HomePlunge H3 Cold Plunge Chiller for Your Bathtub
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HomePlunge H3 Cold Plunge Chiller
Description
The HomePlunge H3 is an award-winning cold plunge chiller that transforms the bathtub you already own into a professional-grade cold plunge - no dedicated tub, no bags of ice, and no plumbing required. Powered by a 1HP compressor, it cools any standard bathtub from warm water down to 34°F in just 45-60 minutes, delivering consistent, repeatable cold water therapy at the exact temperature you dial in. The H3 sits beside your tub on rolling casters, with a patented bendable hose-arm that clips over the rim - nothing is plumbed in, nothing is permanent, and it rolls away when you're done.
Winner of a CES Innovation Award and named to TIME Best Inventions, the H3 earned the highest Garage Gym Reviews score of any indoor cold plunge on their 2026 list. It's built for athletes, wellness enthusiasts, and anyone who wants the benefits of daily cold water immersion without redesigning their bathroom or hauling bags of ice.
Key Features
- 34°F Minimum Temperature: Cools your bathwater to true ice-bath cold without any ice - adjustable in 1°F increments down to 34°F.
- 1HP Compressor: Chills water at a rate of 20-30°F per hour, reaching cold plunge temperatures in 45-60 minutes for most standard tubs.
- Zero Plumbing Required: Plugs into a standard 110V/60Hz household outlet - no electrician, no permits, no permanent installation.
- Patented Bendable Hose-Arm: Conceals both inlet and outlet hoses in a bend-and-stay insulated arm that clips over any tub rim in seconds.
- Tuya Smart App Control: iOS and Android compatible - set your target temp and schedule plunges remotely so your tub is ready when you are.
- Built-In Reusable Filtration: Integrated filter keeps water circulating and clean between sessions - no replacement cartridges, no chemicals required.
- Compact Rolling Footprint (18.35" W x 16.38" D x 20.65" H): Locking casters let you roll it beside the tub during use and stow it in a closet when you're done.
- Low Operating Cost: Draws 4-6 amps while actively chilling (typically under 1 hour per day) - less than $10/month for most users.
- FCC & CE Certified: Meets recognized safety and electromagnetic standards.
- 1-Year Manufacturer Warranty Included: Extendable up to 4 total years with optional SureBright coverage at checkout.
Shipping
Ships Free! Please email us at service@omahasportsandgames.com for a delivery ETA or to confirm shipping details.
What's Included
- HomePlunge H3 Cold Plunge Chiller unit
- Standard 3.5 ft insulated hose-arm (XL 5 ft available as upgrade)
- 1-year manufacturer warranty
Why You'll Love It
The HomePlunge H3 brings professional-grade cold water immersion therapy into your home without the cost, space, or commitment of a dedicated plunge tub - at a fraction of the price of competing systems. It's trusted by UFC fighters, former pro athletes, and everyday wellness enthusiasts who want a reliable, repeatable cold plunge practice built into their routine. The smart app scheduling means your bath can be chilled and waiting the moment you wake up or walk in from the gym - no prep, no ice runs, no guesswork. The reusable built-in filter keeps operating costs genuinely low, and the compact rolling design means it works just as well in an apartment as in a gym facility. If you're serious about recovery, focus, and feeling your best every day, the H3 is the most practical and capable way to bring cold therapy home.
Product Specifications
View Product Specs
| Minimum Temperature | 34°F (adjustable in 1°F increments, cooling only - no heating) |
|---|---|
| Compressor | 1HP |
| Cooling Rate | 20-30°F per hour |
| Time to Cold | 45-60 minutes for most standard bathtubs |
| Noise Level | 65-75 dB during operation |
| Power | 110V / 60Hz standard outlet (220V / 50Hz available upon request) |
| Amperage Draw | 4-6 amps while actively chilling |
| Dimensions | 18.35" W x 16.38" D x 20.65" H |
| Hose-Arm Length | Standard 3.5 ft (XL 5 ft available for +$299) |
| Compatible Tub Volume | 30-110 gallons |
| App Control | Tuya smart app - iOS and Android |
| Filtration | Integrated reusable filter (no replacement cartridges required) |
| Certifications | FCC, CE |
| Warranty | 1-year manufacturer warranty included; extendable to 4 years with SureBright |
| Mobility | Locking casters |
| Installation | No plumbing, no permits - plugs into standard wall outlet |
| Assembly Required | Minimal - hose-arm clicks into chiller, no fasteners or tools needed |
| Shipping | Ships freight; free U.S. shipping included |
FAQ
Will the H3 fit my bathtub?
