Renu Therapy is a real, operating cold plunge maker that has sold online since at least 2019. The main finding is how little public record exists. I found no BBB profile, no Trustpilot profile, no recalls, and no failure reports for its two best-known models. Its warranty is one of the longest in the category for the tub, but only 1 year on the chiller.
I’m not issuing a verdict here. Below is the public record, checked against our Pre-Purchase Scam Checklist, so you can decide for yourself.
The record at a glance
| Check | What I found |
|---|---|
| Store domain | renutherapy.com. Registered October 2019. First seen by crawlers 2020. |
| Business listing | No BBB profile found. A third-party review site describes Renu as a Southern California workshop building plunges since 2017. |
| BBB complaints | None found. |
| Trustpilot | No profile found. Garage Gym Reviews reported finding five Google reviews, all 5-star. |
| Warranty | Chiller: 1 year, extendable to 5 years total for $299.99 if bought within 364 days of shipment. All other components on plastic-tub models: 5 years. Residential use only. Buyer pays shipping on replacement parts. |
| CPSC recalls | None found for Renu Therapy. |
| ContrastMap Chiller Reliability Index | Cold Stoic 3.0 and Cold Stoic 2.0: score 85 each (0 failure-relevant reports in 6 examined, low confidence). |
What a thin record means
A clean record and a thin record are not the same thing. Renu sells high-priced units, from about $7,200 to more than $11,000, in low volume. Fewer buyers means fewer public reviews and fewer complaints of any kind. Our Reliability Index found zero failure reports, but only six sources to examine per model. That is not enough to call the chiller reliable. It is enough to say I found no evidence of a pattern of failures.
How warranty repairs work
Renu’s process is unusual. Most repairs are done by the owner with parts Renu ships. If you can’t do the repair yourself, Renu pays up to $50 an hour, for up to 2 hours, toward an approved local technician. Renu may also replace the tub or ship it to the factory if an on-site repair isn’t possible. Ask whether you’re comfortable with that before you buy.
Before you buy
- Price the extended chiller warranty into your budget. The base chiller coverage is 1 year.
- Ask whether a local technician in your area has serviced Renu units before.
- Ask Renu for references from owners in your climate.
- Pay by credit card.
Compare all 14 brands: Cold Plunge Buyer Protection Guide
Method: BBB and Trustpilot searches by brand name and domain. Domain data from DataforSEO WHOIS. Warranty terms from renutherapy.com. Reliability data from the ContrastMap Chiller Reliability Index, collected August 21, 2026. All other data pulled October 13, 2026. This page reports public records and does not state that any company is or is not a scam.
Sources: Renu Therapy limited warranty. Garage Gym Reviews, Renu Therapy Cold Stoic review. LifespanVault, Renu Therapy review.
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