The thermostats in my home are all line voltage models (Honewell). If I want to install a programmable thermostat, I need to convert to a low voltage (24v) system because that’s what the programmable ones work on. What, exactly, do I need to do this–a step down transformer?–what else? I have done quite a bit of home wiring, but nothing on the heating system. Thanks for the help.
Ken Harris