This article was written by Michael Housh, owner of Housh Home Energy and a regular contributor to HVAC School. Thanks, Michael! This is another article in trying to relate the air side of HVAC with the water side. In this article, I’m going to talk about how to determine pump flow (GPM) based on the […]

I've always liked old books. Think about an old printing press somewhere in Chicago or Boston or Scranton, Pennsylvania. Imagine workers with their hands covered in ink up to their elbows, setting type while giant machines of iron, steel, and brass stamp out a book page by page. Then those pages go on to be […]

This is a subject that even many commercial guys don’t have to consider. For the majority of equipment, even refrigeration equipment, all that is required for proper oil return is to size the suction line properly, trap the suction line as needed, and allow for proper slope towards the compressor. Then we get into larger […]