Hopefully it’s ok for me to enlist the collective intelligence of this community too
I recently did a deep audit of my Always On devices while writing up this guide.
One mystery I stumbled across was my HVAC system.
Let me first give a quick breakdown: I have a heat pump that is on its own circuit. Then, I have a separate HVAC circuit which has my air handler for 10kW electric resistive heat strips and my Ecobee.
The mystery: On that HVAC circuit, with nothing running at all, I isolated ~12W Always On. Based on Ecobee specs, that accounts for 2-3W. So, what’s the other 10? I’m guessing it’s something to do with the furnace control board but what exactly?
I’m not expecting to eek further savings here, just curious at this point.