Heat/Flame resistant contact sensor

[Big517]

Does such a thing exist?

I have my NG fireplace automated to turn on and off via contact closure relay and it works flawlessly however the fireplace has a flue with a manual lever at the top of the firebox and if the fireplace is turned on while that flue is shut then its trouble.

His do I monitor the status of the flue door without melting a sensor? Does anyone know of a sensor for this application?

I have an ELK panel and Zwave control via Vera.

Thanks in advance.

 

[Del91574]

Plenty of industrial switches could be adapted, best I could say is look at a place like Grainger.

You could also move the switch out of the thermal location and use linkages to trigger it.

 

[Big517]

Thanks for the suggestion. What are Linkages? Sorry I'm not familiar, but are you suggesting a looped wire that will simply connect / close the circuit, exposing only the wire to the heat?

 

[Del91574]

Without knowing where the switch would need to be mounted and what would physically trigger it, A physical pushrod or similar to a leaf microswich mounted remotely, what have you....You are probably going to be past the ambient of most wiring without getting pretty expensive.