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HomePlunge H3
Meet the HomePlunge H3 — the clever little setup that turns your everyday bathtub into a proper cold plunge, without the hassle, hefty price tag, or taking over your whole backyard. Just wheel it in, hook it up, and you’re ready to chill. Literally.
No plumbing. No bags of ice. No dramas.
Whether you’re keen on faster recovery after training, a morning wake-up call that actually works, or just jumping on the cold therapy bandwagon everyone’s banging on about, HomePlunge makes it ridiculously easy.
It cools your tub down fast, keeps the temp steady, and packs away neatly when you’re done — perfect for apartments, smaller homes, or anyone short on space. It's compact enough to easily fit in a car boot, so you can take it to your next sports outing and start your recovery as soon as you're done.
Cold plunging without the full-blown spa setup? Too easy with HomePlunge.
Dimensions
Tech data
Cold Plunge
| Width | 470 mm |
| Depth | 419 mm |
| Height | 521 mm |
| Weight | ~45 kg |
| Weight with arm | 47 kg |
| Sound level | 60 - 75 dB |
| Cooling rate | 1 - 6ºC/ hr |
| Min/ max Temperature | 1 - 30ºC |
| Refrigerant | R32 |
| Filtration | Buil- in |
Power
| Compressor | 1 HP |
| Supply voltage | ~240V/ 50Hz |
| Amperage | 9 A |
| Cooling capacity | ~3 kW |
Useful Resources
HomePlunge H3
$3,900.00
2ºC IN ~90MIN
DESIGNED TO DISAPPEAR INTO YOUR BATHROOM
MADE FOR YOUR BATHTUB
No new plumbing. No dedicated basin.
The H3 drops in beside the tub you already own.
The H3 drops in beside the tub you already own.
COLD, ON YOUR SCHEDULE
Set the temperature in the app. Come home
to a plunge ready to go. Turn it off when you're done.
to a plunge ready to go. Turn it off when you're done.
RUNS 1 -2 HRS A DAY
Unlike always-on plunges, the H3 only works
when you need it. Lower bills. Less upkeep.
when you need it. Lower bills. Less upkeep.
FAQs
Have a question ? We are here to help.
How long does the HomePlunge take to cool your bath?
1 - 2 hours depending on the temperature your water starts at. In, say, Townsville the temperature of cold water out of the tap will be somwhat higher than the equivalent in Hobart.
What are the benefits of cold plunging?
At a basic level, cold exposure causes blood vessels to constrict which reduces blood flow, pain, and swelling. This also causes blood to move closer to the core where it becomes more oxygenated.After warming up, the blood vessels dilate and a flow of richly oxygenated blood can surge back into the tissues to promote healing.
Cold plunges also provide a cortisol spike during and shortly after cold exposure, but in the long term, they've been shown to help reduce high cortisol levels which could have a positive impact on mental health.
How is HomePlunge more energy efficient than other cold plunge alternatives?
Unlike always-on plunges, HomePlunge runs only 1–2 hours a day. Turn it off when you're done and come back tomorrow.
Can I pre-schedule a chill?
Yes. Scheduling is available via the Tuya smart app — set it before leaving for a workout and come back to a ready plunge.
How does the pre-order process work?
Sauna Store has limited numbers of the HomePlunge coming to Australia initially. You can ensure you are able to purchase one with a 50% deposit, with the remaining 50% billed to you when your order is ready for shipping.
What happens if I pre-order then change my mind?
That's no problem. If you want to cancel your pre-order at any point before the order is shipped we will refund the full 50% deposit you placed as well as the shipping fee.
Customer service
Not sure which sauna suits your home? Call our expert team on 1800 439 737 for personalised guidance and support.
Warranty
All of our sauna products come with a warranty. Visit our warranty page for specific information.
Shipping
Experience dependable, fast, and hassle-free shipping you can trust, with a process that makes deliveries simple.
Secure payment
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