Abstract: A method of controlling a heating appliance includes receiving a level selection at a controller, reading a starting parameter at an initiation of a heating process and providing a signal to the controller, accessing a memory including a matrix of heating parameters, selecting a first group of equations of the matrix at the controller based on the selected level, where the first group of equations include at least a first equation and a second equation corresponding to first and second starting parameter ranges, identifying an equation of the first group of equations of the matrix at the controller, the matrix having a corresponding starting parameter range based on the starting parameter, and performing the heating process according to the identified equation.

Abstract: Door mechanisms for simplified and unobstructed passage through an entranceway of a collapsible structure are disclosed. The door mechanism may include a fanning, swinging or sliding door configured to move between an open position and a closed position within the entranceway. The door mechanism may include a fastener to secure the door to the structure or to an adjacent door. The door mechanism may be provided as part of a stand-alone structure, or as a part of a structure adapted for use with other adjacent structures.

Abstract: A tent pole bracket for use with a tent having a pole, which may comprise a body having a first end and a second end and a first side and a second side, the body including a wall defining an elongate cavity for receiving a tent pole, the cavity being open on the first end and open on the first side, and the body having a slot for receiving a strap, and methods of use thereof.