Like most houses in the UK, I have “wet radiant heating”. If you have radiators on your walls or an underfloor heating system that uses pipes, chances are you do too. There are several commercial systems for upgrading these to smart heating including the Google Nest (you’ll also need the Heat Link), Hive, and Tado. Out of the three, only Tado can control each radiator individually, though all are rather expensive at ~£200 ($256) each.
As a second wave of winter approaches the country, I set out to build my own automated heating system for a fraction of the cost. This is obviously customised to my particular setup, though you can easily add more or less to suit yours.
Caution. This project involves mains electricity which can kill you. If you have any doubts as to what you’re doing, stop and contact a qualified electrician. I can guarantee that they will be happy to help you avoid getting injured.
Caution. Many heating systems involve gas boilers. Faulty gas systems can, and will, kill you and others. If you are not formally qualified do deal with these systems (i.e. CORGI registered), do not attempt any alterations to the gas side of your system. Stop and contact a qualified plumber or gas technician who will be happy to help.
Continue reading Upgrading Radiant Heating with Home Assistant