In which circumstance should fire devices not be installed?

Fire devices, such as smoke detectors, should not be installed in bathrooms primarily due to the presence of high humidity and the likelihood of condensation. This environment can lead to false alarms or malfunctioning of the device, as excessive moisture can interfere with the sensor’s ability to detect smoke effectively.

Installations near heating systems can pose risks, as smoke may not be detected promptly if a device is too close to a heat source, potentially creating delays in alarm activation. Locations where ambient conditions are ideal are typically preferred, as this helps ensure devices function optimally. Placing fire devices near windows can also be problematic due to potential interference from drafts and outdoor elements, which may affect their performance.

In summary, the bathroom environment—characterized by high humidity and potential for steam—poses clear challenges for the proper functioning of fire alarm devices, making it an unsuitable location for installation.