[Release] Secure SSR303 (Horstmann ASR-ZW) Boiler switch/relay

Not my code, just the default ST code ‘tweaked’. Reminds me I need to get my hands on another for the immersion :slight_smile:

I’ve got a couple of the STR321 thermostats which allow local control of the ASR-ZW. They work pretty well and mean the family can change the temp if needed (some will say that’s not a good thing).

Have a look at the link below if interested. All thanks to someone else writing some code: