Home cold plunge setups compared: ice tubs, chiller tubs, all-in-ones and DIY
Four ways to keep water cold at home, what each maker's own manual asks of you on wiring, covers and water care, and why a chest freezer is not one of them.
Short answer: There are four home setups: an ice tub or barrel you fill with ice, a stock tank you connect to a separate chiller, a tub sold with its maker’s chiller, and an all-in-one tub with the chiller built in. An ice tub is the cheapest to buy and needs ice every session; a chiller holds the temperature for you. The makers’ manuals ask for the same basics: a GFCI on anything plugged in near the water, a cover secured against children, water changes on a schedule, and a doctor’s check first if you are pregnant or have heart disease or blood pressure problems. We do not recommend converting a chest freezer.
This page compares the four setups and what each maker’s own manual and safety pages ask of you. Prices are what each maker’s US site listed on the date shown, and our home cold plunge and sauna cost guide covers the money in full.
We have not tested any of this equipment, and this page has no affiliate links.
Home cold plunge setups at a glance
| Ice tub or barrel | Stock tank plus a separate chiller | Tub sold with its maker’s chiller | All-in-one tub | |
|---|---|---|---|---|
| How it gets cold | Ice you add before a session | A chiller you connect yourself | The maker’s chiller beside the tub | A chiller built into the tub |
| Holds a set temperature | No | Yes | Yes | Yes |
| Filtration | None unless you add one | The filter or screen you fit | In the chiller loop | Built in, with ozone on the models we read |
| Power | None | Yours to plan, GFCI included | A GFCI on the cord, on the two we read | A dedicated circuit, no extension cord |
| Whose manual covers the whole setup | The tub maker’s | No single maker’s | The maker’s | The maker’s |
| Water changes, by the makers we read | Weekly to every four weeks | Not stated for the tank | Every four weeks to every 6 months | Every 3 weeks to every 6 months |
Ice tubs and barrels: the cheapest start, with ice every session
You fill these with water and add ice before you get in. On Oct. 29, 2026, The Cold Pod listed its 85-gallon inflatable tub at $139.99 and its 120-gallon barrel at $499.99, and Ice Barrel listed the Ice Barrel 500 at $1,749.99 with a lid and cover included.
The running cost is the ice. The Cold Pod says its only running cost is the water and any bags of ice, that the amount depends on your setup, and that some owners use reusable ice blocks or large frozen bottles of water instead.
The water care is yours. The Cold Pod recommends draining and cleaning its tub every 2 weeks. Ice Barrel recommends changing the water every four weeks and says its Water Stabilizer keeps the water cleaner for longer. Plunge says its Evolve tubs used without a chiller need a water change weekly at minimum.
Ice Barrel’s barrels also work with its chiller, so an ice barrel can be upgraded later.
A stock tank and a separate chiller: the do-it-yourself route
This is a farm stock tank plus a chiller you connect yourself. Rubbermaid Commercial, one stock tank maker, describes its 100-gallon BRUTE tank as a water source for livestock; we found no price on its site.
Penguin Chillers listed its Cold Therapy Chiller at $1,949.99, chiller only, on Oct. 30, 2026. Penguin says it can chill an 80 to 120-gallon insulated tub into the 40s, draws 450 watts at 110 to 120 volts, and is outdoor rated only above 32°F. It also says ambient temperature, insulation and sun exposure affect its performance, so the tank you pick matters.
The plumbing has rules too. Penguin’s bulkhead kit fits only tank walls 1/4 inch thick or less, and the chiller should sit within 3 feet of the tank’s drain, no higher than the bottom of the tank.
No single maker’s manual covers this whole setup. We found no GFCI instruction on Penguin’s product page, so the circuit, the GFCI and the cover are yours to plan; see the electrical section below.
Tubs sold with the maker’s chiller
Here the tub and the chiller come from one maker, and one set of instructions covers both. On Oct. 29, 2026, Ice Barrel listed the Ice Barrel 500 with its chiller at $5,749.98, and Plunge listed its Pod with the Pro Chiller at $5,590 in a sale.
Both hold water as low as 37°F. Ice Barrel says its chiller works in ambient temperatures up to 120°F and has a GFCI module on the power cord that should not be submerged. Plunge’s Pro Chiller has a GFCI on the plug end of the cord that must be tested before each use, and it plugs into a dedicated 120-volt, 20-amp outlet at least 5 feet from the water, with no extension cord.
Plunge also asks you to leave its chiller running around the clock, because stagnant water is not sanitary for the system, and to drain and winterize everything if the air stays below 32°F for 12 hours.
