Dren KTrain 1HP Hot and Cold Chiller
#1 in Over 1/2 HPFull review
A quiet 1 HP hot and cold chiller, if you can live without a stated warranty.
Amazon $1,199$1,199
The Dren KTrain 1HP Hot and Cold Chiller is the better cold plunge chiller overall, rated 3.9 to 3.1. The Dren KTrain 1HP Hot and Cold Chiller leads on noise. The Dren KTrain 1HP Hot and Cold Chiller costs $100.99 less ($1,199 vs $1,299.99).
Beyond Marina 1 HP Hot and Cold Chiller
#10 in Over 1/2 HPFull review
A hot and cold 1 HP unit with ozone and wifi, but other 1 HP units cool more for less.
Amazon $1,299.99$1,299.99
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 Dren KTrain 1HP Hot and Cold Chiller for noise (46 dBA vs 65 dBA).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every over 1/2 HP cold plunge chiller; a clear win is highlighted. How we rank explains each one.
| Factor weight | Dren KTrain 1HP Hot and Cold Chiller | Beyond Marina 1 HP Hot and Cold Chiller |
|---|---|---|
| Overall rating | 3.9/5 | 3.1/5 |
| Value 30% | 65 $1,199 per HP ($1,199, 1 HP) | 62 $1,300 per HP ($1,299.99, 1 HP) |
| Coldest 15% | 50 lowest temperature not published (neutral score used) | 50 lowest temperature not published (neutral score used) |
| Sanitation 10% | 85 filter and ozone | 85 filter and ozone |
| Heating 10% | 100 heats as well | 100 heats as well |
| Noise 10% | 95 46 dBA | 0 65 dBA |
| Warranty 25% | 50 warranty not published (neutral score used) | 0 1-year warranty |
Specifications
| Dren KTrain 1HP Hot and Cold Chiller | Beyond Marina 1 HP Hot and Cold Chiller | |
|---|---|---|
| Cooling | ||
| Compressor | 1 HP | 1 HP |
| Cooling capacity | 9,212 Btu/h | 8,206 Btu/h |
| Heats | Yes | Yes |
| Water and build | ||
| Filter | Yes | Yes |
| Sanitizer | Ozone | Ozone |
| App or wifi | Yes | Yes |
| Noise | 46 dBA | 65 dBA |
| Warranty | - | 1 year |