Report "C duct problem and this could be the solution to put more heat in the drafty areas of the unit. I looked on the web and read some of the reviews some were good and some we not so good. I need a 4 x 10 wall booster light colored. I prefer something very very quite if possible with a thermostat indicating the room temp inside the device I don't mind spending more for my expectation but I read the reviews and the choices are not much : Af410 Airflow breeze has it functioning problems too. Is there something out there better than this product that costs $59.95?"