
1-Person ThermoWood Cold Plunge Tub — SAK80914
This is a 1-person cold plunge tub with a Scandinavian ThermoWood exterior and a smooth fiberglass interior, handcrafted in Lithuania and delivered fully assembled. Built for homeowners who want a ready-to-use outdoor cold plunge, it requires no electricity — fill, chill, and use. Includes entry stairs and a 1-inch water drain valve. See product photos for full dimensions.
Why This Cold Plunge Tub
- Built for immediate use — arrives fully assembled; no on-site assembly required.
- Built without electricity — no electrical hookup or dedicated circuit needed; suitable for off-grid or remote installations.
- Built for outdoor durability — ThermoWood exterior resists moisture and dimensional change without chemical treatment. Fiberglass interior provides a smooth, hygienic surface.
- Built for stability — wooden base with impregnated and painted sole, reinforced by two stainless steel tightening bands.
- Built for easy maintenance — 1-inch water drain valve allows quick draining; stairs included for safe entry and exit.
Key Features
- Exterior material — Scandinavian ThermoWood (thermally modified wood), timber sourced from Finland
- ThermoWood process — wood is modified at elevated temperature using steam under atmospheric pressure, with no added chemicals. The process permanently reduces equilibrium moisture content, improves dimensional stability, and enhances resistance to biological degradation.
- Interior — premium fiberglass insert; smooth and hygienic
- Base — wooden with impregnated and painted sole; two stainless steel tightening bands
- Access — sturdy stairs included
- Drain — 1-inch water drain valve
- Power requirement — none; no electricity required
- Assembly — fully assembled on delivery
- Country of origin — Lithuania
Specifications
| Brand | SAKSBY |
| Model / SKU | SAK80914 |
| Capacity | 1 person |
| Dimensions | See product photos for full exterior and interior dimensions |
| Exterior material | ThermoWood (thermally modified wood, timber sourced from Finland) |
| Interior material | Fiberglass |
| Base | Wood with impregnated/painted sole; two stainless steel tightening bands |
| Drain | 1-inch water drain valve |
| Power requirement | None |
| Assembly | Fully assembled |
| Country of origin | Lithuania |
Installation and Setup
- Arrives fully assembled — no on-site assembly required
- No electrical connection needed — fill with water and chill to desired temperature
- Placement: suitable for outdoor use; verify your surface can support the filled weight of the tub before placement
Shipping and Returns
- Shipping: free standard shipping within the United States. See our Shipping Policy for delivery windows and full details.
- Returns: 30-day return window; item must be unused and in original packaging. Damage must be reported within 48 hours of delivery. A 25% restocking fee applies to approved returns. See our Return Policy for full details.
Common Questions
Does the SAK80914 cold plunge tub require electricity?
No. The SAK80914 ThermoWood cold plunge tub operates without electricity. Fill with water and chill to your desired temperature using ice or a separate chiller unit. No electrical hookup or dedicated circuit is required.
Does it arrive assembled?
Yes. The SAK80914 is handcrafted in Lithuania and arrives fully assembled. No on-site assembly is required.
What is the return policy?
Serene Lifestyle Co accepts returns within 30 days of delivery. The item must be unused and in its original packaging. Damage must be reported within 48 hours of delivery. A 25% restocking fee applies to approved returns. See our Return Policy for full details.
What is the interior surface material?
The SAK80914 features a premium fiberglass interior insert, providing a smooth and hygienic surface.
How do I drain the tub?
The SAK80914 includes a 1-inch water drain valve for quick and straightforward draining.
Safety and Electrical Notice
Installation must comply with local building codes. Serene Lifestyle Co recommends verifying that your surface and location are suitable before placement. Specifications are provided by the manufacturer; verify site requirements before purchase.
The information presented on this page is for general wellness and educational purposes only. Statements regarding products sold by Serene Lifestyle Co have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. Consult a qualified healthcare provider before beginning any new wellness routine, especially if you are pregnant, nursing, or have a pre-existing medical condition.






