 gallon reservoir
• Lowest recommended operation 5F (achieving these temperatures is highly dependent on application)
• 115V / 3.9A / 450W
• 6′ power cord
• 48lbs
• 56 dBA (Quiet)
• 16″L x 18″W x13.25″H
• 1 year warranty
• Proudly Built in USA

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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