I attended a furnace tune up for Leighton in the Airdrie area, during my inspection I found the inducer motor to be at rated capacity, gas pressures slightly low, pressures switch failed once during test due to water build up in condensate trap, exhaust venting slope could be a little better. I have provided the customers with several options for air quality and improvements, they currently have extended warranty through the builder and will be bringing up and issues with them for necessary repairs.