Many Chinese believe in feng shui (风水) and thus, they hope to place their air conditioners in the best position based on it. I'm a Chinese and an air conditioning engineer at the same time. So, I...

HVAC is one of the most confusing engineering fields for many students as there is hardly any official categorization for it. Even engineers that are currently working in the HVAC industry may not...

If you recently rented or moving into a small room and you need air conditioning, a window air conditioner is probably your primary choice since it is smaller in capacity. But, there are so many...

Many people often stay in a room with the air conditioner turned on for a prolonged period of time. So, they wonder if air conditioners take air from outside to keep them refreshed. Hence, I did some...

A ventilation fan is necessary when your bathroom has no window. However, many people are wondering what type of duct they should be used to vent the bathroom. So, I decided to post a...

More and more people are switching to inverter air conditioners nowadays. People who are using inverter air conditioners often have positive comments. So, what are inverter air conditioners? How are...