System and Method for Heating

Abstract

A gas furnace is provided. Embodiments of the present disclosure generally relate to a gas furnace operated such that the flame temperature is maximized by ensuring operation at or near stoichiometric conditions. Additional systems, devices, and methods are also disclosed.

1 . A gas furnace, comprising:
 a plenum in fluid communication with a fan;   a heat exchanger comprising one or more tubes terminating at one end in the plenum; and   a balancing plate disposed between the one end and the fan, wherein the balancing plate adjusts the airflow induced in the one or more tubes by the fan.   
     
     
         2 . The gas furnace of  claim 1 , wherein the one or more tubes comprises a turbulence inducing feature disposed on an interior surface thereof. 
     
     
         3 . A method for operating a furnace, the method comprising:
 determining a desired equivalence ratio for a gas burner;   collecting combustion information from one or more sensors proximate the burner to determine the combustion properties of the burner's flame;   comparing the combustion properties of the flame to expected values to determine estimated equivalence ratio; and   adjusting the one or more operating parameters of the furnace if the estimated equivalence ratio deviates from the desired equivalence ratio.