This series of zone controls manages circulators and boilers in residential hydronic heating systems. The non-networked devices control up to six heating zones and can be coupled together in various configurations to accommodate any application. 

According to Navigant Research, annual revenue from energy-efficient HVAC systems will grow from $17.2 billion in 2013 to $33.2 billion by 2020. With ductless systems set to account for nearly 30 percent of all North American energy-efficient HVAC system revenue by 2020, the market for both single- and multi-zone ductless systems is booming.

In the HVAC industry, manufacturers are working to meet the growing demand for smart, connected devices homeowners can control from their computers, tablets, and smartphones. Here are a few of the latest products available on the market.