Cold plunge · all in one
Sun Home Cold Plunge Pro
Encased stainless plunge with a 1 HP built-in chiller that drives water to 32 F, plus ozone, UV, and filtration.
7.9
Strong
Composite (0-10), cold-plunge-v1.0
Confidence: Verified
By the numbers
- Cooling
- built-in chiller
- Coldest temp
- 32 F
- Water care
- ozone, UV, filtration
- Insulated
- yes
- Capacity
- 150 gal
- Material
- 316 stainless interior, insulated cabinet
- Est. annual electricity
- ~$360/yr
- Warranty
- 1 year
- Price
- $13,799
Strengths
- + Cooling: 10.0/10
- + Water Care: 10.0/10
- + Build & Insulation: 10.0/10
Watch-outs
- - Practical: 3.0/10
Who it is for
- · Anyone who wants cold water on demand without hauling and replacing ice
- · People who want low-maintenance, cleaner water between changes
How it scored
Cooling
10.0/10 · 30%Whether the unit actively chills, and how cold it gets. An ice-only tub is not a self-chilling plunge.
- +6Built-in chiller Apowered chiller included - Cools the water actively, with no need to buy or add ice.
- +2Reaches 45 F or colder B32 F - Reaches at least the 45 F range used in most cold-immersion protocols.
- +2Reaches ice-bath cold B32 F - Reaches 39 F or colder, true ice-bath territory.
Water Care
10.0/10 · 20%Ozone, UV, and filtration that keep the water clean between changes.
- +4Ozone sanitation Bozone - Ozone keeps the water clean between changes.
- +3UV sanitation BUV - UV stage reduces microbial growth.
- +3Filtration / circulation Bfilter + pump - A circulating filter keeps debris out and water clear.
Build & Insulation
10.0/10 · 15%Insulation (holds temperature, lowers running cost) and full-immersion capacity.
- +6Insulated Binsulated shell/cover - Insulation holds temperature and lowers the chiller's running cost.
- +4Full-immersion capacity C150 gal - Large enough for full-body immersion.
Value
4.5/10 · 20%Running cost - the chiller electricity brands rarely put on the box.
- +2.5Chiller running cost vs class A~$360/yr electricity (near class median) - Estimated annual chiller electricity, scored against the chiller-unit median. The cost brands rarely disclose.
- +2Insulation lowers running cost Binsulated - Insulation reduces the electricity needed to hold temperature.
Practical
3.0/10 · 15%Warranty, electrical-safety listing, and plug-and-play convenience.
- +3Plug-and-play Bno manual ice - Runs without hauling and replacing ice.
What to know before buying
- · Powerful built-in chiller reaches as low as 32 F, so it can hold near-freezing water and form surface ice without you supplying any.
- · Includes a multi-step water-care system listed with ozone, UV, and a sediment filter, which matters for reusing the same water.
- · Powered by a roughly 1 horsepower cooling system; running a chiller this strong means a higher ongoing electricity cost.
- · Heavy unit (listed around 345 lbs dry, about 150 gallon capacity) with an outdoor-rated coating; plan placement accordingly.
- · Price runs in the ~$13,799 range; the spend buys near-freezing capability and integrated water care.
FAQ
- How cold does the Cold Plunge Pro get?
- Its 1 HP built-in chiller drives water to 32 F, which in our scoring is the coldest tier we credit, and at 150 gallons it is the largest tub in our set. It also runs ozone, UV, and filtration for water care.
- Is its running cost higher because of the 1 HP chiller?
- We estimate about $360 a year in chiller electricity, slightly above the chiller-unit median in our set, and we surface that under Value as the cost brands rarely put on the box. Its insulated cabinet is one reason that figure is not higher, since insulation reduces the power needed to hold temperature.
Last reviewed 2026-05-30. Scored under cold-plunge-v1.0. See the methodology. Informational only, not medical advice.