_{Image source:   BRS Heat Pumps Ltd, Technical Report, p.1 (brsheatpumps.co.uk)}

The technical report on the YORK YKF05CNC heat pump, conducted within the Energy House 2.0 climate laboratory at the University of Salford, provides a detailed assessment of the thermal and energy performance of this technology in a simulated residential environment.

The test dwelling, built with sustainability criteria and equipped with a low-profile underfloor heating system, was subjected to trials under different heating patterns (constant and Standard Assessment Procedure - SAP) and external temperatures of 5° C, -5° C, and -10° C. The study measured key parameters such as the Coefficient of Performance (COP), the System Energy Efficiency Indicator (SEEI), and running costs, offering valuable data for the design of efficient thermal solutions in cold climates.

The results show that the heat pump successfully maintained the target indoor temperature of 21° C across all scenarios, with particularly strong performance under the SAP pattern at 5° C (COP = 3.8; SEEI = 2.20   K/kWh). The report highlights the importance of incorporating setback temperatures during SAP off-periods to enhance the system’s responsiveness. These findings reinforce the role of heat pumps as a viable solution for decarbonising the residential building stock, provided their operating conditions are optimised and aligned with real-world usage profiles.