Return Air Home › Forums › Public Discussion › Return Air This topic has 2 replies, 2 voices, and was last updated 8 years, 8 months ago by Ron Schuett. Viewing 3 posts - 1 through 3 (of 3 total) Author Posts 04-12-14 at 12:17 PM #2496 GuestGuest Is anyone requiring a return air duct to be installed in all room that have a door. This is for new single family homes? 07-21-14 at 12:17 PM #2497 GuestGuest no 09-7-14 at 10:52 PM #2802 Ron SchuettModerator No Author Posts Viewing 3 posts - 1 through 3 (of 3 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In