Good heating and air conditioning service technicians learn early in their career that proper air flow is critical to the proper operation of any air conditioner or furnace.

The Federal Government as part of the Recovery Plan has included a $1,500 Energy Tax Credit for energy saving features or equipment for your home that may be used in 2009 or 2010. 

I have been actively involved in the air conditioning and heating business for over 30 years and one particular non-scientific example of the importance of clean filters stands out.