Heating apparatus with fan

Abstract

A heating apparatus can have a sealed combustion chamber and a burner. The heating apparatus can have an air shutter that controls the amount of air that mixes with fuel directed toward the burner. The air shutter can be controlled by rotating a shaft that connects to the air shutter. The heating apparatus can also have a system of channels along its front face which direct air along the front face.

What is claimed is: 
     
         1 . A heating apparatus comprising:
 a sealed combustion chamber;   a burner within the sealed combustion chamber;   a fuel channel for directing a fuel from a fuel source external the sealed combustion chamber to the burner;   an air shutter within the sealed combustion chamber, said air shutter comprising a rotatable sleeve, the rotatable sleeve configured to rotate about a shutter axis and adjust the size of a shutter opening;   an air shutter control comprising a shaft, the air shutter control cooperating with the air shutter such that rotating the shaft rotates the rotatable sleeve; and   wherein the shaft must rotate at least 180 degrees to change the air shutter from a minimum airflow position to a maximum airflow position.