AT Overland & Adventure Trailers offer Propex Heatsource furnaces and are an approved Propex Heatsource vehicle dealer.
Adventure Trailers / AT Overland is a Overland fitment center, retailer, and manufacturer. Started as a trailer manufacturer over ten years ago, they now also outfit vehicles, and manufacture accessories for the North American Overland community. They offer off-road trailers, vehicle modifications, camper shells, vehicles accessories, storage solutions, roof tents, vehicle services and accessories.
http://store.adventuretrailers.com/categories/HEATER/
http://www.adventuretrailers.com