Labeling of Installed Heating Appliances in Residential Buildings: An Energy Labeling Methodology for Improving Consumers’ Awareness

In the EU 28, installed heating appliance stock is quite old, with an actual replacement rate of 4%. This directly reflected in average efficiency systems, where around 60% rated energy class C or D (the lowest classes label scale). The European project HARP aims at raising consumers’ awareness planned their old and inefficient appliances more efficient renewable solutions. this direction, labeling methodology for has been developed to before introduction label. space water heaters, targeting two types users: end consumers professional users. validation considered about 4600 800 heaters built between 1972 2019. Three were tested laboratory, confirming reliability proposed methodology. expected impact defining increases current these from 4% 5%.