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ENERGY LABELLING FOR ALL HEAT PUMPS
All heat pumps with an output of less than 70kW must display an energy label similar to those see on TVs, refrigerators and washing machines. The aim is to enable the consumer, to compare the energy efficiency of different products. G indicates the least efficient performance and A+++ the most efficient. This is all part of EU Regulations that set out to drastically lower our carbon emissions and energy consumption.
Heat pumps can display a number of different labels. They all have a product label which provides information about the energy efficiency class, power requirements and noise levels. These label also has a map that divides Europe into three different climate zones. A suitable power requirement is specified for each climate. The energy efficiency class displayed on the label is only based on average climate conditions, it is necessary to consult the product sheet in order to obtain correct information about how the product performs in cold climates.
One should note that the scale only goes up to A++ for space heating and A for domestic hot water.
All energy labelling for space heating is based on energy efficiency over an entire year. Heat pumps also have different energy labels depending on whether radiators or under floor heating are used.
Heat pumps that produce hot water normally belong to energy efficiency Class A. To achieve higher efficiency, they need to be combined with solar heating. The quantity of hot water will also be illustrated by a tap symbol indicating sizes (tap profiles) from 3XS to XXL.
Product labels can be supported with package labels either directly from the manufacturer or you, the installer. The package label shows the energy consumption of the entire heating system and also takes into account how the system is controlled, any external auxiliary boiler and if it is combined with solar heating. Since most heat pumps already have an integrated control system, many of them will have a system label from the manufacturer. If you add a solar collector and other systems, you can easilymake your own system label in NIBE DIM.
The efficiency that determines a product’s energy class is based on so-called primary energy. This means that an energy factor of 2.5 is used for products powered by electricity. A factor of 1 is used for products powered by oil or gas. The 2.5 factor for electrical energy is used throughout the European Union and is based on the average efficiency of electricity generation in Europe.
Despite this, heat pumps will end up right at the top of the energy labelling scale. This primary energy factor will make it much tougher for products like electric water heaters to achieve a top rating, as they rarely achieve higher than a class C rating, despite their excellent insulation.
Download NIBE installer guide to ErP, simple as 123.