Final answer:
Heat lamps should not be installed above showers or near thermostats to avoid safety concerns and inaccurate temperature readings. They are best placed where they can directly warm an area without heat loss or safety hazards.
Step-by-step explanation:
Heat lamps are devices that emit infrared radiation, which is readily absorbed by the skin, providing a sensation of warmth to the body. In the context of indoor heating, particularly in bathrooms, it is best to locate heat lamps in positions where the warmth will be most beneficial and not interfere with other devices. Considering the options provided, heat lamps should typically not be located above showers due to safety concerns with water exposure, and not near thermostats as the heat can affect thermostat readings, leading to inaccurate temperature control. Placing heat lamps near windows is also not ideal as the heat can be lost through the glass. Therefore, the most suitable location for a heat lamp would be somewhere it can provide direct warmth where it is needed without causing safety or efficiency issues.