Cabinet heater is mainly used in the hotel lobby, factory, workshop, greenhouses, office and other places which need high power refrigeration or heating, using centrifugal low noise fan, heat exchanger using steel tube with aluminum fin or copper pipe stringing aluninum fin. It can be divided to warm type and dual-purpose of warm and  cold type, with beautiful shape, low noise, small footprint, high-power refrigeration or heating , low installation cost, etc.