Viessmann launches 1234ze heat pump

Viessmann is to introduce a commercial/industrial heat pump using the low GWP HFO 1234ze. The Vitocal 350-HT, launched this week at ISH, is said to be capable of providing high flow temperatures up to 90C. The brine/water heat pump can also use heat sources such as waste heat from production processes up to a temperature of 45C.