Renu Therapy Cold Stoic 3.0 scores highest overall, while Redwood Outdoors Denali All-In-One Cold Plunge is the most affordable. These products suit different buyers, so weigh the criteria that matter most for your setup rather than the headline score alone.
| 2 products | ![]() Redwood Outdoors Redwood Outdoors Denali All-In-One Cold Plunge | ![]() Renu Therapy Renu Therapy Cold Stoic 3.0 |
|---|---|---|
| Price | $7,999 | $11,399 |
| Overall score | 7.9 | 8.4 |
| Minimum temperature (°F) | 37 °F | 37 °F |
| Chiller (HP) | 1.5 HP (Balboa CLIM8ZONE II) | 0.5 HP |
| Capacity (people) | 1 person | 1 person |
| Water volume (gal) | 80 gal max | 95 gal |
| Filtration | 1 chiller filter cartridge included | Dual-stage filtration |
| Sanitation | Built-in UV sanitation | Ozone |
| Noise (dB) | 45 dB max | ~54 dB |
| Electrical | 120V, 60Hz, 12A max (standard outlet) | 110V / 20A |
Redwood Outdoors
Best for Backyard sauna owners wanting a matching wood-clad plunge
Renu Therapy
Best for Design-led buyers who want a long warranty
We may earn a commission when you purchase through links on our site. This does not influence our scoring methodology or recommendations.