Device Rigged to Fan Cord

[Mike Lamb]

This device was rigged to the cord of an old attic fan. Might it be some kind of thermostat?

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[Steven Saville]

Looks like a temperature probe found on an aquastat which is commonly used on boilers or heating systems. Note the male thread which would screw into a threaded port thus immersing the probe into liquid. Strange use here. Perhaps using it to sense attic temperature to operate an attic fan?

[Lon Henderson]

Or a pipe bomb:crazy:

[Thomas McKay]

What ever it is the electrical connection would be required to be in an approved junction box with a cover.

[Jim Warters]

Was this my Dad's house? ;)