Caldera

$1,388.00 SGD

Caldera is a portable steam sauna built with reinforced drop-stitch fabric, offering efficient heat and comfort in 1-person and 4-person formats.

Deciding between sauna types? Read the Home Sauna Buyer’s Guide →

Size: 1 pax

1 pax 4 pax

Quantity:

Delivered, installed and commissioned by our own team. Included for mainland Singapore.

Serviced by us, in Singapore, for the life of the product. We also deliver worldwide, with delivery included in the price. Delivery times by country

In stock

Tundra Ice Bath Caldera

$1,388.00 SGD

Caldera

Caldera is a portable steam sauna built for effective heat therapy without permanent installation. Its high-pressure drop-stitch construction creates a rigid, stable structure that feels solid and secure, not inflatable.

The system heats quickly and maintains consistent steam for deep sweating and relaxation. Integrated seating benches support a comfortable, upright posture, making longer sessions effortless.

Lightweight and foldable, Caldera is easy to set up, store, or relocate. It’s suitable for both indoor use and sheltered outdoor spaces, adapting easily to different environments.

Available in 1-person and 4-person versions, Caldera delivers a practical, space-efficient steam experience for daily recovery and relaxation.

Key Benefits

Portable & Space-Flexible Design

Lightweight, foldable, and easy to move – ideal for homes, apartments, studios, or temporary setups.

Fast, Efficient Steam Heat

Designed to heat quickly and maintain consistent steam temperatures for effective sweating and deep relaxation.

Drop-Stitch Reinforced Structure

High-pressure drop-stitch construction delivers exceptional rigidity and long-term durability, far beyond standard inflatable saunas.

Integrated Comfort Benches

Intregrated seating benches create a stable, relaxed posture during steam sessions, improving comfort and making longer sessions effortless.

Indoor & Outdoor Ready

Built for versatile placement, allowing steam sessions indoors or outdoors depending on your lifestyle and space.

Available in 1-Person & 4-Person Sizes

Choose a compact solo setup or a shared sauna experience – same performance, scaled to your needs.

A portable steam sauna for flexible indoor and outdoor setups.

Steam, Anywhere.

What's Included

TUNDRA Caldera Steam Sauna Unit
SteamPod & Handheld Controller
Electric Pump
User Manual
Maintenance Kit
Accessories (Pipes, Herbal Box, etc.)

Delivery & Installation

Delivery & Setup: Fast & Flexible

Experience the TUNDRA difference in record time. Our inflatable series is designed for portability and speed, perfect for getting your cold therapy started immediately.

Global Delivery Timelines

We handle all logistics to get you plunging as fast as possible.

Singapore (Local): 1–2 Days
In-stock units ship immediately.
APAC: 5 to 9 days, air express
Europe and the UK: 5 to 9 days, air express
USA and Canada: 5 to 9 days, air express

Note: For all orders, our delivery partner will contact you directly to confirm access details and schedule your specific drop-off time.

Installation: Set Up in 15 Minutes

Your system arrives in compact, portable boxes. No tools required, everything you need is included.

Inflate the sauna using the provided electric pump (approx. 5 minutes).
Connect the SteamPod to the Sauna using the provided pipe.
Fill the SteamPod with water.
Plug the SteamPod into a standard power socket, set the temperature level, and relax.

Delivered worldwide. Delivery by air express is included in the price in every country we ship to, typically 5 to 9 days outside Singapore. We ship duties paid (DDP) wherever our freight partners can. Where import duties or taxes are payable on arrival, we confirm the amount with you in writing before your order ships.

Return to Yourself

How it feels

Enveloping warmth

Moist heat that surrounds you from head to toe.

A proper sweat

A thorough sweat in a 15 to 20 minute session.

Relaxed muscles

Warmth that eases tightness after training.

Your own retreat

A quiet, enclosed space to switch off at home.

How it feels describes experiences people commonly report. These are personal experiences, not scientifically established effects, and they vary from person to person.

TUNDRA products are wellness equipment, not medical devices. If you are pregnant or have a heart, circulatory or other medical condition, speak to your doctor first.

Product specification

Dimensions

The Caldera Sauna:

- 1 Pax: LxWxH: 100 x 100 x 180 cm
- 4 Pax: LxWxH: 160 x 160 x 200 cm

Water Capacity

3 L

Temperature Range

up to 55°C

Power Requirements

Voltage:
AC 220–240V (EU/UK/AU) or AC 100–127V (US)

Power Consumption:
1000 W

Current (Amps):
- EU/UK/AU: 4.5 A
- US: 9 A

Weight

33 KG

FAQ

Quick answers on delivery, installation and daily use. Can’t find yours? Our Singapore team is one email away.

Can I use it indoors and outdoors?

Yes, it’s fully outdoor-ready, the sauna is made from weatherproof materials.

Do you ship overseas?

Yes. We deliver worldwide from Singapore, and delivery to your door is included in the price shown for your country. We ship duties paid (DDP) wherever our freight partners can. Where import duties or taxes are payable on arrival, we confirm the amount with you in writing before your order ships. Delivery times by country are on tundra.health/pages/shipping.

How long does delivery take?

Global Delivery Timelines

We handle all logistics, customs clearance, and freight coordination. Timelines vary by region:

Singapore:
1–2 days.
APAC: 5-9 days
Air Express Shipping
Europe and the UK: 5-9 days
Air Express Shipping
USA and Canada: 5-9 days
Air Express Shipping

Delivered worldwide. Delivery by air express is included in the price in every country we ship to, typically 5 to 9 days outside Singapore. We ship duties paid (DDP) wherever our freight partners can. Where import duties or taxes are payable on arrival, we confirm the amount with you in writing before your order ships.

Does it require professional installation?

No professional setup is required. Caldera is designed for simple self-installation — inflate the sauna with the included pump, connect the SteamPod to the sauna, fill the SteamPod with water, plug it in, and you’re ready to use it within minutes.

Optional setup service is available if you prefer assistance.
Please note that setup services are not available in every country.

To check availability in your area, please contact support@tundra.health.

What if I didn't book a setup service?

Delivery is to the doorstep. The Caldera is lightweight and compact, allowing a single person to move it easily into position.

No professional setup is required. Caldera is designed for simple self-installation — inflate the sauna with the included pump, connect the SteamPod to the sauna, fill the SteamPod with water, plug it in, and you’re ready to use it within minutes.

Optional setup service is available if you prefer assistance.

Please note that setup services are not available in every country.

To check availability in your area, please contact support@tundra.health.

What power outlet do I need?

• Most markets (EU, SG, AU, UK): 220–240V

• North America & Japan: 100–127V

Your unit will be shipped with the correct voltage and plug type for your country.
Simply plug it into a normal household outlet – no special wiring required

Our customer support is available Monday to Friday, 9am–6pm SGT and Saturday, 9am-12pm SGT.Average answer time: within 24h

Email us

Contact TUNDRA

From product questions and services to bespoke projects and showroom visits, our team is ready to assist.
Share your enquiry below and we’ll help you find the right solution for your space, goals, and recovery routine.

Caldera

Key Benefits

Delivery & Setup: Fast & Flexible

Global Delivery Timelines

Installation: Set Up in 15 Minutes

Product specification

FAQ

Global Delivery Timelines

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