A low-cost way to keep a small one-person tub cold with ozone included.
Amazon $496.95The Healcryo 0.5 HP Ozone Chiller and the SereneLife 1/2 HP Chiller System are evenly matched, rated 3.4 and 3.4. The Healcryo 0.5 HP Ozone Chiller leads on value, sanitation and coldest. The Healcryo 0.5 HP Ozone Chiller costs $386.04 less ($496.95 vs $882.99).
A basic 1/2 HP kit with pump and filter. Others at this price add ozone and wifi.
Amazon $882.99Prices 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 value ($994 per HP ($496.95, 1/2 HP) vs $1,766 per HP ($882.99, 1/2 HP)), sanitation (filter and ozone vs filter) and coldest (down to 38 °F vs down to 39.2 °F).
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 | SereneLife 1/2 HP Chiller System |
|---|---|---|
| Overall rating | 3.4/5 | 3.4/5 |
| Value 30% | 72 $994 per HP ($496.95, 1/2 HP) | 49 $1,766 per HP ($882.99, 1/2 HP) |
| Coldest 15% | 88 down to 38 °F | 72 down to 39.2 °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) | 50 noise rating not published (neutral score used) |
| Warranty 25% | 0 1-year warranty | 50 warranty not published (neutral score used) |
Specifications
| Healcryo 0.5 HP Ozone Chiller | SereneLife 1/2 HP Chiller System | |
|---|---|---|
| Cooling | ||
| Compressor | 1/2 HP | 1/2 HP |
| Cooling capacity | 4,000 Btu/h | - |
| Lowest temperature | 38 °F | 39.2 °F |
| Largest tub | 52 gal | 132 gal |
| Water and build | ||
| Filter | Yes | Yes |
| Sanitizer | Ozone | - |
| App or wifi | No | - |
| Voltage | 120 V | 120 V |
| Warranty | 1 year | - |
