We just bought a house with a Pro-Former-Z ram air injection system stove. It burns wood and coal. We were left instructions but they refer to a RAM-Air adjustment slide rod. It is supposed to allow combustible aire to be naturally drawn into the fire chamber. We have no idea what this is. There is a rod to adjust the damper and there are two rods on the left side of the stove. On seems to be used to shake ashes out of the firebox but we are not sure what the other one does. Could this be the RAM-air adjustment rod? Thanks for your help.