This paper highlights the system requirements and operating conditions of automatic air recirculation valves and reviews compatibility of existing calculator types with these requirements. When ...

Air recirculation in ventilation systems is essentially the mixing of a certain amount of exhaust air into the supply air. This process provides a reduction in energy consumption when heating fresh ...

Have you ever been sitting there staring at the climate control panel in your car, and wondered about that interesting little button with a car and an arrow gracefully swirling around inside it? You ...

Have you ever wondered what that icon depicting a car with a little open ended arrow in your vehicle is for? It's called the air recirculation button, and using it could help you cool your car down ...

Nothing beats walking into a cozy, warm home on a frigid winter day, or a cool, comfortable one when outdoor temps are through the roof. Sometimes, it even feels magical. After all, all you are ...

Buying a new HVAC system is one of the most important purchases you can make for your home. Consumer Reports indicates that more than 75% of U.S. homes use air conditioning, and 90% of new homes are ...