Inergize Spire Cold Plunge

Name: Inergize Spire Cold Plunge
Brand: Inergize
SKU: IH-SP-S01
Price: 5990.0 USD
Availability: InStock

by Inergize

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$5,990.00 - $7,990.00

$5,990.00

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Inergize Spire Cold Plunge

The Spire is sold in two setups and you pick one from the dropdown. With Chiller ships the tub, the steps, the insulated lid and the chiller unit that sets and holds the water temperature. Tub Only ships the same tub, the same steps and the same lid, with no chiller in the crate. A Tub Only Spire holds whatever water you put in it at whatever temperature you put it in at, and holds no temperature of its own. Every temperature, filtration, ozone and app-control figure on this page belongs to the With Chiller setup, and is labelled that way each time it appears.

The vessel is identical either way. A 316 marine-grade stainless interior sits inside a shell of sustainably sourced, wax-coated red cedar, with 2 in of bonded insulation on the steel surfaces. The seat is 12 in across, contoured, molded into the shell and angled back 10° from vertical, with 27 in of torso depth above it and 31 in of legroom below. Inergize publishes a fit range of 6'4" neck-deep and 7 ft chest-deep, puts capacity at 120 gallons, and calls the footprint roughly 5 ft. It arrives assembled, and Inergize puts setup at about thirty minutes with no tools.

Choose your setup

Two setups

With Chiller, or Tub Only

With Chiller

37°F

104°F hot mode. Tub Only holds no temperature.

Both setups

27 in deep

Torso depth, with 31 in of legroom

Both setups

120 gallons

Roughly a 5 ft footprint for the tub

Choose your setup: With Chiller or Tub Only Tub Only holds no temperature by itself 316 stainless interior, red cedar exterior, both setups Free crated curbside freight, contiguous US

Build

What Changes Between the Setups, and What Never Does

The chiller is the only difference between the two setups. Everything you sit in and step on is the same unit either way. Here is what Inergize publishes on each side of that line.

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Choose Your Setup

With Chiller adds the all-in-one chiller unit that stands beside the tub. Tub Only leaves it out and ships the tub, steps and lid alone, with no way to cool or heat the water. The tub, the steps and the lid are the same in both. If you want a plunge that reaches a set temperature, With Chiller is the setup that does it.

With Chiller or Tub Only

🌡

With Chiller: 37°F Cold, 104°F Hot

On the With Chiller setup, one unit runs both directions: 37°F in cold plunge mode and 104°F in hot tub mode, switchable on the same hardware. The chiller also carries 4-way filtration, an ozone system and app control. None of this applies to Tub Only, which has no chiller and holds no temperature.

With Chiller only

🪑

Seated Recline Geometry

A 12 in contoured seat molded into the shell, angled back 10° from vertical, with 27 in of torso depth above it and 31 in of legroom below. You sit upright with your back supported and your legs down. There is nothing to insert, inflate or position each time. This is the same in both setups.

10° recline, both setups

🔨

316 Stainless Inside, Red Cedar Outside

Water sits against 316 marine-grade stainless steel. Around it Inergize builds a shell of sustainably sourced, wax-coated red cedar, with 2 in of bonded insulation on the steel surfaces and a 3 in insulated lid on top. Inergize designs the Spire in Italy and builds it by hand. This is the same in both setups.

Both setups

What You Get

Eight Published Details, Each Marked to Its Setup

Six of these ship in both crates. Two of them require the chiller and are tagged for it. Nothing here describes what cold water does to a body.

