Steam & Oak Halla Twin Ice Bath with Chiller

The Halla Twin is the only two-person cold plunge we sell — an oval thermowood tub with a moulded centre divider, so two people sit back to back rather than facing each other awkwardly across a small bath.

It is the shape to choose if cold plunging is something you do with someone.

Why the oval, and why the divider

Most cold plunges are single-person, and the ones claiming two seats usually mean two people sharing one footwell. The Halla Twin has a moulded divider down the centre — each side is a proper seat with its own backrest and legroom.

The oval shape is what makes that possible in a footprint that still fits a normal patio. A round tub big enough for two would take up considerably more ground.

Clad in thermowood, heat-treated rather than chemically preserved. Timber steps included.

Specification

What the chiller actually does

The chiller holds the water at whatever temperature you set, year-round, without ice. Set it to 4°C and it stays at 4°C — in February and in August.

That sounds like a convenience, and it is, but the real effect is on how often the tub gets used. A plunge you can step into at 6am without having remembered to buy ice the night before is a plunge you use daily. One that needs planning is one you use occasionally.

The unit includes a filter, which circulates and cleans the water continuously. That is what makes daily use practical without changing the water constantly.

Prefer to start without one? The same tub is available as a self-fill cold plunge, and a chiller can be retrofitted later.

Water care

Cold water still needs looking after, but far less than a hot tub. The chiller unit includes a filter that circulates and cleans the water continuously. You will also want a sanitiser — we stock tablets — and to change the water periodically depending on use.

Cold water holds bacteria far less readily than hot, so maintenance is genuinely lighter than most people expect. It is not zero.

Siting it

A firm, level base. Water weighs a tonne per cubic metre — a 470 litre tub is nearly half a tonne before anyone gets in. Paving slabs, a concrete pad or a rated deck. Not soft ground, and not a lawn.

Drainage. You will empty it periodically, so think about where several hundred litres will go.

Power. The chiller needs a standard outdoor socket — no special supply, but it must be an RCD-protected exterior socket, not an extension lead through a window.

Cold and heat together

Contrast therapy — hot then cold — is the traditional Finnish pattern, and the reason a plunge tub next to a sauna gets used far more than one on its own. If you are building both, put them close together: the walk between them in a British winter is exactly the friction that stops people bothering.

See our garden saunas and the off-grid gas heaters that let you put one at the far end of the garden without a trench.

2-year warranty

Two years on the tub and on the chiller unit. Covers manufacturing defects and workmanship.

Lead time — please ask before you order

Lead times vary with stock and specification — anything from 2 to 12 weeks. Ask us before you commit and we will give you the real date.

Delivery

Delivered on a pallet. Heavy but manageable with two people.

Images are manufacturer renders.