Yep I did this and then ran out of time and sold the kit at a huge loss

Recently I went through some pain with this myself. Had a full Heatmiser setup with wireless receivers in every room and 2 manifold controllers for our underfloor heating on two floors.

The devices ate batteries like nothing I’ve seen before and regularly dropped off the network and didn’t send call to heat signals properly, so I decided to switch out the thermostats for cheap ZigBee temperature sensors.

I then ordered a relay board from AliExpress with a baked in esp8266 cheap and flashed esphome onto it. These replaced my manifold controllers

After trial and error, I now have my heating system run by esphome and home assistant. It has been faultless! Will probably reinstall the Heatmiser kit if I sold the house though

Yeah pretty much most bars and restaurants will use a mixer gun for providing soft drinks. It’s usually carbonated water and it will inject syrup for coke, pepsi, sprite etc at regular intervals. The syrup is just a box from the drink company that they have hooked up to pipes out back

Thanks for this reply! I put off the professional install of panels as the ROI was just too far out. Self install did come up as I’m fairly competent but your points still highlight the problems. Sometimes the numbers just don’t work, even if you can do it cheap