Just set the min temp and if it dips below it will activate the heat side and just plug a 60w lamp in and this will raise the temp keeping it active.Thanks That’s really helpful.
I wonder if you could use an ink bird to protect a fridge by having it turn off when it reaches temperatures so low it can't cope? (if in an outbuilding) if it’s too cold for the fridge to cope it’s probably a good temp for the beer keg anyway.