To fully understand how to install a high-velocity HVAC system, one must know what it is and what it does. Basically, it is a small duct, high-velocity airflow, heating and cooling system designed to ...

Many in our industry believe the duct material used in an installation determines how well the HVAC system moves air. Because of this mentality, flexible duct often gets a bad name. The issue isn’t ...

NEC cabling installation requirements are straightforward, but markings and new offerings may create confusion. You're not alone if markings and listings are making your plenum cabling selection a ...