scott wrote:

> Ermm, actually it does have a thermostat.  Simply tested by wiggling the 
> knob while the oven is cold and observing that the flame size doesn't 
> change.

Interesting. On my oven, it does.

[There is some kind of sensor that detects whether the gas has ignited. 
When you turn the oven on, it lets in a tiny amount of gas and ignites 
it. Then, after a few seconds, the flame suddenly grows to full size. 
Thereafter it remains at that size until you turn the oven off.]

> If it didn't have a thermostat then to set the temperature at eg 200 
> degrees (I don't know what gas mark that is) the flame size would be so 
> small it would take 10 hours to get to anywhere near 200 degrees.

That's an interesting theory.

OOC, any idea how much energy it takes to warm up 0.25 m^2 of air from 

methane...)

-- 
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*

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