What is the name of an encased electric heating element mounted along a wall close to the floor?

An encased electric heating element mounted along a wall close to the floor is known as an Electric Baseboard Heating Unit. This type of heating system is designed to provide comfortable warmth by radiating heat directly into the room from a low position, which is effective for heating spaces efficiently. The baseboard units are typically installed near the floor to maximize heat distribution and to minimize drafts that can be felt higher up in the room.

This design allows the air to circulate naturally; as the air near the floor heats up, it rises, creating a convection current that helps to maintain a consistent room temperature. Electric baseboard heaters are commonly used in residential and some commercial settings, especially in areas where centralized heating systems are not practical. Other choices listed may serve heating purposes, but they are designed for different applications or configurations.