I have two thermostats in the first floor of my house, one for heat and
one for a/c. The one for the a/c is programmable, and low voltage ( or
so I have been told) the one for the heat is line voltage. I would like
to hook the heat up to the programmable thermostat. To make one
thermostat. What do I have to do to convert the line voltage to low
voltage? Someone told me about a relay, of which I have no clue, I also
saw an adapter in Home Depot, for what seems like just this type of
thing. Is it that easy or should the relay be installed, or both?