What will happen if the thermostat or UTH go wrong/stops working?

[Charles8088]

Zilla and Jumpstart both fail wide open if they do fail. Meaning, the thermostat stops working but the heating unit does not. So, if the tstat fails the heat will spike.

Herpstats will shut the heat down if the tstat fails.

I didn't know that about the JumpStarts or HerpStat. Good to know. I don't have any backups currently installed. Just the HerpStat alarms if temps go out of whack. But, going to set up those Govees now when I get them.