A printer, comprising: a drying zone where heated air is directed onto media; a heater assembly having a frame that has a first and a second opening; characterized in that it further comprises: a heater element (110, 110A) located in the first opening; a flow valve mounted to the frame and movable from a first position to a second position, wherein when in the first position, the flow valve blocks airflow through the first opening, when in the second position, the flow valve blocks airflow through the second opening, when the flow valve is between the first and second position the flow valve blocks at least some airflow through the first opening and blocks at least some airflow through the second opening; wherein a sum of an airflow through the first opening and an airflow through the second opening remains constant independent of the flow valve location; a fan having an inlet and an outlet, the inlet coupled to the heater assembly such that air is drawn through the heater assembly, the outlet coupled to the drying zone; a temperature sensor adjacent the fan outlet to measure the air temperature of air at the fan outlet; a controller coupled to the flow valve and to the temperature sensor to adjust the position of the flow valve to control the air temperature at the fan outlet. a drying zone where heated air is directed onto media; a heater assembly having a frame that has a first and a second opening; characterized in that it further comprises: a heater element (110, 110A) located in the first opening; a flow valve mounted to the frame and movable from a first position to a second position, wherein when in the first position, the flow valve blocks airflow through the first opening, when in the second position, the flow valve blocks airflow through the second opening, when the flow valve is between the first and second position the flow valve blocks at least some airflow through the first opening and blocks at least some airflow through the second opening; wherein a sum of an airflow through the first opening and an airflow through the second opening remains constant independent of the flow valve location; a fan having an inlet and an outlet, the inlet coupled to the heater assembly such that air is drawn through the heater assembly, the outlet coupled to the drying zone; a temperature sensor adjacent the fan outlet to measure the air temperature of air at the fan outlet; a controller coupled to the flow valve and to the temperature sensor to adjust the position of the flow valve to control the air temperature at the fan outlet. a heater element (110, 110A) located in the first opening; a flow valve mounted to the frame and movable from a first position to a second position, wherein when in the first position, the flow valve blocks airflow through the first opening, when in the second position, the flow valve blocks airflow through the second opening, when the flow valve is between the first and second position the flow valve blocks at least some airflow through the first opening and blocks at least some airflow through the second opening; wherein a sum of an airflow through the first opening and an airflow through the second opening remains constant independent of the flow valve location; a fan having an inlet and an outlet, the inlet coupled to the heater assembly such that air is drawn through the heater assembly, the outlet coupled to the drying zone; a temperature sensor adjacent the fan outlet to measure the air temperature of air at the fan outlet; a controller coupled to the flow valve and to the temperature sensor to adjust the position of the flow valve to control the air temperature at the fan outlet.