Might start by looking here.
http://icemeister.net/aop_map.html
The duct system in my old house needs some improvement. All of the furnace and AC install guys that have been out to give quotes for high efficiency furnace have not been interested in the job of improving airflow.
Where is a good place to find someone that specializes in duct work or at least interested in the job? 90% of the ducts are in a fully exposed basement. Even suggestions for appropriate search terms would be helpful.
Thank you
Might start by looking here.
http://icemeister.net/aop_map.html
Where are you located?
An answer without a question is meaningless.
Information without understanding is useless.
You can lead a horse to water............
http://www.mohomeenergyaudits.com
http://hvac-talk.com/vbb/member.php?35374-udarrell
Write an e-mail to udarrell. See his address in his HVAC Talk profile.
Designer Dan __ It's Not Rocket Science, But It is SCIENCE with Some Art. _ _ KEEP IT SIMPLE & SINCERE ___ __ www.mysimplifiedhvac.com ___ __ Define the Building Envelope & Perform a Detailed Load Calc: It's ALL About Windows & Make-up Air Requirements. Know Your Equipment Capabilities
He is one of the most knowledgeable techs on this site
America; first we fight for our freedom,
then we make laws to take it away.
-Alfred E Newman
Unfortunately his profile email is out of date and PM is not available to me.
Any designer with Wrightsoft or comparable software can draw a specification that you can let out to any competent Tinner. We do it all the time for radiant floors, walls and ceilings and occasionally a manual "D" when no one else will do it.
Most HVAC or hydronic contractors are tradesman and depend on the local wholesaler (equipment distributor) to do the math for them. The notable exception is the odd commercial mechanical contractor that does some residential work.
What sort of airflow problem do you have?
Unfortunately, that's typical anymore. HVAC sales (anymore) is like buying a car. I think most (here) would agree that the salesman knows (or cares to know) anything about improving airflow.
The money (commission) is in the equipment. To much time, and little reward, for doing the job correctly.