The Problem
Heating and cooling systems are the biggest energy users in almost every building. HVAC refers to the equipment and distribution network (e.g.; ducts) used to create and distribute heating and cooling in a building. There are many different types of HVAC systems, including natural gas or electric boilers or furnaces, heat pumps, and window and stand alone heaters. Cooling systems include rooftop units, chillers, heat and cooling pumps, air conditioners and alternative cooling systems that help shift electricity use to off-peak periods, when rates are lower. | 