🌿

Wax-coated red cedar over 316 stainless

Both setups

🧱

2 in bonded insulation on the steel

Both setups

🪑

12 in contoured seat at 10° recline

Both setups

📏

27 in torso depth, 31 in legroom

Both setups

🔼

Three cedar treads on a stainless frame

Both setups

🔒

3 in insulated lid, straps and handles

Both setups

🌡

37°F cold plunge, 104°F hot mode

With Chiller only

📱

4-way filtration, ozone and app control

With Chiller only

In Detail

Three Things Worth Looking At Closely

Seat and Fit

A 12 Inch Seat, Reclined 10 Degrees From Vertical

The Spire has a seat molded into the shell, 12 inches across and contoured, angled back 10° from vertical. You sit on it with your back against the wall and your legs extended down into the well. Inergize gives the two measurements that decide whether that geometry works for your body: 27 in of torso depth from the seat up, and 31 in of legroom below it. Those two figures set the fit range Inergize publishes, 6'4" neck-deep and 7 ft chest-deep. The seat, the depth and the legroom are the same on both setups, since the tub itself is one build.

Both setups: 12 in contoured seat, molded into the shell
Both setups: 10° recline from vertical, seat angled back into the wall
Both setups: 27 in torso depth measured from the seat
Both setups: 31 in legroom below the seat
Both setups: Inergize's published fit range, 6'4" neck-deep and 7 ft chest-deep
Both setups: capacity 120 gallons, per Inergize

12 in seat 10° recline 31 in legroom Both setups

Materials and Entry

Marine-Grade Stainless Wrapped in Red Cedar

Water sits against 316 marine-grade stainless steel, the alloy specified for marine hardware because of how it handles salt and chemistry. Around it Inergize builds a shell of sustainably sourced red cedar, wax-coated and assembled by hand, with 2 in of bonded insulation on the steel surfaces. The steps use the same two materials: three cedar treads on a 316 stainless frame, finished with anti-slip EVA grip mats, so you keep three points of contact from the ground outside the tub down to the seat. The lid closes the top with 3 in of insulated foam, dual Velcro secure straps, built-in handles and a 10 in windproof skirt over the rim. Inergize's dimension drawing puts the tub at 29 in wide, 61.56 in across including the steps, and 44 in tall. All of this ships in both setups.

Both setups: 316 marine-grade stainless steel interior
Both setups: sustainably sourced, wax-coated red cedar exterior
Both setups: 2 in bonded insulation on the steel surfaces
Both setups: three cedar treads on a 316 stainless frame with anti-slip EVA grip mats
Both setups: 3 in insulated foam lid, all-weather, dual Velcro straps, handles, 10 in windproof skirt
Both setups: 29 in wide, 61.56 in across with the steps, 44 in tall, from Inergize's dimension drawing
Designed in Italy and built by hand, per Inergize

316 stainless Red cedar Anti-slip EVA grips 3 in insulated lid

Choose Your Setup

One Tub, Two Crates: With Chiller or Tub Only

With Chiller is the setup that makes cold water. It adds an all-in-one chiller unit that stands beside the tub and runs the water to 37°F in cold plunge mode or 104°F in hot tub mode, with 4-way filtration, an ozone system and app control on the same unit. Inergize supplies it with as much as 6 ft of insulated reinforced braided hose and caster wheels, so one person can roll it into position on any side of the tub. Tub Only is the same tub, steps and lid with the chiller left out. It has no cooling, no heating, no filtration, no ozone and no app, and the water inside it sits at whatever temperature you fill it to. Choose Tub Only when you already know how you plan to handle the water yourself.

With Chiller ships: tub, steps, lid and the chiller unit
Tub Only ships: tub, steps and lid, with no chiller
With Chiller only: 37°F cold plunge mode and 104°F hot tub mode, one switchable unit
With Chiller only: 4-way filtration and an ozone system
With Chiller only: app control, per Inergize's own smart control section
With Chiller only: 6 ft of insulated reinforced braided hose and caster wheels for placement
With Chiller only: combined footprints from Inergize's two layout drawings, balanced roughly 76 in by 50 in and lateral roughly 97 in by 28 in
Tub Only: holds no temperature of its own

With Chiller: 37°F to 104°F With Chiller: 4-way filtration With Chiller: app controlled Tub Only: no chiller

Two Inergize Tubs

Spire, or the Inergize Cold Plunge Tub

Inergize builds these in two different shapes, and each one suits a different room. The Spire is the cedar-and-stainless seated build, sold here in two setups so you decide whether the chiller comes with it. The Inergize Cold Plunge Tub is the portable modular one, 30 in deep, with hot and cold function. Read what separates them and pick the shape that fits how you want to use it.

