1.element design,fast heating, 2.remote control,energy saving, 3.temperature displayer 4.used for heating and hot water Model JLG18JLG20JLG24JLG30JLG40Rated heat inputkW1820243040Heating efficiency%90%90%90%90%90%Rated hot water production t=25kL/min910121520Rated heat outputkW16.51821.62736Expansion tank capacityL668814Heating area referencem2100120150230350Net weight/Gross weightkg34/3634/3635/ ...