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Gas cutoff system
Posted by
keepersg
,
22 November 2020
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3704 views
We've had repeated problem with pans being left on the burners in our kitchen and the house filling with smoke before anyone realizes what's happening. In order to prevent this from happening again, I constructed a timed gas cutoff system that is mounted inside the cabinet on which the cooktop is mounted. The gas piping routes the gas supply for the cooktop through an electrically controlled valve. There is a manual bypass valve which is the yellow valve in the photo, Initially, I tried a 120VAC solenoid valve but the hum from the valve proved unacceptable. I substituted a low voltage ball valve powered by a spare doorbell transformer which is normally closed (it's a valve, not a circuit) and opens when powered. When power is removed it returns automatically to closed. Motion sensors in the the kitchen determine if anyone is present (through an Elk M1G) and programs on an ISY994i monitor this. When motion is detected the valve is opened. If there's no motion for 10 minutes, the valve closes. In constructing the piping it is critical to pressure test the fittings to make certain there are no leaks. A second test with soap solution after installation offers further assurance. A gas detector in the kitchen will also turn the gas off as will a smoke detector in the adjacent dining room.
. I installed the gas detector in the kitchen to catch any possible failure in the system. It's hardwired to the Elk M1G.
Very nice @keepersg.
2 years ago here left a pot of water boil dry in a Teflon pot. I did it trying to soften some plastic.
Typically Kitchen is off limits to me.
The effects of Teflon are typically death to a bird in the house which I did not know about.
This debacle sent my now 43 year old parrot to the bird hospital almost dead with lung damage.
She was put in an oxygen tent for 3 days which saved her. She is fine today.
No more Teflon in the house these days. Purchased an Air Fryer a few weeks back and did notice it used Teflon such that I returned it and purchased a ceramic based Air Fryer.