Jan 12, 2012 #1 Codes will not allow duct openings inside of a household connected garage, for apparent causes. I ran across one yesterday where it seems that the contractor is inserting an air handler inside a garage less than residing space. My initially reaction is -not permitted- having said https://preferred-content-languag09753.wikilinksnews.com/6030381/the_2_minute_rule_for_garage_ceiling_lift