recirculation

2 года назад

This video explains the purpose of the air recirculation button in a car. The speaker explains how the button works and when it's most useful, such as on hot days to cool the car down quickly or when defogging windows. The speaker also provides tips on how to use the button effectively in each situation.

2 года назад

This video explains the Navien NaviCirc recirculation valve, a device that makes hot water readily available at fixtures. It simplifies recirculation by using the cold water supply line as a return line, eliminating the need for a dedicated return line. The video also discusses compatibility with various Navien water heaters and installation options.