Curious - what is Sabbath mode on your stove? does it have to do with the ignition system or heat in a quiet and reverential style? Really not getting an idea of what it could be...
OH Google: http://www.wired.com/wired/archive/12.11/kosher.html
" A retired helicopter engineer who is himself Orthodox, Ottensoser teaches Sabbath law to technical teams at companies like General Electric, Electrolux, and Viking. His job: to guide them in building electronic brains and mechanical guts that are Sabbath-compliant. Ottensoser works for Star-K, a nonprofit that certifies food products as kosher. Of several hundred kosher agencies in the world, Star-K is the only one that certifies technology, and Ottensoser is the firm's only appliance consultant. That makes him the world's lone kosher geek, the man tasked with certifying that the movement of every electron in an appliance is sanctioned by God.
Since he was hired seven years ago, Ottensoser has helped nine companies design Sabbath modes for more than 300 types of ovens and stoves, and dozens of refrigerators. When the feature is enabled, lights stay off and displays are blank; tones are silenced, fans stilled, compressors slowed. In a kosher fridge, there's no light, no automatic icemaker, no cold-water dispenser, no warning alarm for spoiled food, no temperature readout. Basically, Ottensoser converts your fancy - and expensive - appliance into the one your grandma bought after World War II.
One of the hardest
parts of Ottensoser's job is explaining to engineers the intricacies of Jewish law. He starts by focusing on the concept of indirect action. Sabbath law prohibits Jews from performing actions that cause a direct reaction; that would qualify as forbidden work. But indirect reactions are, well, kosher. In Hebrew, this concept is called the gramma. There are two types of grammas, Ottensoser tells me. Say you hit a light switch, but it doesn't come on immediately - that's a time delay, a time gramma. There's also a gramma of mechanical indirectness, like a Rube Goldberg contraption in which a mouse turns a wheel that swings a hammer that turns a key that launches a rocket. You can't claim the mouse actually launches the rocket.
Ottensoser gets manufacturers to build the easier time gramma into their products. Rabbis differ on how much of a delay is required; the Star-K rabbinical authority, Moshe Heinemann, authorizes a 5-second lag. To be on the safe side, Ottensoser increased the delay to 15 seconds and a random wait of as much as 10 seconds. Why? "An indirect action is one where you can't predict what's going to happen," he says".