Thor Industries Inc. today announced several projects to expand production and office space at its Heartland Recreational Vehicles subsidiary in Elkhart, Ind. According to a press release, the projects include the purchase and renovation of an existing office building, expansion of a plant dedicated to production of lightweight travel trailers, expansion of a production facility to produce toy haulers, the renovation and dedication of a single facility to the production of destination trailers, and the purchase and renovation of a building for a new service center.