Just FYI, the flow is coming from the thermostat housing and ends up at the water pump. So it looks like you have 218º at the thermostat housing, 210º at the core inlet, and 197º at the core outlet with a bypass temp of 177º. So your heater core should be nice and warm now. So if you still don't have heat I would say you have a blend door problem at this point. Did you confirm the blend door shaft is turning when you adjust the temperature from cold to hot?