Boyu · Chiller
C Series Chiller
- Tank size
- 50–600 L
Planted tanks and shrimp tanks in hot climates that regularly creep above safe temperatures.

Eheim · Chiller
climacontrol+ is an inline unit that both chills and heats, controlled over WiFi. It sits on the return line after your canister, holds a set temperature anywhere from 5 to 35 °C and e-mails you if things go wrong.
Updated
Big planted tanks in warm rooms or hot climates where summer temperatures push past 28 °C.
It is expensive, needs 500 to 800 L/h of clean filtered water through it and wants 5 cm of clear space around it for airflow.
| Model | Tank size | Power | Heater | Noise (80 cm, cooling) | Dimensions |
|---|---|---|---|---|---|
| S | up to 500 L | 260 W | 300 W | 47 to 50 dB | 31 x 31 x 44.7 cm |
| M | up to 1,000 L | 300 W | 300 W | 50 to 53 dB | 31 x 31 x 48.9 cm |
| L | up to 2,000 L | 400 W | 300 W | 51 to 54 dB | 31 x 31 x 53.1 cm |
Figures from the maker's published specifications. Makers revise products, so check the current figures before buying. Photos supplied by the brand or its distributor.
Boyu · Chiller
Planted tanks and shrimp tanks in hot climates that regularly creep above safe temperatures.
Boyu · Chiller
Very large display tanks or multi-tank systems in warm climates.
Boyu · Chiller
Keepers who want year-round temperature control from one box on a medium to large tank.
SunSun · Chiller
Tanks in hot rooms or with cool-water species that climb above safe temperatures in summer.
Quick answers about the Eheim climacontrol+, drawn from its specs.
The maker rates it by model: S up to 500 L, M up to 1,000 L, L up to 2,000 L.
Big planted tanks in warm rooms or hot climates where summer temperatures push past 28 °C.
It is expensive, needs 500 to 800 L/h of clean filtered water through it and wants 5 cm of clear space around it for airflow.
Other cooling worth comparing: Boyu C Series Chiller, Boyu CW / LN Series Chiller, Boyu LS Series Chiller. Add any of them to the compare table to see the specs side by side.