Abstract: A portable heater includes a housing defining a base portion and a radiant heating assembly positioned within the housing. The radiant heating assembly includes a connector configured to receive a fuel tank having a combustible fuel, an ignition assembly configured to ignite the combustible fuel, and a radiant heating surface configured to be heated by ignition of the combustible fuel. The radiant heating surface is configured to emit radiant energy to a surrounding environment. An air flow channel is formed in the housing defines an intake opening and an exhaust opening. The exhaust opening is positioned proximate the radiant heating surface. A fan is positioned within the air flow channel to induce an airflow through the air flow channel. The airflow exits the exhaust opening to disperse the radiant energy from the radiant heating surface to the surrounding environment.

Abstract: In one aspect, a pet access apparatus including an actuator and a pet door movable between a closed position and an open position. The pet access apparatus includes communication circuitry to receive a signal indicative of proximity of a pet to the pet door. The pet access apparatus includes an interior camera, an exterior camera, and a processor operably coupled to the actuator, the communication circuitry, the interior camera, and the exterior camera. The processor is configured to determine an attempt by the pet to operate the pet door based at least in part on the proximity of the pet to the pet door, the interior image data, and the exterior image data. The processor is further configured to facilitate movement of the pet door from the closed position toward the open position upon the determination of the attempt by the pet to operate the pet door.