United States Air Force | Royal Air Force | United States Army Air Forces | Royal Canadian Air Force | Indian Air Force | United States Air Force Academy | Special Air Service | Fleet Air Arm | National Air and Space Museum | Royal Australian Air Force | open source | Strategic Air Command | Delta Air Lines | Air Canada | Israeli Air Force | International Air Transport Association | Air Training Command | United States Army Air Corps | French Air Force | Air National Guard | Edwards Air Force Base | Air Education and Training Command | Air France | Canned Heat | Royal Naval Air Service | First Air Force | South African Air Force | Wright-Patterson Air Force Base | Air Ministry | Wacken Open Air |
These collections include models for solar thermal collectors (flat plate, vacuum tube and uncovered), heat pumps (air-source, ground source / brine source), ground heat exchange (vertical boreholes as well as horizontal collectors) and heat storage (sensible and latent).