All-in-one tubs: chiller, filter and sanitizer in one unit
An all-in-one puts the chiller, pump, filter and sanitizer in a single unit. On Oct. 29, 2026, Plunge listed its All-In Gen 2 at $7,990 in a sale and Renu Therapy its Cold Stoic 2.0 at $9,999. Renu’s Vero ($7,500, cold only) pairs its tub with a chiller in the step.
Plunge says the All-In has built-in ozone and dual filtration and needs a dedicated 120-volt, 20-amp circuit with no extension cord. Renu says every one of its cold plunge models includes filtration plus ozone purification; the Vero runs on a dedicated 120-volt, 15-amp circuit and has a GFCI built into the plug.
Built in does not mean maintenance free. Renu’s Vero manual asks you to clean the filter about every 1 to 3 weeks and to drain, sanitize and refill the tank at least every 3 to 6 weeks. Plunge asks for fresh water in the All-In every 6 months at minimum on its chemical protocol, or every month without one.
Why we do not recommend a chest freezer conversion
We do not recommend turning a chest freezer into a cold plunge. GE’s chest freezer manual says to use the appliance only for its intended purpose, and GE’s warranty does not cover a failure when the freezer is used for other than its intended purpose. We found no freezer maker that approves filling one with water to sit in.
The purpose-built tubs on this page come with what a freezer does not: a GFCI on the cord or plug, a cover with straps or a lid, suction fittings designed against entrapment, and safety instructions written for a person in the water. GE’s electrical rules, a grounded outlet and a strong recommendation against extension cords, are written for the freezer’s own use.
If you already use a freezer this way, every safety rule below applies to you in full, and no maker stands behind the setup.
Water care: what the makers ask for
Cold water still needs care. Plunge warns that poor water quality can lead to skin, ear and urinary tract infections, and that stagnant water is not sanitary.
The routine the makers print is much the same: shower or rinse before you get in (Plunge, Renu), keep the lid or cover on between sessions (Renu, Ice Barrel), clean or change the filter on schedule, and change the water on your maker’s interval. Those intervals run from weekly at minimum for Plunge’s Evolve tubs used without a chiller to every 6 months for its All-In on its chemical protocol; the table below lists each one.
Stay out when you are ill. Renu’s Vero manual says not to use the tub if you are sick, vomiting, have diarrhea or any infectious disease, or have open wounds or skin infections.
We found no CDC guidance written for home cold plunges. Its advice for hot tub users includes showering before you get in and staying out of the water if you are sick with diarrhea.
Electrical safety: GFCI, a dedicated circuit and no extension cords
A GFCI cuts the power in a fraction of a second when current leaks from a circuit. CPSC’s fact sheet says it is designed to protect people from severe or fatal electric shocks, and points to GFCIs especially where electrical equipment is near water.
What the makers ask:
- Test the GFCI. Plunge says before each use. Renu’s Vero maintenance table lists a GFCI test under its annual electrical check, so follow your own model’s manual.
- Use a dedicated circuit. Plunge asks for a dedicated 120-volt, 20-amp outlet; Renu recommends a dedicated circuit for its 120-volt, 15-amp tubs.
- No extension cords. Plunge and Renu both say not to use one.
- Keep power away from the water. Plunge wants the outlet at least 5 feet from the water and no electrical appliance within 5 feet of the tub; Ice Barrel says its GFCI module should not be submerged.
- Hire an electrician. Plunge says electrical work should be done by a licensed electrician and approved by a local building or electrical inspection authority.
Children, covers and drowning
CPSC says a child can drown in as little as 2 inches of water, quickly and silently. Every setup on this page holds far more than that.
- Plunge says not to let anyone under 18 use its tubs unless a medical professional approves and an adult supervises at all times, and to secure the cover with its straps and clip tie downs whenever the tub is not in use. It adds that the cover may not prevent access in all conditions, and that keeping children and pets out is the owner’s job.
- Renu says the Vero is designed for ages 18 or above, and that children should use it only if a physician deems it safe.
- Ice Barrel says its barrels are not recommended for children.
- The Cold Pod says its lid does not lock and is not childproof, and recommends keeping young children away or supervising them nearby.
The Cold Pod’s manual, as we read it, carries no medical or child warning at all, so apply the rules on this page yourself if you use an ice tub.
Who should check with a doctor first, and cold shock
Check with a doctor first if you are pregnant or may be, have obesity, heart disease, high or low blood pressure, circulation problems or diabetes, or take a medicine that causes drowsiness or affects heart rate, blood pressure or circulation. That is Plunge’s list. Renu and Ice Barrel both say to consult your doctor before use, and Ice Barrel does not recommend its barrels for pregnant or breastfeeding women.
