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 ...

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 ...

The Spra-Kleen humidifiers have a 1-1/2 gallon per hour capacity, which is controlled by a humidistat. According to the manufacturer, the humidifiers have a unique method of humidifying and cleaning ...