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Chill Tubs · Cold therapy

Three minutes of cold, six hours of clarity.

UK-designed ice baths with a real chill. Get your water down to 3 °C, plus ozone + filtration, plugged into a normal 13 A socket. We have three hard shell models and three inflatable models, designed to live outside.

HIGHLY RATED DESIGNED in the UK 3-year warranty on the chiller FREE delivery
01 / What three minutes does

Minute by minute,
inside the body.

Cold immersion at 2–5 °C is the shortest, most metabolically expensive of the three modalities, and the one with the longest tail. A pharmacological-scale catecholamine release with none of the pharmacology.

0:00
Vasoconstriction kicks in within 5 seconds; peripheral blood retreats to the core.
0:30
Cold-shock response reaches a peak: sharp inhale, elevated heart rate. With practice the gasp reduces; response changes after a week or two.
1:30
Norepinephrine (focus, mood and pain modulation) rises to roughly 5× baseline. It stays elevated for hours.
3:00
Exit. Re-warming triggers a slow flood of dopamine that holds for 4–6 hours and shows up subjectively as clarity and an uplifted mood.
02 / The Chill Tubs Essentials

Plunge anywhere.
From £499.

Inflatable, insulated, packs into a carry bag. Same brand quality as the hard shell range: reinforced PVC, thermal lid, floor pump and repair kit included. No chiller, no plug socket. Fill it, ice it, fold it away. The starting line into cold-water therapy.

04 / The Chill Tubs chiller

Heat mode included too.

Unlike our essentials range, our hard shell Chill Tubs are UK-designed recovery tubs with a sealed refrigerant chiller, and heat mode is included as standard, not an upsell. Plug into a 13 A socket, set the temperature, the tub does the rest.

Heat mode as standard

Competitors charge a premium to add heat. We don't. Every hard shell Chill Tubs chiller runs 3 °C → 40 °C out of the box.

Auto + scheduling

Chill, Heat or Auto. Set the time you want it ready and the chiller drops into standby in between. A great way to save energy.

Ozone + filtration

Closed-loop sanitation across the whole range. Ozone destroys bacteria, the cartridge polishes. Weeks between water changes.

2-yr swap-out warranty

Plug-and-play chiller architecture. Anything goes wrong, individual components or the whole unit swap out, covered for two years.

05 / What the research says

The numbers behind
cold therapy.

A short, controlled stress that triggers a health and wellbeing-boosting recovery response. The literature on cold immersion (peer-reviewed, replicated) is consistent for cold immersion intervention.

5×

Norepinephrine (alertness, focus, attention, heart rate, and blood pressure) elevation during a 3-min, 4 °C plunge

European Journal of Applied Physiology, 2000
250%

Increase in dopamine sustained for several hours post-exit

Šrámek et al., 2000
+15%

Resting metabolic rate elevation linked to brown-fat activation

Journal of Clinical Investigation
−29%

Reduction in upper-respiratory-tract infections in regular cold-shower group

PLOS ONE, 2016
06 / Better together

Pair with heat for the
full kontrastbad protocol.

Heat dilates. Cold constricts. Cycling between the two (what the Nordic countries call kontrastbad) pumps blood through your vasculature in a way neither does alone. The data on its beneficial impact on sleep, mood and inflammation is the strongest in this whole field.

Ice baths are the heart of any wellness yard, an outdoor space designed for recovery, ritual, and rest.

Cold, without the bags of ice

The difference between an ice bath and a cold tub with ice in it is the chiller. Every Chill Tub carries an integrated refrigeration unit that holds the water down to 3 degrees and keeps it there, so the tub is ready when you are rather than after a trip to the shop.

Every model also has heat mode as standard, up to 40 degrees, so the same tub can run warm out of season or as the hot half of a contrast session.

They plug into a standard 13 amp socket, so there is no electrician and no dedicated circuit. Filtration and ozone treatment keep the water clean between changes, which is the part most DIY setups get wrong.

The range starts at £499 across three tiers. Lite is a roto-moulded 400 litre tub, Original steps up to a stainless steel build, and Pro is a 700 litre Aristech acrylic tub rated for outdoor use through a British winter.

Chillers carry a two year warranty and covers one year. Delivery to the UK mainland is free.

If you want the evidence behind cold exposure rather than the marketing, we have written it up in the science of heat and cold.

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