boiler to heat pump conversion, data

hot_rod

is starting to flow in from actual installs. As expected low temperature heat emitters are critical.

Another point from following 3 installations is the actual SWT is lower than the load calcs and designs indicate.
As many suspect the fudge factor in those programs and calculations may have us over sizing and supplying warmer SWT then actually required. Even better for HP performance.


https://www.greenbuildingadvisor.com/article/air-to-water-heat-pump-retrofit