What SCOP can you expect from a system that runs at 55C and 50C flow temperatures on the coldest days?

Hardware Heatpump
21

Thanks @PjH! Would the 25% x 0.6 = 0.15 bring us back into the same region? I wonder if there’s a chance we arrive at a similar result a different way here?

22

Hi Trystan, I dont think so. The winter months dominate the overall CoP and so a difference of about 0.5 in CoP due to defrosts will be strongly reflected in the overall year CoP.