What are the installation clearances for Modine 5.7KW AmpDawg 208/240 V Electric Unit Heater?

Clearances to combustible materials are the following: Top, 1-inch. Sides, 1-inch. Bottom, 12-inches minimum for adequate air flow. Rear, 12-inches minimum / 18-inches preferred for serviceability. Front, avoid obstructions as much as possible. Suggested maximum mounting height, 8-feet. If you have any further questions, please feel free to give us a call! Thanks.