Fuel selection valve assemblies

A gas-fueled heater comprising:

• a housing having a plurality of holes passing therethrouh and having positioned therein:
• a first fluid pressure regulator configured to receive a first fluid from a fluid source;
• a second fluid pressure regulator configured to receive a second fluid from a fluid source;
• a fluid selection valve having a first inlet fluidly coupled to the first fluid pressure regulator and a second inlet fluidly coupled to the second fluid pressure regulator and configurable between a first state in which the fluid selection valve receives a flow of fluid from the first pressure regulator and a second state in which the fluid selection valve receives a flow of fluid from the second pressure regulator;
• a control valve fluidly coupled to the fluid selection valve and configured to receive a flow of fluid therefrom and return a flow of fluid to the fluid selection valve;
• and
• a burner fluidly coupled to the fuel selection valve downstream of the control valve
• wherein a first hole of the plurality of holes is adjacent a bottom of the housing, the first hole configured to allow a fuel source to connect to one of the first and the second pressure regulators;
• a first knob, wherein a second hole of the plurality of holes is adjacent a top of the housing, the first knob coupled to the control valve and configured to adjust a state of the control valve;
• a second knob, wherein a third hole of the plurality of holes is at a back of the housing, the second knob coupled to the fluid selection valve and configured to adjust the fluid selection valve between the first state and the second state.