Garage Heat, DIY Security System | Ask TOH

Coming up on Ask This Old House Richard travels to Akron, Ohio to install a garage heater; Tom teaches the basics of sanding; Ross installs a DIY security system; Mark investigates a strange issue happening to foundations in the Northeast.   How to Heat a Garage Workshop Richard travels to Akron, Ohio to install a garage heater.  Where to find it? Richard installed the High Intensity Radiant Workshop Heater, manufactured by Mr. Heater.