house temperature reads. Examples: Thermostat gets turned to 68 and 5 hours later, it says it is 63 in here. I can feel heat coming out of some vents, but not others, or else it felels like cooler air coming out. I just had a new circuit board put in three years ago, nothing is obsturcting the vents and I did check to make sure they were all open. Any suggestions? I am tired of freezing in the smaller of two bathrooms, and a couple of other rooms. HELP!!!