You're Here

Spire

Cedar over 316 stainless, seated recline and cedar steps. Choose it with or without the chiller.

Seated recline 27 in torso depth Two setups

Currently viewing

Inergize Cold Plunge Tub

The portable modular tub, 30 in deep, with hot and cold function.

Portable 30 in deep Hot and cold

Shop the Inergize Cold Plunge Tub

Questions

Frequently Asked Questions

The chiller, and nothing else. With Chiller ships the tub, the steps, the insulated lid and the chiller unit that sets and holds the water temperature. Tub Only ships the same tub, the same steps and the same lid, with no chiller. Cedar, 316 stainless, the 12 in seat, the 10° recline, the 27 in torso depth, the 31 in legroom and the 3 in lid are identical in both.

No. Tub Only holds no temperature of its own. It is an insulated vessel that keeps the water you put in it at whatever temperature you put it in at, and it has no cooling, no heating, no filtration, no ozone and no app. If you want a plunge that reaches and holds a set temperature, choose With Chiller. This is the single most common misunderstanding on this product, so please read it before you order.

On the With Chiller setup, Inergize publishes 37°F in cold plunge mode and 104°F in hot tub mode, from one switchable unit. That is the range of the equipment. We publish no recommended temperature, duration or frequency for using it, and neither figure applies to the Tub Only setup.

On the With Chiller setup the same unit carries 4-way filtration, an ozone system and app control. Inergize describes the filtration as keeping water clean for months; that is their claim and their wording. Inergize does not publish an ozone output figure we can quote, so we quote none. All three belong to the chiller, which means the Tub Only setup has none of them.

Nothing in the Tub Only crate prepares the water, and nothing in it can be switched on later to do so. If a chiller is in your plan at all, the straightforward route is to order the With Chiller setup up front. If you have a reason to start with the tub alone, contact us first and we will confirm current chiller availability with Inergize in writing before you place the order.

Inergize publishes a fit range of 6'4" neck-deep and 7 ft chest-deep. The measurements behind that are 27 in of torso depth above the seat and 31 in of legroom below it, on a 12 in contoured seat angled back 10° from vertical. If you are near either end of that range, measure your seated torso height against the 27 in figure before you order. The geometry is the same on both setups.

Through a three-step entry made of cedar treads on a 316 stainless steel frame, with anti-slip EVA grip mats on the treads. Inergize builds it so you keep three points of contact from the ground outside the tub the whole way down to the seat. The steps are included in both setups.

A 316 marine-grade stainless steel interior inside a shell of sustainably sourced, wax-coated red cedar, with 2 in of bonded insulation on the steel surfaces. The lid is 3 in of insulated foam, rated all-weather, secured with dual Velcro straps, carrying built-in handles and a 10 in windproof skirt that drops over the rim. Inergize designs the Spire in Italy and builds it by hand. Both setups get all of it.

Inergize publishes 120 gallons, and that figure applies to both setups since the tub is one build. If floor loading matters where you are placing it, work from 120 gallons of water plus the weight of the tub and ask us for the shipping weight before you commit to a location.

The tub itself is roughly a 5 ft footprint, and Inergize's dimension drawing reads 29 in wide, 61.56 in across including the steps, and 44 in tall. On the With Chiller setup you also have to place the chiller, and Inergize's two layout drawings give a balanced arrangement of roughly 76 in by 50 in and a lateral arrangement of roughly 97 in by 28 in. The chiller connects on as much as 6 ft of hose and rolls on casters, so either side of the tub works.

