A heat pump at -6C? Are you sure it was operating as a heat pump or did it fall back on resistance heating? Also split units are rather ugly and with older hom

A heat pump at -6C? Are you sure it was operating as a heat pump or did it fall back on resistance heating? Also split units are rather ugly and with older homes you ruin the look. Government hot water heating with city water is much better as it doesn't affect how the street or homes look like.