6. Attach the Wires for the Solar Panel and the Fan
The wires can be concealed within a wire holder to keep them safe and provide a more polished looking result. Again, you want your heater to be a conversation piece perhaps, but not an eyesore.
As you know, DIY projects sometimes tend to look like Rube Goldberg machines.
7. Attach the Fan
The fan can be attached with the aluminum tape.
In this example, the tape was spray painted to match the rest of the case.