DAILY SAFETY TEST OUT PROCEDURES FOR AUDITORS AND CONTRACTORS This one day class is intended for people who don't necessarily need the full furnace and duct diagnostic classes but need to know enough about house and furnace interaction to make sure the house is not left in a dangerous condition when the Weatherization work is done. It will cover furnace basics such as the difference between return and combustion air, the dangers of open returns and "Worst Case" draft testing. We will also look at pressures that can develop due to duct repair. The manometers to check for dangerous zonal pressures will be explained. This class is essential for crew persons, auditors and anyone else who wants an answer to the question: "How do we properly test out the door?" Building Technician I and Building Analyst Certification components are included in this class.