Penguin / Product research
Penguin Chillers 1/2 HP Water Chiller
New purchases on Plunge Junkies are paused while we prepare for 2028. This page preserves product information for research and existing owners. It is not a new testing endorsement.
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Before you buy
Penguin still sells the 1/2 HP standard chiller. It is the smallest unit in its water chiller line: 5,000 BTU/hr from a titanium coil in a PVC shell, rated 37 to 100°F with water.
- Power: 110 to 120V, 3.9 A, 450 W, 6-foot cord.
- Size: 16.25 x 14.75 x 12 inches, 39 pounds. 56 dBA.
- Ports: 1-inch female NPT. Titanium coil only; no 316 stainless option on this model.
- Pump not included. Penguin recommends a Danner Mag Drive 5.0 to 18, or any pump rated under 10 PSI (23 feet of head).
- Indoor use only. Water must flow whenever the chiller is on. Unplug the chiller before you stop the pump.
- Warranty: 1 year included, with paid 2- and 3-year extensions.
Who it suits: an indoor DIY build where you already have the tub, pump, filter and tubing. At the same 450 W, the 1/2 HP HE adds 750 BTU/hr, so compare the two before you buy. If you want the pump built in and an outdoor rating, Penguin points plunge buyers to its Cold Therapy Chiller. Check your tub against our chiller sizing calculator first.
Penguin 1/2 HP Water Chiller specifications and Penguin guides and manuals.
Product information
Historical catalog information. Specifications, included equipment and manufacturer terms can change. Use the current exact-model manual and seller’s listing before planning a purchase or installation.
NOTE:
- This chiller is not intended for outdoor use. Additionally, please place any set-up using this chiller in area that can withstand wetness, moisture, and/or condensation.
- If you plan to use this chiller for a DIY cold plunge or ice bath, you'll need your own pump, filter, and tubing.
- For a complete cold plunge build rated for outdoor use, check out the Penguin Chillers Cold Therapy Chiller.
The Penguin Chillers 1/2 HP Water Chiller provides powerful and efficient cooling for various applications, including cold plunge tubs, aquariums, brewing, and more. With 5,000 BTU/Hour of cooling capacity, this chiller can effectively lower water temperatures for tanks and systems within its size range.
Key Features:
- 1/2 HP compressor: 5,000 BTU/Hr cooling capacity
- Titanium Heat Exchanger: Prevents copper corrosion to keep water pure. Safe for marine life
- Digital temperature control: Maintain precise temperature
- Quiet operation: only 56 dBA noise output
- Durable steel construction: built to last
- Made in USA: quality workmanship
- Energy efficient: 450 Watts
Convenient Setup
The 1/2 HP chiller plugs into a standard 110V outlet and draws only 3.9 Amps. The compact size allows flexible positioning. It can pair with a variety of pumps up to 1800 GPH.
Reliable Performance
This chiller provides reliable cooling for hydroponics, marine tanks, research labs, food/beverage production, industrial uses, and more. Contact Penguin Chillers to learn about integrating it into your system.
Made in USA
Penguin Chillers are engineered and hand-assembled in the USA using high-quality components. Attention to detail and rigorous testing ensure years of trouble-free operation.
Contact Plunge Junkies to learn more about integrating this chiller into your cold plunge setup!
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