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Free shipping
Free to the 48 contiguous U.S. states and DC on this item. Tracking and delivery details by email.
21-day returns
Request a return within 21 days of delivery. Approved change-of-mind returns carry a 20% restocking fee. Damage is made right. Return policy
Description
The Penguin Chillers Outdoor 1/2 HP High Efficiency Water Chiller is a general-purpose water chiller with 5,750 BTU/hr of cooling capacity. Penguin builds it for cold plunges as well as aquariums, hydroponics and process cooling, so it suits a custom or DIY plunge setup where you choose your own tub, pump and plumbing.
This outdoor model wraps the 5,750 BTU/hr high efficiency platform in a stainless steel exterior rated for outdoor installs in any weather above freezing. Drain it completely if temperatures will drop to freezing.
It has no built-in pump, so plan your own pump, filter, tubing and fittings with at least 250 GPH of measurable flow. Penguin calls it a strong foundation for a DIY outdoor plunge; for a plug-and-play setup, see the Penguin Cold Therapy Chiller.
Features
- 5,750 BTU/hr cooling capacity
- Cools water to as low as 37°F
- Runs on 110 to 120V household power
- Outdoor rated with stainless exterior
- Pump and tubing sold separately
- Made in Knoxville, Tennessee
Specifications
| Cooling capacity | 5,750 BTU/hr |
| Coil | Titanium |
| Water temperature range | 37°F to 100°F with water |
| Connections | 1 in female NPT (3/4 in on the 316 stainless version) |
| Refrigerant | R-32 |
| Outdoor rated | Yes, for air temperatures above 32°F |
| Sound rating | 56 dBA |
| Dimensions (L x W x H) | 16.25 x 14.75 x 12 in |
| Weight | 49 lb |
| Electrical | 110 to 120V, single phase, 3.9A, 450W |
| Cord length | 6 ft |
| Penguin model | 0.5HPHEOUTDOOR |
Specifications from Penguin Chillers. Dimensions and weights are approximate.
Setup notes from Penguin
- Needs a separate water pump and tubing (not included). Penguin recommends a Danner Mag Drive 5 to 18 pump; any pump used must be rated under 10 PSI / 23 ft max head.
- Water must flow continuously while the chiller runs. Unplug the chiller before stopping the flow.
- Condensation can form depending on water temperature and room humidity, so plan the location.
Outdoor model: disconnect and drain completely if air temperatures will reach freezing.
Penguin Chillers designs and builds its chillers in Knoxville, Tennessee, and is a member of the Made in Tennessee program.
Warranty and delivery
- 1-year Penguin Chillers warranty included. Extended 2- or 3-year coverage is available where shown as an option. Penguin's warranty applies only to units bought from an authorized dealer, which Restore Suite is.
- Ships from Knoxville, Tennessee. Manufacturer lead time: 2 to 3 business days.
- Shipping cost is shown at checkout before you pay.
- Questions about sizing or setup? Contact us and we will help.
Specifications
| Cooling capacity | 5,750 BTU/hr |
|---|---|
| Coil | Titanium |
| Water temperature range | 37°F to 100°F with water |
| Connections | 1 in female NPT (3/4 in on the 316 stainless version) |
| Refrigerant | R-32 |
| Outdoor rated | Yes, for air temperatures above 32°F |
| Sound rating | 56 dBA |
| Dimensions (L x W x H) | 16.25 x 14.75 x 12 in |
| Weight | 49 lb |
| Electrical | 110 to 120V, single phase, 3.9A, 450W |
| Cord length | 6 ft |
| Penguin model | 0.5HPHEOUTDOOR |
Specifications from the manufacturer. Dimensions are approximate.
Shipping
Free shipping from Knoxville, Tennessee, to the 48 contiguous U.S. states. Most chillers ship within 2 to 5 business days (see the product description for this model's lead time), and tracking is emailed when it ships.
Delivery
Chillers and accessories arrive by parcel carrier. Complete plunges may need help to move into place, so check the weight on the Specifications tab. Inspect the box when it arrives, note any damage, and tell us within 48 hours so we can resolve it for you; damaged or defective units are repaired or replaced.
Before setup, read the setup notes in the description: chiller placement relative to the tub drain matters for proper operation.
