A powerful hot and cold unit for a large tub, with ozone and app control. The short warranty in the manual is the catch.
SaunaSpa $2,624.25
A bare 1 HP chiller for a DIY build with your own pump and filter.
- 1 HPSize
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
- Titanium evaporator stands up to salts and chlorine
- Boost mode for faster pull-down
- A 1 HP compressor for big tubs and hot rooms
- Needs a separate pump, hoses and filter
- No ozone, UV or app
- Cooling capacity and lowest temperature not on the listing
The Active Aqua Chiller with Boost family
Every Active Aqua Chiller with Boost model we rank, smallest first. Ratings compare each against its own size.
| Model | Size | Rating | Price |
|---|---|---|---|
| Active Aqua Chiller with Boost 1/2 HP | 1/2 HP | 2.8/5 | $817.99 |
| Active Aqua Chiller with Boost 1 HP (this one) | 1 HP | 3.0/5 | $1,159 |
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Model number | AACH100HP |
|---|---|
| Cooling | |
| Compressor | 1 HP |
| Water and build | |
| Warranty | 1 year |
Alternatives in this size
A hot and cold 1 HP unit with ozone and wifi, but other 1 HP units cool more for less.
Amazon $1,299.99An upgrade or replacement chiller for owners of Plunge tubs who want app control and ozone. Buyers with other tubs pay a lot for the name.
Plunge $3,990Compare
Compare the Active Aqua Chiller with Boost 1 HP with any other cold plunge chiller →
More from Active Aqua: every Active Aqua product ranked.