A little nippy out there tonight.
Getting cooler in the house too, but getting ready for bed so heat is low.
Living Room: 16.75°C (=)
Hallway: 20.375°C (=)
Server Room: 19.5°C (-)
HVAC Return: 16.75°C (=)
HVAC Supply: 17.3125°C (=)
Outside: -20.125°C (=)
Delta Temp: 0.5625°C
The outdoor sensor is right on the house, so think it gets radiating heat through the cable and the house. I need to move it further outside some time.
Actually 19 in the room I'm in now, don't have a dedicated sensor for each room but have a digital thermometer.