Various types of connectors are used in home appliances and air-conditioning systems to create reliable contacts between different parts of electric circuits. In recent years, the number and types of connectors have multiplied as advanced sensors, controls, and communication/networking capabilities are incorporated into more intelligent appliances.

HVAC products and services offered to the consumer come with little to no room for revamping. As the cost of energy continues to rise, manufacturers have come under pressure to meet production goals, such as reducing energy usage, maintaining occupant comfort, and sustaining high levels of energy savings throughout the year. 

In an increasingly connected world with the introduction of machine-to-machine (M2M) communications, technologies such as Bluetooth, ZigBee, Z-wave, and Wi-Fi have opened up wireless prototyping opportunities not only for major corporations but small businesses and hobbyists.