Stove on timer

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Not to long ago we did an install similar to what you are asking about at fire station. The circuit to the stove was connected to a contactor and the control circuit was run to a button next to the door opener for the fire engine. If they had to go out on a call on the way to open the door they hit the "range off" control at the same time. Even firemen forget to turn off the stove.:smile:
 
there are other ways to make a stove turn off with a timer that would be less expensive, but they would void the U.L. listing and the Manufactures warrenty, LOL...
 
We actually put in a contactor system for a stove a month ago. The reason being is that a woman of the house with alzheimers was leaving the stove on, so the family members who were taking care of her would go to the breaker panel and shut the stove off. We put a switch at the top of the basement stairs to control the contactor at the panelboard.
 
quogueelectric said:
Was just thinking about a similar setup for a relative that has stroke damage . . . I am thinking of putting it on a 10 min timer which would have to be repeatedly pressed every 10 minutes when cooking . . .
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No disrepsect intended, but having to do that just might give me a stroke. Think of Thanksgiving.
 
mdshunk said:
I was replacing some ballasts in a lab once, and they had a gizmo that stirs boiling pots of whatever. I think it was magnetic. They dropped in a propeller thing in the stew and it started spinning when it hit the bottom.
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Yep, it's called a magnetic stirrer (believe it or not :grin:). The 'propeller' is most likely a Teflon-coated magnet, and reacts with a rotating magnet beneath the platform.

Years ago, Popular Electronics mag had a article about building one from scratch or a partial kit. They even had a source for the coated magnet.
 
480sparky said:
If doing this could be done cheap, then every stove would have it built in.
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Well, they sorta already do. If you're good with reading schematics and/or tracing wiring, it wouldn't be that though to re-route one (or more, or all) of the burners' controls through the oven's timer contacts.

You could make it so the timer does or does not still control the oven, too. You could even take advantage of the timer-on control if you want to delay-start a crock-potful of firehouse chili or something.


ultramegabob said:
there are other ways to make a stove turn off with a timer that would be less expensive, but they would void the U.L. listing and the Manufactures warrenty, LOL...
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This might be one. :grin:
 
LarryFine said:
Well, they sorta already do. If you're good with reading schematics and/or tracing wiring, it wouldn't be that though to re-route one (or more, or all) of the burners' controls through the oven's timer contacts.

You could make it so the timer does or does not still control the oven, too. You could even take advantage of the timer-on control if you want to delay-start a crock-potful of firehouse chili or something.



This might be one. :grin:
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yep, thats pretty much what I had in mind. my comments on this subject are purely for educational purposes only , you should not attemt to alter electrical appliances as it will void the manufactures warrenty and could cause unforseen saftey issues to human life and property...... :D
 
ultramegabob said:
yep, thats pretty much what I had in mind. my comments on this subject are purely for educational purposes only , you should not attemt to alter electrical appliances as it will void the manufactures warrenty and could cause unforseen saftey issues to human life and property...... :D
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Mine, too. ;)
 
mdshunk said:
Fire grenades have been around in one form or another for 100 years. They work just fine.
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They may put out the fire, but if no one is home, what's to keep the burners from re-ingiting the combustibles on the stove?
 
480sparky said:
They may put out the fire, but if no one is home, what's to keep the burners from re-ingiting the combustibles on the stove?
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Is this seriously a real problem? Millions of Americans leaving their stove on with combustibles on top? Sure does sound like trying to solve a problem that doesn't exist.
 
mdshunk said:
Is this seriously a real problem? Millions of Americans leaving their stove on with combustibles on top? Sure does sound like trying to solve a problem that doesn't exist.
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I doubt that its a problem for others, but at my place and i also manage rental property and have seen where renters have done this thing before. In fact some have even asked about a timer or some type of device to be installed. I just remind them to be sure they have RENTERS INSURANCE and just be mindful of the stove.

But it would be nice to have a 'cheap' device/timer that can be used to deter this time of potential thing.

Whats the real difference between a [/b]'current transformer' and a 'current sensor' ??
 
brother said:
Whats the real difference between a [/b]'current transformer' and a 'current sensor' ??
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A current transformer is just a coil that varies its output signal. A current sensor it typically a slang term for a current sensing relay. It will switch a set of contacts at a certain current level that is set on the frontpanel dial. this would be what you'd need. Dial it in for anything more than clock current, and it would switch a set of contacts to start your control timing sequence.
 
mdshunk said:
A current transformer is just a coil that varies its output signal. A current sensor it typically a slang term for a current sensing relay. It will switch a set of contacts at a certain current level that is set on the frontpanel dial. this would be what you'd need. Dial it in for anything more than clock current, and it would switch a set of contacts to start your control timing sequence.
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thanks for the info. I assume that both of these type (sensor and current transformer) both come like 'donuts' ?? So they can just fit around the wire??
 
mdshunk said:
Is this seriously a real problem? Millions of Americans leaving their stove on with combustibles on top? Sure does sound like trying to solve a problem that doesn't exist.
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And the OP wants to turn power off, not extinquish a fire.
 
brother said:
thanks for the info. I assume that both of these type (sensor and current transformer) both come like 'donuts' ?? So they can just fit around the wire??
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For larger gauge wire, you'd need to use a current transformer and put its leads through the window of the current sensing relay. There aren't too many current sensing relays with a very big window for large wires. The CT, on the other hand, is available infinately large or small.
 
Oh Brother, Brother. I think you guy's need to use the microwave oven more. Maybe some memory classes. :D :D By the way I think you may have left the water running you had better go check.:rolleyes:
 
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