Thermostat: add option to disable G wire during heat cycle

[FlyMeToTheMoon]

Check out this thread

Thermostat fan delay function

I would love to be able to make my fan turn on only after the furnace has been ignited. Right now with a normal set up the fan turns on right when the furnace turns on but the flame has not had a chance to light. With this happening it just pushes cold air for about 30-60 sec. the only work around I have found is to disconnect the G wire which allows for the fan to wait for the furnace to ignite but now I won’t be able to turn fan on independently if I want. [Mod Edit]: Title Modified to Enhan…

Turns out people with 5 wire setups with a dedicated C wire are having the same issues leading me to believe that it’s inherent to the firmware. Unfortunately running a C wire wouldn’t fix it. I should’ve posted this in bugs instead of wishlist.