1. Indication by labelling and standard product information of the consumption of energy and other resources by energy-related products;DIRECTIVE 2010/30/EU;Official Journal of the European Union,2010
2. Commission delegated regulation (EU) no 626/2011;Regulation N. 626/2011;Official Journal of the European Union,2011
3. Commission delegated regulation (EU) no 811/2013;Regulation N. 811/2013;Official Journal of the European Union,2013
4. Heating Systems in Buildings – Method for Calculation of System Energy Requirements and System Efficiencies – Part 4-2: Space Heating Generation Systems, Heat Pump Systems;EN 15316-4-2,2008
5. IEA HPP Annex 28 – standardised testing and seasonal performance calculation for multifunctional heat pump systems;Wemhoener;Applied Thermal Engineering,2007