Warranty
1-year Penguin Chillers manufacturer warranty included; 2- and 3-year extended coverage available where offered.
1-year Penguin Chillers warranty from the ship date, with optional 2- or 3-year extended coverage where offered. If you pair a Penguin chiller with a tub as a set, a photo of the finished setup may be needed to validate warranty coverage, and we will walk you through it. Restore Suite is your first contact for any question.
Returns: request a return within 21 days of delivery; every return needs pre-approval. Approved returns carry a 20% restocking fee, and you pay return shipping. Custom units cannot be returned.
Reviews
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Learn more from Penguin Chillers
Manuals and documents
Official Penguin Chillers documents for this model. Opens as a PDF.

Why this chiller
An outdoor-rated 5,750 BTU/hr water chiller with a stainless exterior for patio and backyard plunge builds.
- 5,750 BTU/hr cooling capacity
- Cools water to as low as 37°F
- Runs on 110 to 120V household power
- Outdoor rated with stainless exterior

Key specs at a glance
The numbers to check before you order. Full details are on the Specifications tab.
- Cooling capacity
- 5,750 BTU/hr
- Water temperature range
- 37°F to 100°F with water
- Dimensions (L x W x H)
- 16.25 x 14.75 x 12 in
- Weight
- 49 lb
- Electrical
- 110 to 120V, single phase, 3.9A, 450W
Before you buy: what to know
Based on the manufacturer's specs, manuals and our research.
- This is the outdoor version of Penguin's 1/2 HP HE chiller, in a stainless exterior rated outside above freezing. If air will reach freezing, disconnect and drain it completely.
- This chiller has no pump. You need a separate pump and tubing giving at least 250 GPH of measured flow; Penguin recommends a Danner Mag Drive 5 to 18, rated under 10 PSI / 23 ft max head.
- Water must flow the whole time it runs, so unplug the chiller before you stop the pump. Condensation can form with cold water and humid air; place it where drips will not damage anything.
- It suits a custom outdoor plunge where you pick the tub, pump and filter. If you want plug-and-play with a built-in pump, the Penguin Cold Therapy Chiller costs less and is also outdoor rated.
- Penguin accepts returns requested within 21 days, unused and in original packaging, with a 20% restocking fee. Confirm your tub's fittings with us before ordering so a mismatch never comes to that.
Not sure this is the right fit? Ask us or call (945) 280-3243.
Compare Penguin Chillers models
Swipe to compare 4 models
| Model |
Penguin Chillers 1 HP High Efficiency Water Chiller
From $1,999.99 |
Penguin Chillers 1 HP Water Chiller
From $1,899.99 |
Penguin Chillers 1 1/2 HP Water Chiller
From $2,599.99 |
Penguin Chillers Outdoor 1/2 HP High Efficiency Water Chiller
From $1,499.99You are viewing |
|---|---|---|---|---|
| Cooling capacity | 11,500 BTU/hr | 10,000 BTU/hr | 15,000 BTU/hr | 5,750 BTU/hr |
| Electrical | 110 to 120V, single phase, 7.2A, 830W | 110 to 120V, single phase, 7.2A, 830W | 110 to 120V, single phase, 11A, 1,270W | 110 to 120V, single phase, 3.9A, 450W |
Penguin Chillers Outdoor 1/2 HP High Efficiency Water ChillerFrom $1,499.99You are viewing
- Cooling capacity
- 5,750 BTU/hr
- Electrical
- 110 to 120V, single phase, 3.9A, 450W
Penguin Chillers 1 HP High Efficiency Water ChillerFrom $1,999.99
- Cooling capacity
- 11,500 BTU/hr
- Electrical
- 110 to 120V, single phase, 7.2A, 830W
Penguin Chillers 1 HP Water ChillerFrom $1,899.99
- Cooling capacity
- 10,000 BTU/hr
- Electrical
- 110 to 120V, single phase, 7.2A, 830W
Penguin Chillers 1 1/2 HP Water ChillerFrom $2,599.99
- Cooling capacity
- 15,000 BTU/hr
- Electrical
- 110 to 120V, single phase, 11A, 1,270W
Pair it with a sauna
Cold, then heat. Many owners alternate a cold plunge with sauna sessions as a contrast therapy routine for recovery and relaxation. Read the contrast therapy guide
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