Using dry nitrogen to pressure test a system is a very effective method of verifying a system is leak-free. In fact, I believe it is more reliable than using a standing vacuum test typically performed ...

Last month, we looked at building pressure essentials to help you understand how they affect HVAC systems and customer comfort. If you remember, the building acts like a duct system and HVAC system ...

Juan has been a home inspector for 10 years and runs a successful home inspection company in Richmond, VA. He loves inspecting homes, but his real passion is educating home owners and newer inspectors ...