When I put the thermostat to "Fan On" mode, it runs at the lower speed. Is there a way to ask RTH7600D to run the Heil furnace fan at higher speed without turning on the AC? I wanted to just mix the air insider the home without turning on the AC as my basement is at least around 10-15 degrees cooler than the upstairs.
On a side note, is there a better way to transfer the coolness from basement to upstairs?