Helpful links
Here are a collection of useful online resources about the design, manufacture and installation of HVAC ductwork.
HVAC related sites
AIRAH - Australian Institute Refrigeration, Air-conditioning and Heating
Industry Associations
Australian Green Development Forum
Airconditioning & Mechanical Contractors Association of Australia
American Society of Heating, Refrigeration & Air Conditioning Engineers
Green Building Council of Australia
Government sites
Australian Building Greenhouse Rating