OK, I have the furnace template (with A/C) running a one zone/one space model. The electrical use chart shows the same amount of fan energy consumption each month, meaning it is on all the time, correct? The fan should receive information about the operation of the gas burner and turn off when the heating demand is satisfied. I am also getting large (most days of the year) unmet hours which may be affecting this situation. Any ideas on how to correct this issue? Thanks.