This webinar discusses Manual D, which provides users with design parameters and calculations for adequate duct air flow. Building department personnel,Mechanical, electrical, and plumbing engineers ductwork,Manual D,residential You may also like 55:28 Functional Testing for Lighting Controls 58:54 IECC 2021 vs ASHRAE 90 1 2019 57:55 Implementation Plan 1:15:51 2021 Residential Ventilation 1:00:25 Additional ZERH Program Requirements 1:06:14 Ventilation vs Infiltration vs Manual J 1:00:02 Reviewing Commercial Reports 1:00:29 Reviewing Residential Reports 1:09:26 2021 Residential Inspections «1…34567»Page 5 of 7