All in one heat pump combined HVAC Function: ventilation,heating,cooling,hot warter Material: plastic with epoxy paint Heating capacity : 4.5KW COP 4.2 Size:100/150/200/250/300L Certification: CE,EMC,CCC,ISO9001. Shipping Dimensions:790/790/1850mm Net weight: 86KG Shipping Weight: 95KG.