Both baths offer generous immersion, but their layouts create different user experiences, and the difference shows up in the first ten seconds rather than on a specification sheet. Choosing between them is mostly a question of how you want to get in and where you want to end up once you are there.

Titan for an open rectangular bath

Titan has a rectangular stainless steel tank with no internal seat. That sounds like an absence, but it is the point: an open floor leaves you free to find your own position rather than having one decided for you.

It suits people who prefer to lower themselves directly into open water, to sit cross-legged, or to shift position during a session. The rectangular footprint also tends to sit more naturally against a wall, a fence line or decking than a round tank does.

Cedar cladding gives it a finished look in a garden or a wellness room, softening what would otherwise read as a steel box.

What to check before committing: the entry arrangement, and whether the people who will actually use it need a handhold or a step. An open bath with a high wall is a different proposition for a sixty-year-old than for an athlete, and that is worth testing honestly rather than optimistically.

Summit for seated immersion

Summit is Odyssey's tallest bath, with a stainless steel seat and a double step.

The seat defines the bathing position, which some people find reassuring and others find restrictive. If you want to sit upright and be submerged to the shoulders without working at it, a fixed seat does that reliably every time. The double step supports entry, which matters more as the tank gets taller.

Its listed volume is approximately 900 litres. Confirm the current figure against the specification for your configuration before preparing a base, because the supporting base, fill, drainage and treatment plan all follow from it and they deserve attention early in a project rather than late.

What a larger volume actually changes

This is the part that gets skipped, and it affects the day-to-day more than the shape does.

A larger vessel can accommodate more varied users, and it holds a more stable temperature once it is there. It also holds more water to cool in the first place, more water to treat, and more water to replace when a change is due.

Practically:

Cooling takes longer from a warm start, and the chiller specification has to match the volume rather than the range
Filtration sees more water per cycle, so the turnover calculation matters
Water changes are a bigger job, and a drain point you can actually reach stops being optional
Heating, if specified, has the same arithmetic working against it

None of this is an argument against a larger bath. It is an argument for discussing the exact chiller, insulation, filtration and cleaning access before ordering rather than after delivery.

In a commercial setting, start with numbers

If the bath is going into a gym, hotel, spa or recovery studio, the useful conversation starts with two figures: expected use per day, and the busiest hour.

Those numbers drive circulation, treatment, staffing and water replacement. A bath that serves six people a day and one that serves sixty are not the same installation, even when the tank is identical. Neither shape on its own guarantees safe or compliant operation, and a domestic specification asked to carry a commercial load will tell you so eventually.

A practical way to decide

Choose Titan if an open rectangular feel is what you want, if you like to find your own position, and if the footprint suits where it is going.

Choose Summit if a seated position and stepped entry are central to the experience, particularly where a defined, repeatable position matters.

If accessibility or a particular user group is a consideration, review the actual dimensions and a real entry method with the installation team before ordering. Sitting in one is worth more than any comparison table, this one included.

Where they sit in the range

For context: Forge is oval with a longer bathing position and 3 °C to 42 °C control. Atlas is round and compact with a built-in seat and two steps. Aegis is marine-grade stainless throughout with a slanted back and no timber to maintain.

Titan and Summit are the larger end of that range, and the choice between them is genuinely about posture rather than capability.

Next step: Compare Titan and Summit, and request a site-specific installation discussion before you commit to a base.

Titan or Summit: Choosing a Larger Cold Plunge