Tom will cover the basics of the old to new high efficiency, forced air heating systems. What changed from a 60% system to an 85% system to new 95+% systems with ECM motors? Static pressure control? How about those new controls? How do they work? What are potential defects? What should an inspector check and how do you report properly on heating systems? Pictures and illustrations will identify systems and defects. Proper documentation will be explained.*Florida and Connecticut students: Upon successful completion of modules, email certificate of completion to Michele George at micheleg@ashi.org. Credits will be filed electronically to FL and CT by ASHI.A certificate of completion will be available to you once you view the presentation in entirety and successfully complete the 20 question exam.  MD Approved