Patent ID: 8851065

Claim:
A heating system for use with either a first fuel or a second fuel different from the first, the heating system comprising: a burner; a nozzle comprising: a nozzle housing; an inlet; at least two outlets; a valve comprising a valve body within the nozzle housing and between the inlet and the at least two outlets, the valve body defining a passageway configured to direct fluid flow through the passageway of the valve body and to act on an internal portion of the valve body; and a biasing member comprising a spring and a diaphragm, the diaphragm comprising a hole and the valve body positioned within the hole wherein the valve and biasing member are configured such that fluid flow of a predetermined pressure acts on the diaphragm and valve body to at least one of 1) open, and 2) close the valve body within the nozzle housing to control fluid flow through the nozzle, wherein independent of the position of the valve body, the nozzle being configured such that at least one of the at least two outlets remains open.