Overnight air temps/heating activity

see photo notes for more. all temps in Fahrenheit.

 

All of this done in the name of science and not having a $2000 duke energy bill for the first three months like last year!

 

Graphed with Zabbix, Recorded with Digitemp, Measured on Dallas DS18B20 sensors connected to a DS9097U 1-wire to RS-232 serial bridge.

Done