Slide the mounting handles (part A) into the rail on the back of the heater from the opposite side of the cables. Make sure both handles face into the same direction.
Drill four holes into the wall, two for each mounting handle (part B). Use the mounting handles as stencils and level them to make sure the heater will hang straight on the wall/ceiling. You can chose the distance between the two handles to your liking but make sure the distance doesn't exceed the length of the heater. Remove the nut form the wall anchors (part E) and place the wall anchors into the drilled wholes.
Place the mounting handles (part B) onto the wall anchors and secure them with the wall anchor’s nut (part E) using a wrench.
Place the heater against the wall/ceiling and attach each of the mounting handles that are mounted on the wall (part B) with the mounting handles attached on the heater (part A). Secure them with two screws (part C) and two wing nuts (part D) on each side. Chose the mounting holes according to the way you want the heater to be directed.
Finally secure the mounting handle (part A) to the heater using two screws and two wing nuts on each side. Make sure everything is safely mounted and secured.