Valve assemblies for heating devices

Abstract

In certain embodiments, a valve assembly can comprise a housing, a valve body and a nozzle. The housing can define a first inlet and a second inlet. The valve body can be positioned within the housing and configured to rotate between a first position for a first fuel type and a second position for a second fuel type different from the first. A control knob is operatively coupled to the valve body and to an air shutter such that rotation of the control knob controls the state of the valve body and the position of the air shutter.

What is claimed is: 
     
         1 . A valve assembly comprising:
 a housing defining:
 a first fuel input; 
 a second fuel input; 
 a first flow path; 
 a second flow path; 
 a third flow path; and 
 a fourth flow path; 
   a fluid flow controller configured to selectively permit fluid communication between the first fuel input and either the first flow path or the second flow path, and configured to selectively permit fluid communication between the second fuel input and either the third flow path or the fourth flow path;   a first nozzle member defining an inlet and an outlet, the inlet of the first nozzle member in fluid communication with the first flow path; and   a second nozzle member defining an inlet and an outlet, the inlet of the second nozzle member in fluid communication with the second flow path.