Thread: gas oven
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Alan
 
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Default gas oven

Thanks for your advise:
my gas oven heat up to the tempreture according to the preset heat,but
sometimes when it overshot,the gas burner still fire
and never went down,i wonder is the thermostat still in proper function?
where can find the thermostat from the oven,where can i get replacement
parts if it is not working.
there is no upper burner(upper fire)for this gas oven,can i make one for
myself?how to do it and where can i get parts?
any web site can teach to diy a gas oven?
thanks

"Jenn Ridley" > wrote in message
...
> "Alan" > wrote:
>
> >i'd like to know how's the gas oven works?any web site or someone could

give me the infos?
> >thanks

>
> A gas oven works by burning natural gas (or propane, if it's a propane
> stove).
>
> When you turn on the oven, a valve opens, and the gas starts flowing.
> An electric ignitor lights the gas. A thermostat tracks the
> temperature, and when it gets high, the gas turns off, and when the
> temperature gets low, the gas turns back on again (just like a
> furnace).
>
> Some older gas ovens have a pilot light instead of an electric ignitor
> (a small flame is always burning below the oven floor, and when the
> gas is turned on, it ignites). Some really old gas ovens don't have
> any kind of internal ignitor at all, and need to be lit with a match.
>
> jenn
> --
> Jenn Ridley
>



"barry" > wrote in message
et...
Pretty simple device.

There is a piece in the oven that measures temperature, call it a
thermometer.
There is a connection between the thermometer and the gas supply, the gas
valve.
There is a temperature control knob on the front.
There is an on-off method built into the oven. This is controlled by the
control mechanism.

Here's how it works.

You set the temperature and turn the oven on. Say you set it to 350F.

The gas valve opens and the gas ignites, whether by pilot light,
electronic ignition or match.

The oven burns some gas and the oven heats.

As the oven heats, the oven thermometer measures the temperature and
reports that back to the control mechanism.

The control mechanism is set to respond to a range around the temperature
you set. It will go on at a temperature slightly below what you set and off
at a temperature slightly above the temperature you set. In this instance,
let's say that it is set at 10F above and below the temperature on the knob.

As the oven heats, the thermocouple reads the temperature. Then the
temperature gets to 350 + 10F, it will stop heating. As the oven cools, it
will continue reading the temperature. When the temperature gets to 350 -
10F, it will turn back on and heat until it hits 350 + 10F. And so and so
on and so on.

The oven is never really "at" 350F except in passing through on the way up
and down, but it averages 350F over the course of the baking period.

Barry