Boyu · Chiller
C Series Chiller
- Tank size
- 50–600 L
Planted tanks and shrimp tanks in hot climates that regularly creep above safe temperatures.
3 models
SunSun · Chiller
SunSun HYH-D Aquarium Chiller
The smallest units in SunSun's HYH chiller range, with 250 to 650 W of cooling for tanks around 260 to 580 litres. They take 16 to 20 mm hose and use R134a refrigerant.
Updated
Will it suit my tank?
litres
Best for
Tanks in hot rooms or with cool-water species that climb above safe temperatures in summer.
Worth knowing
Chillers need a pump or canister to push water through and dump heat into the room, so give them ventilation.
What stands out
- 250, 450 or 650 W cooling
- For about 260 to 580 litres
- 16 to 20 mm connections
- R134a refrigerant
Models and specs
| Model | Tank size | Dimensions (L × W × H) | Cooling output | Rated current |
|---|---|---|---|---|
| HYH-0.125D-D | up to 260 L | 30.2 × 37.5 × 49 cm | 250 W | 1.1A |
| HYH-025D-D | up to 420 L | 30.2 × 37.5 × 49 cm | 450 W | 1.4A |
| HYH-0.5D-D | up to 580 L | 30.2 × 37.5 × 49 cm | 650 W | 1.9A |
- Brand
- SunSun
- Refrigerant
- R134a
- Connections
- 16 to 20 mm
- Bigger units
- HYH DR models cover 600 to 4,500 litres
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.
Compare with
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Boyu · Chiller
CW / LN Series Chiller
- Tank size
- 500–3000 L
Very large display tanks or multi-tank systems in warm climates.
4 models
Boyu · Chiller
LS Series Chiller
Keepers who want year-round temperature control from one box on a medium to large tank.
6 models
Eheim · Chiller
climacontrol+
- Tank size
- up to 2000 L
- Power
- 260–400 W
Big planted tanks in warm rooms or hot climates where summer temperatures push past 28 °C.
3 models
Frequently asked questions
Quick answers about the SunSun HYH-D Aquarium Chiller, drawn from its specs.
What size tank is the SunSun HYH-D Aquarium Chiller for?
The maker rates it by model: HYH-0.125D-D up to 260 L, HYH-025D-D up to 420 L, HYH-0.5D-D up to 580 L.
Who is the SunSun HYH-D Aquarium Chiller best for?
Tanks in hot rooms or with cool-water species that climb above safe temperatures in summer.
Is there anything to watch out for with the SunSun HYH-D Aquarium Chiller?
Chillers need a pump or canister to push water through and dump heat into the room, so give them ventilation.
What are the alternatives to the SunSun HYH-D Aquarium Chiller?
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.