A 4-zone Condenser helps control the temperature in four different areas of your home. This is a great solution for homes that have rooms with different heating or cooling needs. For example, your living room might need to stay cool, while your bedroom needs to stay warm. A 4-zone system can handle both at the same time, making sure every room feels just right. https://news.bangboxonline.com/4-Zone-Condenser#google_vignette