Photo:

heater1.JPG

heater3.JPGtt

Description:
THis small space heater has a safety feature that turns the heater off if it is not sitting on its base. The small spring-loaded piston shown at right (next to the black rubber foot) must be depressed for the heater to work.

Categories:

Mistake-proofing category: mistake detection
Setting function: Physical
Regulatory function: Shutdown
Source: Off-the-shelf

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