Purchasing a new heating and cooling system could be in your future. Selecting the right furnace for your home requires understanding the various products available. A two-stage heating system is ...

A group of researchers in Thailand outlined a new methodology to identify the optimal temperature in two-stage cascade heat pumps using non-azeotropic refrigerants. Through their analysis, the ...

An international research team has conducted the first empirical study on retrofitting PV-assisted two-stage heat pump (HP) systems in existing multi-family buildings. The research is part of the ...

Energy Star certification is an important distinction HVAC manufacturers aim for their products to achieve. The designation recognizes highly efficient performance, and 2016’s list of the most ...