At rated heat output and high-temperature regime (*)
At 30% of rated heat output and low-temperature regime (**)
Useful efficiency
At rated heat output and high-temperature regime (*)
At 30% of rated heat output and low-temperature regime (**)
Auxiliary electricity consumption
At full load
At part load
In Stand-by mode
Other parameters
Stand-by heat loss
Pilot flame energy consumption
Annual energy consumption
Sound power level, indoors
Emissions of nitrogen oxides
For combination heaters
Declared load profile
Water heating energy efficiency
Daily electricity consumption
Daily fuel consumption
Annual electricity consumption
Annual fuel consumption
(*) High-temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature at heater outlet.
(**) Low temperature means for condensing boilers 30 °C, for low-temperature boilers 37 °C and for other heaters 50 °C return temperature (at heater inlet).