Patent ID: 8517718

Claim:
A dual fuel heating source comprising: a first pressure regulator to regulate a flow of a first fuel; a second pressure regulator to regulate a flow of a second fuel different from the first fuel and at a higher pressure than the first fuel; a fuel selector valve having a first position configured to permit a flow of the first fuel from the first pressure regulator through the fuel selector valve and to prevent a flow of the second fuel therethrough and having a second position configured to permit a flow of the second fuel from the second pressure regulator through the fuel selector valve and to prevent a flow of the first fuel therethrough; an outlet valve having a set of inlets and first and second sets of outlets wherein in a first position of the outlet valve flow is permitted into the set of inlets through the outlet valve to the first set of outlets and in a second position of the outlet valve flow is permitted into the set of inlets through the outlet valve to the second set of outlets; wherein the fuel selector valve and the outlet valve are separately sealed valves coupled together by a connecting shaft configured to cause the fuel selector valve and the outlet valve to rotate in an axially aligned manner such that selecting the first position on fuel selector valve also selects the first position on the outlet valve and selecting the second position on the fuel selector valve also selects the second position on the outlet valve.