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 SMART filter seal has been added to the Smart Air & Energy Solutions™ brand lineup of products. The filter seal is a durable, yet flexible, high-strength film designed to fit tightly over the air ...

Heating, ventilation, and air conditioning (HVAC) systems in commercial buildings can be of great assistance to firefighters, but they can also be our worst nightmare. In order to truly understand how ...