| Air Movement and Control Association: For manufacturers of air system equipment including fans, louvers, dampers, air curtains, airflow measurement stations, and acoustic attenuators. Publications, membership, certified ratings program and seminars. | |
| Chartered Institution of Building Services Engineers (CIBSE): UK-based institution for building heating, ventilation and air conditioning. | |
| Heat Pipe Technology, Inc.: Information about heat pipes and their use in dehumidification and heat recovery. Also describes company products. | |
| Heating, Ventilation, Air Conditioning Documents: A collection of documents in PDF format about building design and related themes. | |
| Hemmes Energietechniek: Offers a patented ventilation system with dehumidification of fresh air to reach humidity and (in)direct evaporative cooling to reach temperature. Dry air for pool and spa with heatpump. | |
| HPAC Engineering: Trade journal for heating, piping and air conditioning. With archive of all feature articles dating back to 1992 (download on purchase). | |
| HVAC Training: Offer videotapes on HVAC and other construction trades. We also offer CDROMS, books and manuals on HVAC, Electrical, Appliance Service and Plumbing. | |
| International Centre for Indoor Environment and Energy: Based at Technical University of Denmark. Reports on research focusing on the effect of the indoor environment on humans, mainly thermal comfort and air quality. | |
| Lars Josefsson: Steam in a Computerized World: Information for technicians and practicing engineers using marine boilers, and heavy fuel oil burners. Includes data tables and shareware programs for heavy fuel oil properties calculations. | |
| Numerical Modeling of Cryocoolers: A site on the theory and design of Cryocoolers, Stirling machines and Pulse Tubes. | |
| The HVAC Tool Box: Tools and basic information for engineering HVAC systems. Includes dimensions, materials, standards and system configurations. |
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