Old Air Products Compact Heater Small Compact design with three round multi directional louvers and dual blowers make this a excellent choice for adding heat to hot rods and other small vehicles with limited dash space. Heater includes mounting brackets, fan switch and instructions. Dimensions: 10-1/4" wide x 4-1/2" tall x 9-1/2" deep For added comfort add optional cable or electronic bypass heater valve to control coolant flow to adjust temperature of heater. ...