The 2009 Washington State Energy Code will require the performance testing of duct systems in new and existing homes. This means that a certified P.T.C.S. (Performance Testing of Comfort Systems) technician will have to test and certify that all duct systems meet the new energy codes.
This new standard has been created because extensive testing by the Washington State University Extension Energy Program has proven that the average forced air heating system loses 25% - 30% of its heat into unconditioned spaces or to the outdoors. Most of the houses built in Western Washington in the past 30 years have the furnace located either in the garage, attic, or crawlspace and unfortunately, the majority of the duct systems are located in these same spaces. Losing 25% of conditioned air simply means that most people have heating and cooling bills that are 25% higher than they should be. Heating the outside air is not the most efficient use of your money!
