The Federal Institute for Materials Research and Testing (BAM) assesses standards for testing and rating the performance of hydronic heat pumps. To consider improvements in compressor technology and heat pump controllers BAM developed new a load-based test method (compensation method) for measuring energy efficiency. The compensation method aims at more representative performance data, ensures fair comparison of products and allows for independent testing by market surveillance authorities. Reports, publications and test guidelines published by BAM and its partners are listed on this website.
Test guideline
Revised draft guideline for hydronic heat pumps (including two-mass building model) (12/2023)
Two-mass building model
BAM reports
Proposal for the revision of the harmonised test standard EN 14825:2016 (2019)
BAM technical report on load-based testing of hydronic heat pumps - compensation method (2023)
Proof-of-concept on the compensation method - emulator approach (project website. see "Abschlussbericht")
Publications
Fixing Efficiency Values by Unfixing Compressor Speed: Dynamic Test Method for Heat Pumps (2019)
Dynamic test method for the determination of the seasonal performance of heat pumps (2020)