An apparatus for delivery of fluid, said apparatus comprising a controller , wherein said controller comprises: a housing, a first inlet , a second inlet and an outlet , wherein said housing defines a first mixing-chamber for receiving water from said first and second inlets, wherein said first inlet is, in operation, a permanently open inlet for enabling water to enter said first mixing-chamber , wherein said second inlet is for enabling water to enter said first mixing-chamber , wherein said first inlet is configured to be connected to a fluid source such that a first flow can flow into said first mixing-chamber , wherein said second inlet is configured to be connected to the fluid source such that a second flow can flow into said first mixing-chamber , wherein said outlet is configured to be connected to a consuming device such that a third flow can exit said first mixing-chamber into the consuming device, a thermally actuated valve having a valve body and a thermal actuator connected to the valve body , wherein the valve body is disposed to transition , in operation, between a first position, in which the valve body blocks the second inlet , and a second position, in which the valve body opens the second inlet , wherein the thermal actuator , in operation, moves the valve body from the first position to the second position in response to an increase in temperature, wherein said thermally-actuated valve , in operation, opens said second inlet when a temperature of the fluid in said first mixing-chamber exceeds a threshold, and wherein the controller further comprises a set point control having a setting knob for controlling a set point at which ,in operation, the thermally actuated valve will open the second inlet . a housing, a first inlet , a second inlet and an outlet , wherein said housing defines a first mixing-chamber for receiving water from said first and second inlets, wherein said first inlet is, in operation, a permanently open inlet for enabling water to enter said first mixing-chamber , wherein said second inlet is for enabling water to enter said first mixing-chamber , wherein said first inlet wherein said housing defines a first mixing-chamber for receiving water from said first and second inlets, wherein said first inlet is, in operation, a permanently open inlet for enabling water to enter said first mixing-chamber , wherein said second inlet is for enabling water to enter said first mixing-chamber , wherein said first inlet is configured to be connected to a fluid source such that a first flow can flow into said first mixing-chamber , wherein said second inlet is configured to be connected to the fluid source such that a second flow can flow into said first mixing-chamber , wherein said outlet is configured to be connected to a consuming device such that a third flow can exit said first mixing-chamber into the consuming device, a thermally actuated valve having a valve body and a thermal actuator connected to the valve body , wherein the valve body is disposed to transition , in operation, between a first position, in which the valve body blocks the second inlet , and a second position, in which the valve body opens the second inlet , wherein the thermal actuator , in operation, moves the valve body from the first position to the second position in response to an increase in temperature, wherein said thermally-actuated valve , in operation, opens said second inlet when a temperature of the fluid in said first mixing-chamber exceeds a threshold, and wherein the controller further comprises a set point control having a setting knob for controlling a set point at which ,in operation, the thermally actuated valve will open the second inlet . <EOS>