I have an Amana dual fuel heating system ( heatpump with nat. gas aux. heat ) My question is about the Variable speed blower. In the heatpump mode is the blower running at AC CFM's? Does the main control board recognize it as being in the heating mode and adjust the speed to the same speed as it would be using the auxillary heat? Would it be advisable to change the dip switches to a lower cfm setting to get a warmer heat? It sounds like a 767 taking off all the time, it's set at 1200 cfm on cooling.