HVAC Duct Systems - Round Hard Duct WorkHVAC Duct Systems - Ductwork systems channel the air to the spaces where it is needed from the air handler. HVAC duct systems also pulls the air from the space and channels it back to the air handler where it needs to be conditioned. In some commercial applications the area above the ceiling is considered the return duct. All the return air is channeled back to the air handler through the plenum where it is conditioned in the air handler. Part of the conditioning process is the air being passed through a filter and then an exchanger like a coil or heat exchanger.

Some of the best type of duct work systems are round hard duct systems. Round duct systems allow better air flow with the least amount of turbulence. This allows the designed amount of air flow to reach the spaces with the least amount of work from the blower motor. That equates to energy savings and better comfort for the occupants. In square or rectangle duct systems turning vanes are used in all turns to reduce turbulence. All ductwork systems require insulation. Duct work typically runs through unconditioned spaces and the insulation serves three purposes. First it reduces any noise from the air flowing through the duct system. Secondly, the duct insulation reduces heat loss or heat gain from the unconditioned space to the duct system or vice versa. Finally, in cooling applications the air conditioning duct system typically operates below the dew point. The ductwork insulation provides a vapor barrier which prevents the duct work from sweating and causing problems associated with moisture. All this is important because it saves energy when you increase efficiency. In most cases round hard duct work is easier to assemble and build. If you are getting new duct work it is a good idea to consider round hard duct work.

You can learn more about duct work and HVAC here.

High Performance HVAC

HVAC Duct Systems – Round Hard Duct Work

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