Raynaud’s. The NHS says cold can make the fingers and toes of people with Raynaud’s change color, and advises avoiding sudden changes in temperature. Ask your doctor before you plunge.
Cold shock. The National Weather Service says sudden immersion can trigger gasping and rapid breathing in the first 2 to 3 minutes, even in water as warm as 77°F. A review in The Journal of Physiology reports that cold water submersion can induce a high incidence of cardiac arrhythmias in healthy volunteers (Shattock and Tipton, 2012). Keep your face out of the water.
Our cold plunge safety guide, blood pressure guide and pregnancy guide go further.
Plunging alone, alcohol, time limits and hypothermia
- Not alone at first. Plunge says to use its tubs under supervision until you know how your body reacts; Ice Barrel recommends always having a partner present.
- No alcohol or drugs before or during a plunge, say Plunge and Renu.
- No jumping or diving in, says Plunge.
- Check the water temperature with an accurate thermometer before you get in; Plunge says temperature controls can be off by as much as 5°F.
- Keep sessions short. Renu’s Vero manual suggests 1 to 2 minutes for beginners and a maximum of 5 minutes; Ice Barrel says not to exceed 10 minutes in an ice bath.
- Know the signs of hypothermia. Plunge says to stop and call 911 at signs such as violent shivering, sluggishness, speech problems, rigid muscles, blue skin or an erratic heartbeat.
Our temperature and timing guide covers how to start.
Makers’ manuals compared: GFCI, cover, water care and children
Read on each maker’s own US site and support pages on Oct. 29 and 30, 2026. Not a ranking or a recommendation, and we have not tested any of it.
| Product (maker), price listed | Setup | Electrical rule | Cover | Water care | Coldest setting | Children |
|---|---|---|---|---|---|---|
| The Cold Pod USA (The Cold Pod), $139.99 on Oct. 29 | Inflatable ice tub | No power | Insulated cover; the lid does not lock | Drain and clean every 2 weeks | Ice only | Lid not childproof; keep young children away or supervise |
| Ice Barrel 500 (Ice Barrel), $1,749.99 on Oct. 29 | Insulated barrel with ice | No power | Lid and cover included; keep them on between sessions | Change the water every four weeks; Water Stabilizer | Ice only | Not recommended for children |
| Ice Barrel 500 with Ice Barrel Chiller, $5,749.98 on Oct. 29 | Tub with the maker’s chiller | GFCI module on the cord, not to be submerged; about 115 V, 15 A | As above | Chiller filters cleaned or replaced monthly; Stabilize | 37°F | Not recommended for children |
| Plunge Pod with Pro Chiller (Plunge), $5,590 in a sale on Oct. 29 | Tub with the maker’s chiller | GFCI on the plug, tested before each use; dedicated 120 V, 20 A outlet 5 feet from the water; no extension cord | Strap the cover down whenever the tub is not in use | Keep the chiller running; maintain water chemistry per the manual | 37°F | No one under 18 without a medical professional’s approval and adult supervision |
| Plunge All-In Gen 2 (Plunge), $7,990 in a sale on Oct. 29 | All-in-one | Dedicated 120 V, 20 A circuit; no extension cord | Not on the pages read | Fresh water every 6 months on Plunge’s chemical protocol, monthly without | 37°F | Not on the pages read |
| Vero (Renu Therapy), $7,500 cold only on Oct. 29 | Tub with its chiller in the step | GFCI built into the plug, tested in the annual check; dedicated 120 V, 15 A circuit; no extension cord | Keep the tank securely covered when not in use | Filter cleaned every 1 to 3 weeks; drain, sanitize and refill at least every 3 to 6 weeks | 37°F | Designed for ages 18 or above; children only if a physician deems it safe |
| Cold Therapy Chiller (Penguin Chillers) with a tank you supply, $1,949.99 chiller only on Oct. 30 | Stock tank plus a separate chiller | 450 W at 110 to 120 V; no GFCI instruction on the product page | None supplied | Run the pump continuously and keep the filter clean; no filter finer than 50 microns, no ozone venturi | 37°F | No rule on the product page |
| Chest freezer (GE’s manual as the example) | Conversion, not recommended | Grounded outlet; GE strongly recommends against extension cords | Not designed for this use | Not designed for this use | Not designed for this use | GE: use only for its intended purpose |
The tub makers that sell a plugged-in tub all put a GFCI on the cord or plug, ask for a dedicated circuit, or both, but the details differ: Plunge wants its GFCI tested before each use, Renu lists the test in an annual check, and the do-it-yourself chiller page we read gives no GFCI rule at all. Every maker that addresses children says to keep them out. Water care in the table runs from a clean every 2 weeks to fresh water every 6 months, so follow your own model’s manual.
