Manual J, D, S
I am working on a major remodel of my 1950s house. The existing ducts are metal. I am looking for someone who can advise me on whether my existing ducts are properly sized and who can perform a Manual J and S since I will be replacing the air conditioner and furnace. I am outside Houston. I would prefer a 3rd party consultant over an HVAC company. I see some companies perform this service without a site visit.
Do I need a local company who can come to the house or can they perform these calculations accurately without visiting my house based on the floorplan?
Any recommendations of who performs this service in the Houston area?
GBA Detail Library
A collection of one thousand construction details organized by climate and house part