Low GWP recirculating chillers from 500 W to 9 kW — from £1,350.
cTech supplies a wide range of high-quality recirculating water chillers built around Low GWP cryogenic gas refrigerants. Every unit meets international environmental standards while delivering efficient, reliable, long-life cooling for analytical, medical, laser and industrial applications — even in continuous 24/7 duty.


High-performance LabTech recirculating chillers — from precision benchtop units to compact peltier-based lightweight models.

PID auto-tune control for a stable ±0.1 °C setpoint, liquid circuit pressure gauge, liquid level indicator and a simple layout for easy servicing.

Top-quality gas compressor and condenser, Hot Gas Bypass technology to eliminate cycling, and a magnetic stainless steel liquid pump for long life and low noise. "S" Line available for quiet lab operation on 1.5 / 2.1 / 3.0 kW units.

Optional RS232 / RS485 / USB control interfaces, heavy-duty casters, drain tap and easily accessible water connections — connect and go.

Intuitive colour touchscreen with real-time temperature, pressure and flow information, cooling / heating runtime indicators and alarm status.

Peltier-based rather than compressor-driven: extremely light and compact, delivering 240 W at 25 °C over a 5 – 35 °C range with ±0.05 °C accuracy. Bright LCD display with temperature and low-liquid alarms.
All chillers use environmentally responsible Low GWP cryogenic gas as standard, reducing environmental impact while maintaining high cooling efficiency.
A broad capacity range to suit anything from a benchtop instrument to a full industrial process.
Stable set-point control for repeatable, sensitive processes.
Engineered for continuous operation with proven long-life reliability.
Bench, floor and rack-mount configurations to fit your laboratory or plant.
We help you select the right pump, flow rate, tank volume and control interface for the job.
We work with OEMs and research teams across the most demanding sectors — engineering thermal solutions that hold up in the field.
Full specifications, capacity curves and ordering information for the LabTech recirculating chiller range.
Every application is different. Share your specification and our engineers will recommend the right approach — from a standard product to a fully bespoke design.
Prefer to call? Reach our engineering team on 01252 851133