Before you buy or fill: weight, drainage and winter
- Weight. Filled with water, Plunge’s Pod weighs 1,000 lbs, Ice Barrel’s 500 weighs 900 lbs, and Renu’s tubs run from about 1,065 to 1,500 lbs. For a deck, Plunge says to check its maximum load capacity with a qualified building contractor or structural engineer.
- Surface and drainage. Renu suggests a level, water-safe surface near a floor drain; Plunge asks for a waterproof, flat and stable surface. If you have used chemicals, The Cold Pod says to check their maker’s instructions before you discard the water.
- Winter. Penguin’s chiller is outdoor rated only above 32°F and should be drained if the air drops to freezing, and Plunge says to drain and winterize its tubs if the air stays below 32°F for 12 hours.
- The circuit. Plunge says electrical work should be done by a licensed electrician, so plan the circuit before you buy a tub that plugs in.
Home setup or a studio first?
On the makers’ sites on Oct. 29, 2026, a tub with a chiller started at $5,590 in a sale and an ice tub at $139.99. Our cost guide compares those prices with studio memberships, and our sauna and cold plunge price index shows what studios charge.
Test the habit before you buy. Try a few studio sessions, using our guide to where to find a cold plunge, or start with an ice tub, and count how often you actually go.
Our cold plunge vs cold shower comparison covers the cheapest version of all.
FAQ: home cold plunge setups
What is the cheapest home cold plunge setup?
An ice tub. On Oct. 29, 2026, The Cold Pod listed its inflatable tub at $139.99. You then buy ice for each session, and The Cold Pod recommends draining and cleaning the tub every 2 weeks.
Is a chest freezer cold plunge safe?
We do not recommend one. GE’s freezer manual says to use the appliance only for its intended purpose, its warranty does not cover failures from other uses, and we found no freezer maker that approves filling one with water to sit in.
Do I need a GFCI for a home cold plunge?
For anything plugged in near the water, yes. Plunge’s chiller has a GFCI on the plug that you test before each use, Renu’s Vero has one built into the plug, and Ice Barrel’s chiller has a GFCI module on its cord. CPSC’s fact sheet points to GFCIs especially where electrical equipment is near water.
How often should I change the water in a home cold plunge?
It depends on the setup and the maker. Plunge says weekly at minimum for its Evolve tubs used without a chiller. For its chilled tubs, its pages say every 3 months or every 6 months at minimum on its chemical protocol, and monthly without one. Ice Barrel says every four weeks. Renu’s FAQ says every 4 to 6 months, while its Vero manual says at least every 3 to 6 weeks. Follow your own model’s manual.
Do I need a cover for a home cold plunge?
Yes. Ice Barrel and Renu use the cover to keep the water clean and cold, and Plunge says to strap it down whenever the tub is not in use because of the drowning risk to children and pets. A cover is not a child lock: Plunge says it may not prevent access in all conditions, and The Cold Pod says its lid does not lock.
How cold should a home cold plunge be?
Renu suggests 40°F to 60°F, and Ice Barrel says below 60°F, starting closer to 60°F if you are new. The 11 studies in a 2025 review of randomized trials used water from 7°C to 15°C (Cain and colleagues, PLOS ONE, 2025). Our temperature and timing guide covers the ranges.
What does a chiller cost to run?
It depends on how many hours it runs. Penguin Chillers estimates its Cold Therapy Chiller at as low as $18 a month, assuming electricity at $0.12 per kWh, and Renu lists 1080 watts of cooling for the Vero. Put your model’s watts and your state into our running cost calculator.
Who should ask a doctor before using a home cold plunge?
Plunge names pregnancy, obesity, heart disease, high or low blood pressure, circulation problems and diabetes, plus medicines that cause drowsiness or affect heart rate, blood pressure or circulation. The NHS says cold can trigger Raynaud’s symptoms in the fingers and toes. Renu and Ice Barrel say to consult your doctor before use.
The bottom line on home cold plunge setups
An ice tub is the cheapest way to start. A chiller is what holds the temperature for you, whether it is sold with a tub, built into an all-in-one or connected to a stock tank you assemble yourself.
Whichever you choose, follow the maker’s manual: a GFCI on anything plugged in, a cover strapped down against children, water changes on the maker’s schedule, never alone at first, and a doctor’s check first if your heart, blood pressure or a pregnancy is in the picture. We do not recommend converting a chest freezer.
Related reading on home cold plunges
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