Dual fuel heater with selector valve

Abstract

A heater assembly can be used with a gas appliance. The gas appliance can be a dual fuel appliance for use with one of a first fuel type or a second fuel type different than the first. The heater assembly can include at least one pressure regulator, a housing, and an actuation member. The housing has a first fuel hook-up for connecting the first fuel type to the heater assembly, and a second fuel hook-up for connecting the second fuel type to the heater assembly. The actuation member can control a flow through the heater assembly based on whether the first or the second fuel hook-up is used.

What is claimed is: 
     
         1 . A heater assembly for use with one of a first fuel type or a second fuel type different than the first, the heater assembly comprising:
 a first pressure regulator configured to regulate a fuel flow of a first fuel type within a first predetermined range   a second pressure regulator configured to regulate a fuel flow of a second fuel type within a second predetermined range different from the first;   a housing comprising:
 a first fuel hook-up for connecting the first fuel type to the heater assembly, the first fuel hook-up configured to direct fuel flow to the first pressure regulator; 
 a second hook-up for connecting the second fuel type to the heater assembly, the second fuel hook-up configured to direct fuel flow to the second pressure regulator; 
 a first outlet in fluid communication with both the first and second pressure regulators; 
 a first inlet; 
 a second outlet; and 
 a third outlet; 
   a first actuation member having an end located within the first fuel hook-up and having a first actuation member first position and a second position, the actuation member configured such that connecting a fuel source to the heater assembly at the first fuel hook-up moves the actuation member from the first actuation member first position to the second position,
 wherein in the first actuation member first position, fuel flow through the first fuel hook-up and the second outlet is prevented and in the first actuation member second position, fuel flow through the first fuel hook-up and the second outlet is permitted; 
   a second actuation member having an end located within the second fuel hook-up and having a first position and a second position, the actuation member configured such that connecting a fuel source to the heater assembly at the second fuel hook-up moves the actuation member from the first position to the second position,
 wherein in the second actuation member first position, fuel flow through the second fuel hook-up and the third outlet is prevented and in the second actuation member second position, fuel flow through the second fuel hook-up and the third outlet is permitted.