Cold Plunge at Home | Turn Your Bathtub Into a Cold Plunge | HomePlunge
Cold Plunge at Home

Your bathtub.
34 degrees.
No renovation.

You don't need an outdoor tub, a contractor, or a dedicated space. HomePlunge turns your existing bathtub into a professional-grade cold plunge in minutes.

34°F Minimum temp
60 Mins to chill
$0 Installation cost
Shop the H3 — $2,999 See the Bella — $1,999
34°F
Professional cold plunge temperature
  • ✓ Works with your existing bathtub
  • ✓ Plugs into any standard outlet
  • ✓ No plumbing or installation
  • ✓ Ready in under 60 minutes
  • ✓ Free shipping, 0% financing
$2,999 H3 · Free shipping
⭐ CES Innovation Award ⏱ TIME Best Inventions
34°F Minimum temp (H3)
1HP Motor power
0 Plumbing required
~60min Time to chill
Any tub Compatibility
The problem

Cold plunging at home
shouldn't require a contractor

Traditional Options

The old way is expensive, invasive, and impractical

  • ✗ Dedicated cold plunge tubs cost $3,000–$15,000+
  • ✗ Require outdoor space or a dedicated room
  • ✗ Need plumbing and electrical installation
  • ✗ Ice baths require 20–30 lbs of ice per session
  • ✗ Cold showers only reach ~50°F — not cold enough for real benefits
  • ✗ Renting a spa or gym cold plunge costs $40–$100/session
HomePlunge

Use the bathtub you already have

  • ✓ Turns your existing tub into a 34°F cold plunge
  • ✓ No outdoor space, installation, or plumbing needed
  • ✓ Hose-arm setup over the tub edge — ready in minutes
  • ✓ Plug into any standard outlet
  • ✓ Reuse the same cold water for multiple sessions
  • ✓ CES Innovation Award winner. TIME Best Inventions.
Setup

Cold plunge at home
in three steps

01

Fill your bathtub

Fill your existing bathtub with water as you normally would. Any standard residential tub works — no modifications needed.

⏱ 5 minutes
02

Set up HomePlunge

Hook the hose-arm over the tub edge, connect the unit, and plug it into a standard outlet. No tools, no plumber, no electrician.

⏱ 5 minutes
03

Plunge at 34°F

The H3's 1HP motor chills the water to 34°F in under 60 minutes. Set your temperature, get in, and experience professional-grade cold therapy.

⏱ ~60 min to chill
Compare options

The most practical cold plunge
at home — by far

There are many ways to cold plunge at home. Here's how they stack up against HomePlunge.

HomePlunge H3★ Best for home use
Dedicated Tub
Ice Bath / DIY
Reaches 34°F
✓ Yes
✓ Yes
∼ Varies
Uses existing bathtub
✓ Yes
✗ No
✓ Yes
No installation needed
✓ Yes
✗ No
✓ Yes
No ongoing ice cost
✓ Yes
✓ Yes
✗ $20–40/session
Works in any home
✓ Yes
✗ Needs space
✓ Yes
Cost
$1,999–$2,999
$5,000–$15,000+
$0 + ice costs
Setup time
10 min
Days–weeks
30 min + ice run
Consistent temperature
✓ Precise control
✓ Yes
✗ Inconsistent
Reaches 34°F
HomePlunge H3
✓ Yes
Dedicated Tub
✓ Yes
Ice Bath
∼ Varies
Uses existing bathtub
HomePlunge H3
✓ Yes
Dedicated Tub
✗ No
Ice Bath
✓ Yes
No installation needed
HomePlunge H3
✓ Yes
Dedicated Tub
✗ No
Ice Bath
✓ Yes
No ongoing ice cost
HomePlunge H3
✓ Yes
Dedicated Tub
✓ Yes
Ice Bath
✗ $20–40/session
Cost
HomePlunge H3
$1,999–$2,999
Dedicated Tub
$5K–$15K+
Ice Bath
$0 + ice
Setup time
HomePlunge H3
10 min
Dedicated Tub
Days–weeks
Ice Bath
30 min + ice run
Consistent temperature
HomePlunge H3
✓ Precise
Dedicated Tub
✓ Yes
Ice Bath
✗ Inconsistent
Questions

Everything you need to know
about cold plunging at home

Can I actually cold plunge in my bathtub?
Yes — and it's exactly what HomePlunge was designed for. The H3 hooks over your tub edge via a hose-arm attachment, cools your existing bathtub water to 34°F, and requires no modifications to your bathroom. Any standard residential bathtub works.
How long does it take to cool the water?
The H3's 1HP motor chills a full bathtub to 34°F in approximately 60 minutes. The Bella (½HP) reaches 41°F in a similar timeframe. You can set it before bed or while getting ready and it'll be ready when you are.
Do I need to call a plumber or electrician?
No. HomePlunge plugs into any standard 110V household outlet. Setup is entirely DIY — the hose-arm hangs over your tub edge and you fill the tub with your normal faucet. No installation, no contractors, no permits.
What's the difference between the H3 and Bella?
The H3 ($2,999) uses a 1HP motor and cools to 34°F — the coldest temperature available for home use. The Bella ($1,999) uses a ½HP motor, cools to 41°F, and ships in 1–2 business days. Both use your existing bathtub with no installation required.
Can I reuse the water between sessions?
Yes. The HomePlunge system circulates and filters the water, so you can keep the same water cold across multiple sessions throughout the week. This saves you from refilling and re-chilling every time — and eliminates the ice cost entirely.
What temperature should I cold plunge at?
Most research supports cold water immersion between 50–59°F for beginners and 39–50°F for experienced cold plungers. Advanced practitioners and athletes often use 34–39°F. The HomePlunge H3 lets you dial in any temperature in this range precisely.
How often should I cold plunge?
Most research and practitioners recommend 3–5 sessions per week, 2–10 minutes each. Daily plunging is safe and practiced by many. Because HomePlunge makes setup effortless, daily use becomes a realistic routine — not a production.
Does HomePlunge work for apartments?
Yes — it was built for exactly this. No outdoor space, no dedicated room, no building permits required. If you have a bathtub and an outlet, you can cold plunge at home. It's the only professional-grade cold plunge solution designed specifically for apartments and smaller homes.
Get started

Your bathtub is already there.
Make it cold.

Free shipping. 0% financing. CES Innovation Award winner. Trusted by the NFLPA, MLBPA, and MLSPA. No installation required.

Shop H3 — $2,999 Shop Bella — $1,999