luke warm heating. help!

[ady347]

Mk2 phase 1, turning knob to cold gives cold air, turn it to hot and its barely luke warm, not losing coolant, temp gauge sits at half all the time, no wet footwells, head gasket tested and fine. Any ideas??

 

[N4TH4N]

Possible thermostat?

 

[ady347]

Changed that but still the same. I noticed top rad hose is hot (too hot to hold) both hoses that go into heater matrix are warm (the same warmth) but not hot. Is that right?