Has anyone run across a video or instuctions on blowing in you own insulation on the walls? I have drywall on my garage walls and photos of the bare walls before the drywall was installed. They insulated the ceiling when the house was built. The front wall is part of the house and it is already insulated. I have installed foam panels on the garage door and just need to do the side walls to complete the project. Once that is done I will try and get a proper heater.