... remote control,energy saving, 3.temperature displayer 4.used for room heating and hot water Model JLG18JLG20JLG24JLG30JLG40Rated heat inputkW1820243040Heating ... temperature display and multi-functional diagnostic function c. Suitable for different types of gas,rated gas pressure(Pa),LPG ... radiators, floor heating, fan coil 18kw to 40kw wall hung gas boiler for room heating and shower hot water