If your tub holds water and is between 30-110 gallons, the H3 will work. It's been tested on standard alcove tubs, freestanding soakers, clawfoot tubs, and acrylic spa tubs. The chiller doesn't go inside the tub - it sits beside it, and the patented bendable hose-arm clips over the rim to circulate water. Nothing is plumbed in or permanently attached.
How much does it cost to run the H3 each month?
Less than $10/month for most users. The H3 draws 4-6 amps while actively chilling, which is typically under an hour per plunge session. When idle, it draws near zero power. Running it daily costs less than a coffee subscription, and there are no ongoing filter cartridge costs since the built-in filter is reusable.
Do I have to drain the tub after every cold plunge?
No. Most H3 owners keep the same water for about a week and drain on the weekend. The built-in reusable filtration system keeps the water circulating and clean between sessions, so there's no need to drain and refill after every use. You can drain after every plunge if you prefer, but it's a choice - not a requirement.
Does the H3 require any plumbing or electrical work?
None at all. The H3 plugs into any standard 110V/60Hz household outlet - the kind found in any bathroom. No electrician, no plumber, and no permits are needed. Setup takes just a few minutes: fill your tub, click the hose-arm into place over the rim, set your target temperature, and walk away. A 220V/50Hz version is available upon request.
How does the H3 compare to buying bags of ice?
The H3 is more consistent, more convenient, and cheaper over time. Ice baths are inconsistent - the temperature spikes when you get in and warms unevenly as ice melts. Buying ice in bulk gets expensive quickly, and hauling bags is a daily chore. The H3 delivers the exact temperature you set every single time, lets you schedule sessions from your phone, and costs less than $10/month to run - no prep, no cleanup, no ice runs.
Can I control the H3 from my phone?
Yes. The H3 uses the Tuya smart app, available on both iOS and Android. You can set your target temperature and schedule plunge sessions remotely, so your tub can be chilled and ready before you wake up or right when you get home from the gym. You can also adjust settings directly on the unit's touchscreen.
What warranty comes with the H3?
Every H3 comes with a 1-year manufacturer warranty included at no extra cost. At checkout, you can extend coverage up to 4 total years with SureBright, which covers both accidental damage and mechanical failure. Options range from +1 year to +3 additional years.
Thank you for trusting us with your order! This product is shipped directly from the manufacturing warehouse to get to customers all over the U.S. as soon as possible!
While many of our products are prepared and shipped out within 48 hours, some of our items are built to order or require custom pieces that could take 2-6 weeks to prepare before shipping! Please contact us at 888-884-2234 for a delivery ETA if you have a strict timeline.
Thanks!
Omaha Sports & Games Team
Returns & Refunds Policy
Return Policy
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. To start a return, you can contact us at service@omahasportsandgames.com.
If your return request is accepted, it will be up to you as the buyer to return the item in its original packaging, unworn and unused. You as the buyer will be responsible for paying the return shipping. We may be able to assist you in scheduling a pickup for return but the payment will still be your responsibility. You can always contact us for any return question at service@omahasportsandgames.com.
All products are subject to a minimum 15% restocking fee based on the quality of the returned product and packaging.
Items opened, tested, used, or any other non-new condition may be eligible for return based on the manufacturer's return policy.
Shipping Damages and Issues
You must inspect your order upon reception and refuse delivery if you see damage. DO NOT sign for delivery if there is apparent damage to the product. If you sign for the delivery and later claim shipping damage, there is very little we can do to help.
If your order does not require signing at delivery and is instead just dropped off at doorstep with damage, contact us immediately with photos of the damaged boxes.
If your item(s) is defective, damaged or if you receive the wrong item, contact us immediately so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, such as custom products, special orders or personalized items. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items, gift cards, or multiple product bundle discounts.
| Specification name | Specification Value |
|---|---|
| Color pattern | White, Black |