Healcryo 0.5 HP Ozone Chiller
#4 in Up to 1/2 HPFull review
A low-cost way to keep a small one-person tub cold with ozone included.
Amazon $496.95$496.95
The Healcryo 0.5 HP Ozone Chiller is the better cold plunge chiller overall, rated 3.4 to 3.3. The Healcryo 0.5 HP Ozone Chiller leads on coldest and sanitation. The Fox Plunge 1/2HP Cold Plunge Chiller costs $47 less ($449.95 vs $496.95).
Fox Plunge 1/2HP Cold Plunge Chiller
#6 in Up to 1/2 HPFull review
A cheap, quiet 1/2 HP kit for a large inflatable tub where 41 F is cold enough.
Amazon $449.95$449.95
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Healcryo 0.5 HP Ozone Chiller for coldest (down to 38 °F vs down to 41 °F) and sanitation (filter and ozone vs filter).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every up to 1/2 HP cold plunge chiller; a clear win is highlighted. How we rank explains each one.
| Factor weight | Healcryo 0.5 HP Ozone Chiller | Fox Plunge 1/2HP Cold Plunge Chiller |
|---|---|---|
| Overall rating | 3.4/5 | 3.3/5 |
| Value 30% | 72 $994 per HP ($496.95, 1/2 HP) | 76 $900 per HP ($449.95, 1/2 HP) |
| Coldest 15% | 88 down to 38 °F | 50 down to 41 °F |
| Sanitation 10% | 85 filter and ozone | 50 filter |
| Heating 10% | 50 heating not stated (neutral score used) | 50 heating not stated (neutral score used) |
| Noise 10% | 50 noise rating not published (neutral score used) | 100 40 dBA |
| Warranty 25% | 0 1-year warranty | 0 1-year warranty |
Specifications
| Healcryo 0.5 HP Ozone Chiller | Fox Plunge 1/2HP Cold Plunge Chiller | |
|---|---|---|
| Cooling | ||
| Compressor | 1/2 HP | 1/2 HP |
| Cooling capacity | 4,000 Btu/h | - |
| Lowest temperature | 38 °F | 41 °F |
| Largest tub | 52 gal | 132 gal |
| Water and build | ||
| Filter | Yes | Yes |
| Sanitizer | Ozone | - |
| App or wifi | No | - |
| Voltage | 120 V | - |
| Noise | - | 40 dBA |
| Warranty | 1 year | 1 year |