If your indoor air handler is the heart of the system the supply ducts are the arteries and the return ducts are the veins.
Air supply ventilation system.
A decade ago it was commonly recommended as the easiest and least expensive way to ventilate a home in a humid climate.
A multiport forced air home ventilation system piggybacks on the ductwork of a central heating or cooling system by running an intake duct from outside into the return ductwork.
Supply vents and return vents.
Supply ventilation systems use a fan to pressurize your home forcing outside air into the building while air leaks out of the building through holes in the shell bath and range fan ducts and intentional vents if any exist.
Increase airflow to occupied spaces when possible.
The most common type of supply ventilation system uses a home s existing forced air ductwork to distribute fresh ventilation air.
The small duct in the photo below is supposed to bring in outdoor air for ventilation in this new home.
Like exhaust ventilation systems supply ventilation systems are relatively simple and inexpensive to install.
Supply ventilation systems use a fan to pressurize a structure forcing outside air into the building while air leaks out of the building through holes in the shell bath and range fan ducts and intentional vents if any exist.
By pressurizing the house these systems discourage the entry of pollutants from outside and prevent backdrafting of combustion gases from fireplaces and appliances.
Components of an air supply ventilation system mechanical air supply ventilation is generally by fan which may be stand alone or part of an air conditioning or heat recovery system.
Air ducts and vents are part of a building s heating ventilation and air conditioning hvac system.
Turn off any demand controlled ventilation dcv controls that reduce air supply based on occupancy or temperature during occupied hours.
To move fresh air from outside to indoors also requires an air intake an air filter to remove particulates ductwork and room diffusers.
Like exhaust ventilation systems supply ventilation systems are relatively simple and inexpensive to install.
Ensure ventilation systems operate properly and provide acceptable indoor air quality for the current occupancy level for each space.
Most supply ventilation systems use the existing ductwork of the central heating and cooling systems and their blowers.
There are two types.
As mentioned above supply ventilation systems work by pressurization.
It s a simple method that consists of a duct running from an outdoor wall cap to the return plenum of the hvac system.