Outdoor heating & cooling can be really tricky. With no walls to contain temperatures, you have to think about what exactly you are trying to achieve. Heating often resembles a controlled campfire, and recreating that primal activity of either cooking on an open fire or telling stories around the campfire is part of what it is all about. Gas tables, braziers, chimeneas, and fire pits all take us back to the days when scary things walked at the edge of firelight. Cooling involves providing shade and a breeze, which could mean putting a ceiling fan in a pavilion.