Final answer:
Yes, the wall space behind the door is included in receptacle layout as per NEC 210.52(A), if the space is at least 2 feet in width and not obstructed by the door when open. Receptacles should be placed so that electrical devices such as heaters have a power source within reach, and the frequency of charging will vary based on the device's usage.
Step-by-step explanation:
The National Electrical Code (NEC) states that if a door does not completely cover the wall space when it is opened, you must include that wall space when arranging outlets in a room. NEC 210.52(A) is the rule that applies in this case. It states that outlets must be installed so that no point in any wall space that is measured horizontally along the floor line is more than 6 feet from an outlet. Any area two feet or wider is considered wall space; this includes the space measured around corners but does not include sliding panels or similar items.
Consequently, the wall space measurement for the receptacle layout includes the space behind the door if it is two feet or wider and the door does not impede that space when fully opened. It's imperative to have a power source close by if electrical appliances like heaters are used in this area to prevent overloading circuits. The electric potential needed for an electrical device to operate correctly and the intervals between potential replenishments are determined by the device's specifications and intended use. Generally speaking, a device's need for potential replenishment, or charging, increases with usage.