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My modern whirlpool electric oven take forever (about 20min) to heat-up to 200C. This seems similar to other electric ovens I have used in Ireland.

Hoever, when visiting my mother in law in the USA, I noticed that her very old(20+ years) electric oven heats up very quickly, about 5 minutes.

Is this rapid heat-up time typical of american ovens or is there something special about hers?

Why does my oven heat-up so slowly in comparison?

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1  
Is that measuring with a thermometer or waiting until the oven says it is ready? I have noticed that my newer oven seems to reach the temp and hold it for a bit while the interior surfaces heat up- instead of just the air. Alternatively is the older oven a higher wattage? –  Sobachatina May 9 '12 at 15:14
    
There are two ovens in my house. A newer oven that might take up to 30 minutes to heat up to 375 F(190.5 C). While my old oven only takes like 10 minutes. I was kind of curious too. –  Jay May 9 '12 at 15:42
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Perhaps newer ovens have to conform to relatively recently introduced safety standards that effect the speed they heat up at. –  ElendilTheTall May 9 '12 at 16:30
    
I noticed that my (old) oven heats up by just putting on the grill. So when putting something in the oven before the oven is reached the right temprature, it will get toasted. I noticed that my mom's oven does not give that effect when heating up. Maybe new ovens use an other way than just putting on the grill until the right temperature is reached? Just guessing.. –  Lotte Laat May 9 '12 at 18:07
    
@Elendil- That was my thought as well. –  Sobachatina May 9 '12 at 18:12

1 Answer 1

up vote 2 down vote accepted

There is a large collection or reasons, some are:

  1. Differences in makes and models

  2. Modern form over function problems

  3. Crap EU standards (EN 60350 etc) that limit the amount of power a element can use. It's something like <= 0.25 W per cm2, and a typical domestic over is around 1100 cm2

  4. For same standards the typical total KW/h of modern over is 3.5 KW/h, where ovens of twenty years ago where around 4.5 KW/h\

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