Brass Monkey
A group cold water immersion session in a communal contrast space
Social Wellness

Anyone can fill a launch week. Repeat attendance takes a system.

Cold has become something people do together, and rooms built around it are opening everywhere. A striking space and a strong opening month are the easy part. What carries a studio through the year is a session people can feel working: programmed, progressed, run to a standard. That's what turns first-timers into Tuesday regulars.

The session is the product. Give it a system.

Social wellness runs on the room: people doing something hard together, then coming back to do it again. Cold earns its place in that room when it's more than a moment: dosed, progressed, stress training they choose. Tolerance, Capacity, Regulation. T>C>R™ is the structure a session runs on, so a first-timer and a regular can share the same water on different doses. Breathwork-led entries, guided group immersion, contrast circuits: the formats are yours, and the dose logic underneath is the same. What's established: cold reliably triggers the body's acute stress response. Repeated, controlled exposure trains the recovery side of that response: heart-rate recovery, parasympathetic reactivation. And it gets easier, within about four sessions. That's a story your hosts can tell, session after session, and a reason people keep their spot.

A programmed group session, first-timers and regulars sharing the same water

Contrast, built as a circuit, not a queue.

For dedicated contrast venues, the hot-cold circuit is the offer, which makes the engineering the experience. Water that holds its set-point through back-to-back sessions. Throughput specified to your room and your class size, not a domestic unit asked to serve a timetable. Changeover the schedule can keep up with. Cold stands on its own and contrast is one way to run it. But when contrast is your model, the circuit deserves programming too: timings, sequence and dose classes your hosts can run with a mixed room in the water.

A standard your hosts can run.

The Cold Standard is how cold water immersion is done properly: science, infrastructure, governance. For a social wellness space, the weight sits on programming and governance.

Programming: session formats, dose classes and progression, so one room works for every body in the water and regulars always have somewhere to go next.

Governance: a clear safety floor for group immersion, trained delivery, evidence-graded claims and UK post-sale support through ProCare.

Infrastructure underneath: commercial-grade systems connected on HALO, with live telemetry, water temperature, uptime and remote diagnostics.

Your team runs the water day-to-day and we make that easier, with support and engineers behind you, so faults get caught before they cost a full timetable.

A social wellness room run to The Cold Standard

Water that keeps up with the timetable.

A group session lives on the water: a set-point that holds clean while a full room cycles through, and changeover the timetable can keep up with. That's the job Brass Monkey was built for: from Pro Chill running down to 3°C for up to 75 users a day in smaller venues, to spa-grade systems carrying up to 400 users a day per plunge, sized to your room and your class plan. And where contrast is the whole offer, a dedicated hot-cold circuit built into the venue, Custom design-and-build engineers the cold side of the circuit into the space, alongside your sauna, with plant out of sight and finishes to match the room.

A commercial ice bath specified for group-session throughput

Rooms that run on repeat attendance.

Where communal cold already runs to the standard.

ArcHookeSix SensesSoho House

Building communal cold or contrast into your space?

Tell us about your room, your sessions and your people. We'll shape the right system to the Cold Standard, on HALO, with ProCare behind it.

Download the guide: Specifying Readiness

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