Manufacturers publish catalogs that describe their various models. These catalogs typically cover the following items:

  1. Features and Benefits
  2. Selection Procedures
  3. Certification Listings
  4. Performance Data
  5. Physical Data and Dimensions
  6. Options and Accessories
  7. Installation, Controls, and Wiring Details
  8. Product Specifications

In addition to product catalogs, most manufacturers publish geothermal heat pump system manuals, and other application, service, installation, and training aids.