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The Natural Philosopher[_2_] The Natural Philosopher[_2_] is offline
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Default Thermostat hysteresis

On 05/05/2021 18:27, NY wrote:
Anyone who has had a gas oven will be familiar with the concept of a
high gas mark (temperature) giving a higher power (gas flow) than a low
one. In other words, from cold, gas mark 9 followed by gas mark 4 when
it's up to temp will result in the oven getting up to the final
temperature of gas mark 4 quicker than gas mark 4 from the start: a gas
"regulo" controls both power and on/off cycling temperature. I presume
once the oven is at temp, it alternates between virtually off (just
enough to keep the burner alight) and full, in a similar way to an
electric oven, but when it's heating up from cold, the rate of heating
is controlled by the gas mark setting. I presume that's still the case;
we've always had an electric oven, but my parents have gas and I'm
basing my comments on how their oven behaved.


No oven I have ever encountered behaved like that


--
"Strange as it seems, no amount of learning can cure stupidity, and
higher education positively fortifies it."

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