HVAC contractors and technicians have a new generation of support and tools in computer software. There is software that helps diagnose and troubleshoot heating and cooling problems. Other computer tools assist in home energy audits with the latest diagnostic tools.
If you sell HVAC equipment, look for software that shows homeowners how much money they can save in energy costs by investing in new heating and cooling appliances and devices.
There also are computer tools that show homeowners their choices in air-conditioning and heating equipment without visiting a showroom. Just bring your laptop or printouts. Some programs calculate heating and cooling costs monthly and yearly for residential and commercial buildings. They also simulate working cooling and heating systems.