Water source heat pump systems are one of the most efficient, environmentally-friendly systems, as ground water is stable the whole year around, its performance more stable and efficiency, special winter, so it has high efficiency  at low temperature conditions, it fit for cold climates and disctrict. The water source heat pumps can be applied to geothermal closed-circuit or open-well loops, or with a traditional boiler/tower loop system.

We produce water source heat pumps with heating and hot water or cooling and heating mode, it divided into two series as TWN and TWN-R series.