Two Way Attic Inlets
There are primarily two basic types of attic inlets used in broiler houses today, four way and two way. With a four way attic inlet fresh air exits through the four sides of the typically square inlet while with two way, the air exits on just two sides of a square or rectangular shaped inlet. The air is then directed along the ceiling to mix with the hot air produced by the birds and/or heating system before moving down to floor level. Though both types of inlets have proven to both improve air quality and reduce heating costs during cold weather, there are subtle differences in how they function so they often need to be installed and managed a little differently.