Many people want to switch from a central air conditioner to a mini split system. However, they wonder if they can use ducted mini splits and connect them to the existing ductwork. So, I did some...

Static pressure is a common term used in HVAC. Not only homeowners but junior engineers often don't understand what static pressure means. As static pressure is critical to the performance of HVAC...

Large chillers often have an economizer to improve energy efficiency. However, engineers often don't quite understand what is economizer in chiller. So, I did some studies. Chiller economizer...

Air conditioner pipes often run on the house exterior wall. But, many people find it ugly and they want to cover it up nicely. So, how do you cover air conditioner pipes properly? To cover air...

Many people want to switch from using the centralized HVAC system in their apartment to mini splits for better performance and energy efficiency. But, they wonder if mini splits are good for...

Compressor is the heart and soul of air conditioners in HVAC. It is the most important component of an air conditioner and chiller. However, there are many types of compressors in HVAC. So, let's...