Hooking up honeywell thermostat too fuel oil fur and central air?

Question:

Answers:
Hooks up the same as any other thermostat. Assuming that you already have central air conditioning. Always turn off the power to your furnace before messing with the wiring. Digital thermostats will have a swtich for either fuel or electric heat, so be sure to have that in the fuel mode. Write down which colors go to which terminals and rehook accordingly.