The SAK80914 is a fully assembled, 1-person cold plunge tub built for straightforward outdoor use. The exterior is crafted from Scandinavian ThermoWood® — a thermally modified timber known for its moisture resistance and dimensional stability — while the interior features a smooth, hygienic fiberglass liner. No electrical connection is required: fill, chill, and use. Handcrafted in Lithuania and shipped fully assembled, this tub is designed to integrate cleanly into a backyard, patio, or private wellness space.
Why Customers Choose This Cold Plunge Tub
- Arrives fully assembled — no on-site construction or tools required
- No electricity needed — operates as a passive cold water immersion tub
- Scandinavian ThermoWood® exterior resists moisture, warping, and decay
- Smooth fiberglass interior is easy to clean and maintain
- Sturdy access stairs and a 1-inch drain valve included for practical daily use
- Stainless steel tightening bands reinforce the structure for long-term stability
- Handcrafted in Lithuania with a natural wood aesthetic
- Free USA shipping with delivery in 5–10 business days
Product Highlights
Scandinavian ThermoWood® Exterior
The outer cladding is made from ThermoWood® — timber that has been heat-treated to improve its resistance to moisture absorption, biological decay, and dimensional movement. This makes it well-suited for permanent outdoor installation across varying climates.
Premium Fiberglass Interior
The interior liner is formed from fiberglass, providing a smooth, non-porous surface that is comfortable against the skin and straightforward to clean. The material does not absorb water or harbor bacteria the way untreated wood can.
No Electricity Required
This tub operates without any electrical connection. Fill it with water, add ice or a compatible chiller (sold separately), and it is ready to use. This makes it a simple, low-infrastructure option for most outdoor settings.
Reinforced Structural Base
The wooden base is impregnated and painted for moisture protection, and two stainless steel tightening bands wrap the exterior to maintain structural integrity over time. The design is intended to remain stable under regular use.
Included Access Stairs
Sturdy wooden stairs are included to allow safe, comfortable entry and exit. The stairs are designed to match the overall aesthetic of the tub and are built to support regular daily use.
1-Inch Drain Valve
A standard 1-inch drain valve is built into the tub for straightforward water drainage. This simplifies routine water changes and general maintenance without requiring additional tools or fittings.
Fully Assembled and Ready to Place
The tub ships fully assembled from Lithuania. Once delivered, it only needs to be positioned, filled, and chilled — no assembly steps are required on your end.
Specifications
| Model | SAK80914 |
| Capacity | 1 person |
| Exterior Material | Scandinavian ThermoWood® |
| Interior Material | Premium fiberglass |
| Base | Impregnated and painted wood with two stainless steel tightening bands |
| Drain | 1-inch water drain valve |
| Access | Included wooden stairs |
| Electrical Requirement | None |
| Assembly | Fully assembled |
| Origin | Handcrafted in Lithuania |
| Primary Use | Outdoor cold water immersion |
| Shipping | Free USA shipping; ships within 1–3 business days, delivers in 5–10 business days |
Ideal For
- Individuals looking to add a dedicated cold immersion station to their home or backyard
- Those who prefer a passive, no-electricity setup without chiller equipment
- Buyers who want a fully assembled unit with no on-site build required
- Properties with existing outdoor wellness areas, decks, or garden spaces
- Anyone seeking a durable, natural-wood aesthetic that holds up in outdoor conditions
Important Information
- Placement: Position the tub on a level, stable surface capable of supporting the weight of the filled tub and occupant. Avoid placing directly on grass or uneven ground without a suitable base.
- Water temperature: This tub does not include a built-in chilling system. Cold water temperatures are achieved by filling with cold water and/or adding ice. A compatible external chiller can be used if desired (sold separately).
- Drainage: Ensure the drain outlet has a clear path for water discharge. Do not drain onto surfaces where standing water may cause a hazard.
- Wood care: Periodically inspect the ThermoWood® exterior for surface wear. Light sanding and application of a suitable wood oil can help maintain appearance over time. Refer to the included care documentation.
- Safety: Always enter and exit using the provided stairs. Do not use the tub if you are pregnant, have a cardiovascular condition, or have been advised by a healthcare provider to avoid cold water immersion. Supervise children at all times near the tub.
- Water hygiene: Change the water regularly and follow appropriate water care practices to maintain hygiene. The fiberglass interior can be cleaned with mild, non-abrasive cleaners.
Frequently Asked Questions
Does this tub require electricity?
No. The SAK80914 operates without any electrical connection. It is a passive cold plunge tub — fill it with cold water and add ice as needed to reach your preferred temperature. If you want active chilling, a compatible external chiller unit can be connected separately (not included).
Does it arrive fully assembled?
Yes. The tub is handcrafted in Lithuania and ships fully assembled. No on-site construction is required. Once delivered, place it on a suitable surface, fill it with water, and it is ready to use.
What is ThermoWood® and how does it hold up outdoors?
ThermoWood® is timber that has been treated using a controlled high-temperature process — no chemicals are added. The process significantly improves the wood's resistance to moisture, biological decay, and dimensional changes caused by humidity and temperature variation. It is a well-established material for outdoor applications including saunas, tubs, and garden structures.
How do I drain the tub?
The tub includes a 1-inch water drain valve. Open the valve and allow the water to drain to a suitable discharge point. Ensure the drainage path is clear and that water will not pool in an area where it could create a slip or structural hazard.
What surface should I place the tub on?
The tub should be placed on a level, stable, load-bearing surface such as a concrete pad, paving slabs, or a reinforced deck. Avoid placing directly on soft ground or grass, as the weight of a filled tub can cause settling or instability over time.
How long does shipping take?
Orders are packed and shipped within 1–3 business days. Delivery to most US addresses takes 5–10 business days. Shipping is free within the contiguous United States.
How do I clean the interior?
The fiberglass interior can be wiped down with a mild, non-abrasive cleaner and rinsed thoroughly. Avoid harsh chemicals or abrasive scrubbing pads that could damage the surface. Change the water regularly to maintain hygiene.
The SAK80914 is a straightforward, well-built cold plunge tub that requires no electrical installation and arrives ready to use. If you're looking for a durable, natural-wood cold immersion option with minimal setup, this tub covers the essentials. Select your configuration above and place your order today — free USA shipping included.
This product is intended for general wellness and personal use. It is not a medical device and is not intended to diagnose, treat, cure, or prevent any health condition. Consult a qualified healthcare provider before use if you have any medical concerns or pre-existing conditions.