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 ...

When the combustion air duct is connected directly to the return plenum for a furnace, the blower fan on the furnace pulls outdoor air in to the return plenum. To supply this air to the furnace room, ...

The Merriam-Webster dictionary defines ethics as “the code of good conduct for an individual or group.” When HVAC professionals fail to deliver properly designed and installed residential duct systems ...

Installing a Heating, Ventilation and Air Conditioning (HVAC) system in your home may seem complicated, but with a little guidance we think you can pull it off. Even if you have no HVAC experience, ...

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 ...