32 compatible models (no need to try to assemble a heating system from 70 to 80 models)|Branch circuit fusing (when required to meet NEC requirements for maximum 24 A/ckt)|Automatic control delays fan action until heating element is warm, when thermostat is satisfied, fan continues to operate until heating element is cool, by preventing circulation of cold air and expelling excess heat, comfort level is raised and component life is extended|Specially designed venturi outlet to meet that added throw required in vertical position, choice of optional diffusers for variety of air patterns, maximizing heat concentration and coverage in the vertical position|Advanced Airflow This wall heater's pull-through design draws air in across the heating element, so it runs cooler while providing an even blanket of comfort across its output range|Safe Operation A linear thermal cutout provides automatic protects the entire length of the heating element, Plus, most models feature a 24V control transformer for safer temperature adjustment|Three Times the Metal The steel sheath heating element is clad in copper and outfitted with aluminum fins, This sophisticated design helps the heater run more safely and cool down faster|Everything You Need for Installation This wall heater doesn't require any piping flues, valves or traps, It's self-contained and ready to install wherever you need extra warmth