Cold Plunge / Niflheim - Cold Plunge
Image pending verification
Idun Sauna
Niflheim - Cold Plunge
$3,200
Price checked September 10, 2026
Verified September 10, 2026Medium confidence data
Verified data confirms an included chiller and cooling to 37°F.
Heavy-duty stainless steel cold plunge with thermowood exterior cladding, built for year-round outdoor use. Positioned as the most intense/coldest plunge in Idun's collection.
Best For
- —Year-round cold exposure without relying on ice or ambient temperature
- —Setups where a 211-gallon fill is practical for water/electric access
Specifications
More from Idun Sauna →General
| Capacity | 211 gal |
|---|---|
| Min. temperature | 37°F |
| Heating capable | No |
| Cooling time | 300 min |
| Ozone sanitation | No |
| UV sanitation | No |
| Outdoor rated | Yes |
| Dimensions | Outside 183 x 76 x 69 cm; Inside 201 x 91 x 79 cm |
Electrical
| Chiller included | Yes |
|---|
Installation
| Drain required | No |
|---|---|
| Shipping | Price excl. delivery — delivery quoted separately per destination country. |
| Warranty | 2 years |
Space Requirements
Real Project Cost
Foundry Wellness estimate — not a manufacturer figure
Real Project Cost
- Product price
- $3,200
- Electrical work
- $200–$800
- Foundation / pad
- $0–$1,200
- Assembly / install labor
- $100–$500
Estimated installed range$3,500–$5,700
Calculated by Foundry Wellness from typical regional ranges for electrical, foundation and assembly work for this product category. This is an editorial estimate, not a quote — actual cost depends on your site, local labor rates and permitting.
Where to Buy
View on Idun Sauna’s site →
Foundry Wellness does not currently have a commercial relationship with Idun Sauna. See Work With Us for how that works.
Sources
- https://www.idunsauna.com/products/stainless-steel-cold-bath — manufacturer spec, verified September 10, 2026Manufacturer states '25°C → 3°C ≈ 5h cooling time', converted here to min_temp_f=37 (≈3°C) and cooling_time_minutes=300.