@drose, thanks for your input! Your post reminds me of this one, even though the fuel is different:
I have a native detection for the pump on my natural gas-powered boiler, and my natural gas-powered water heater is on a KP125. This gives me a some idea of daily usage, although it misses the kitchen range and the basement space heater. My natural gas service is billed monthly, so I can’t do the daily comparison that you did.
My boiler system has standby usage of 4 Watts, measured with a traveling HS-110. I believe my standby energy is consumed to power the thermostat. I’m curious what your system does in standby to use 60 Watts.