Inergize rates the Spire for indoor and outdoor use. The cedar is wax-coated, the interior and the step frame are 316 marine-grade stainless, and the lid is all-weather with the windproof skirt. If you are placing it outside, talk to us about siting, drainage and, on the With Chiller setup, where the power reaches, before delivery day.

It arrives assembled. Inergize puts setup at about thirty minutes with no tools. On the With Chiller setup that covers positioning the tub and steps, connecting the chiller hoses, filling from a garden hose and plugging in. On Tub Only there are no hoses and no power, so you are positioning the tub, setting the steps and filling it.

As crated curbside freight, free within the contiguous US, scheduled with you and dropped at the curb of the address on your order. Inergize is explicit that moving the tank off the pallet and to its final location on the property is the customer's responsibility. Plan for more than one person, a clear route and something to roll it on, and measure gates, doorways and turns against the 29 in width first.

Yes. Talk with a qualified health professional about cold-water immersion before you begin, and follow their guidance on how you use it. We sell the equipment and leave that advice to them.

Capacity: 120 gallons
Torso depth: 27 in
Legroom: 31 in
Seat: 12 in wide, contoured, 10 degrees of recline from vertical
Fits users: Up to 6 ft 4 in neck-deep, and up to 7 ft chest-deep
Tub footprint: Roughly 5 ft
Tub dimensions: 29 in wide, 61.56 in across including the steps, 44 in tall, per Inergize's dimension drawing
Footprint with the chiller, balanced layout: Roughly 76 in by 50 in, per Inergize's layout drawing
Footprint with the chiller, lateral layout: Roughly 97 in by 28 in, per Inergize's layout drawing
Wall insulation: 2 in
Lid insulation: 3 in
Interior material: 316 marine-grade stainless steel
Exterior material: Wax-coated red cedar
Temperature range, With Chiller only: 37 F to 104 F
Temperature, Tub Only: None. The tub holds no temperature without a chiller
Shipping: Crated curbside freight, free within the contiguous US. The customer moves it off the pallet and into position
Warranty: One year from Inergize on the tub, chiller and electronics, serviced through their Los Angeles repair centre, with most issues resolved in five to seven business days

Two setups: With Chiller ships the tub, steps, lid and the all-in-one chiller. Tub Only ships the tub, steps and lid, and holds no temperature of its own
Seat, both setups: A 12 in contoured seat moulded into the shell, angled back 10 degrees from vertical
Interior, both setups: 316 marine-grade stainless steel
Cladding, both setups: Sustainably sourced wax-coated red cedar
Insulation, both setups: 2 in of bonded insulation on the steel surfaces
Lid, both setups: 3 in insulated foam with dual Velcro straps, built-in handles and a 10 in windproof skirt
Entry, both setups: Three cedar treads on a 316 stainless frame with anti-slip EVA grip mats, three points of contact from the ground to the seat
Temperature, With Chiller only: 37 F in cold plunge mode, up to 104 F in hot tub mode, switchable on one unit
Water care, With Chiller only: 4-way filtration and an ozone system. Inergize does not publish an ozone output figure
Control, With Chiller only: App controlled
Chiller placement, With Chiller only: Up to 6 ft of insulated reinforced braided hose, on caster wheels so it can sit on any side of the tub
Placement, both setups: Rated by Inergize for indoor and outdoor use
Assembly, both setups: Arrives assembled. Inergize puts setup at about 30 minutes with no tools

With Chiller setup: Spire tub, three-step cedar and stainless entry, 3 in insulated lid, and the all-in-one chiller with insulated braided hose
Tub Only setup: Spire tub, three-step cedar and stainless entry, and the 3 in insulated lid
Not included with Tub Only: The chiller, its hose and its caster wheels. Without a chiller the tub holds no temperature
Not included with either setup: Inergize's add-on maintenance kit, hose insulation set and headrest are sold separately