Elnur IEM (Integral Energy Manager) automatically adjusts charging to suit the climate and demands on a daily basis. It also manages the discharge to ensure heat is always available when needed. The HHR is fan assisted to aid and reduce warm up times and has a built in temperature sensor sensitive to 0.1°C. Ecombi HHR reduces energy costs and saves energy for times when it is specifically needed. · · · IEM technology · · Fan assisted heat distribution · · Weekly and daily programming · · Open window detection · · Manual reset · · Temperature sensor with calibration option