Patent ID: 9074789
Filing Date: 2015-07-07
Classification: F16K,F24F

Abstract:
1. A method for providing exterior fresh air into an interior of a building, the method comprising: providing a manifold comprising: adjusting a position of the moveable gate into one of two main positions, the two positions including a first position and a second position; and directing air through the manifold; wherein when the moveable gate is in the first position the exterior air enters the manifold through the exterior air inlet port and exits the manifold through the furnace combustion fan outlet port such that air passes through a furnace combustion chamber of the furnace and subsequently passes to the exterior of the building; and wherein when the moveable gate is in the second position the exterior air enters the manifold through the exterior air inlet port and exits the manifold through the interior air outlet port and subsequently passes to the interior of the building while the air from the interior of the building enters the manifold through the interior air inlet port and exits the manifold through the furnace combustion fan outlet port and subsequently passes to the furnace combustion fan of the heating system of the building, such that the exterior air is introduced into the interior of the building while air from the interior of the building is used to provide air for furnace combustion and which is exhausted to the exterior of the building through action of the furnace combustion fan.