... Pum -CE Certificate -High Efficiency&Muti-fuction LTWH Series High Quality Ground Source Heat Pump for Houses and Commerical UseHeat Pump ... can make free living hot water for demand as Villa, hotel, restaurant, factory, theater, stadium, residential quarter, textile, food ... ≤40Interface Dim.DN(mm)2525253232324040405050 LTWH Series High Quality Ground Source Heat Pump for Houses and Commerical Use