a valve that selectively directs the exhaust of the combustion fired hot oil heater 13 to either the rotary pre heater 6 or to the atmosphere through a port not shown or a combination or mixture of the two depending upon the needs of the rotary pre heater 6 input and exit of material from rotary shaft mixer 9 could be through various conveyors and connections in one configuration the shaft mixer input connection 91 could be a rotary air lock also the exit connection 92 could be a rotary air lock storage conveyor 20 may be a drag slat or other conveyor or material moving apparatus which is suitable to move the material from the rotary shaft mixer 9 to the storage silo 21 or other suitable storage driveway scale 22 is a scale for measuring the weight of the material hauled away in trucks heated liquid asphalt storage tank 23 is a tank for storing and heating liquid asphalt lastly control house 24 is shown without any wires connecting it to the various elements and valves through the low emission energy efficient hma high rap capable hma plant 100 but it should be understood that any means for communicating information could be used including wired and wireless connections in operation the low emission energy efficient hma high rap capable hma plant 100 operates generally as follows rap is.