Home About Us the Rabbis Contact Us

what's new on Revach
Motza'ei Shabbos Dress Code, To Change or Not to Change

Leil HaSeder Alone in The Shadow of Corona

Stopping Corona: Overwhelmed With Eitzos?

Parshas Tzav: Rabbeinu Bachaye - Covering the Shame of Sinners

Parshas Pinchas: Rav Yehonoson Eibshitz - Where did Zimri the Great Tzaddik go Wrong?
[view all questions in this category]

Section: Questions   Category: Halacha
Halacha - solution to kol koreh on Shabbos-mode ovens
Submitted by anonymous  Answered by Rav Peretz Moncharsh

I'm not going to publicly take sides on a machlokes between Gedolei HaDor, but I will point out that Reb Shlomo Zalman Auerbach zatzal clearly would have agreed with Rav Heineman yblc and permitted. There is a very basic disagreement between Reb Shlomo Zalman zatzal and Reb Elyashiv yblc on the definition of grama, whether a machine designed to work through grama still has the heter of grama. My understanding of the "tweaker" is that it does not resolve the main grama issue, only the side problem of pushing buttons. Therefore, while someone who conducts himself according to the psak of Rav Heineman may gain an added benefit by installing the "tweaker", I don't see how someone who follows Rav Elyashiv's psak could rely on it.

posted:2008-08-03 05:14:58

printable version     email to a friend

Visitor Comments: 2

Rabbi Peretz Moncharsh, 2008-09-15 04:14:52
The idea of using the tweaker to maintain the current state of the oven is clever and should solve the issue of grama. I didn't see the letters from the various Rabbonim who forbade the ovens, but my understanding is that at least one of the considerations is that allowing the adjustment of an oven on Yom Tov would create a breach in the public perception of Kedushas Yom Tov and could open a Pandora's box of potential future heterim. As the Mishna in Avos exhorts Chachomim to make a "fence", it is blear that the Gedolim have the authority to forbid something that is technically permitted if they feel it could lead to a "slippery slope". Since this is more a judgment call than a dry Halachic sheila, I am not prepared to voice a personal opinion on this issue.
Anonymous, 2008-08-30 20:40:57
Dear Rav Moncharsh,

If I use the Tweaker's indicator light so that I only extend the current state of whether it is calling for heat or not -- raising the effective temperature only when it is calling for heat, and only lowering the temperature when it is cooling down -- does that avoid the grama?

Would that change anything for someone following Rav Elyashiv's psak?

I do not fully understand the issur letter of Rav Shlomo Miller of Toronto or the Kol Koreh by Rav Shternbuch of Yerushalayim and I have no way to better understand their concerns.

I think I understand concerns with 1) pressing button switches, since it creates a circuit, 2) programming a new temperature, since it might be finishing something, and 3) doing something that causes the oven to call for heat might be creating a new flame.

Is this accurate? Are there other concerns?

Does Rav Elyashiv's psak identify other concerns?

Would someone who adjusted the manual thermostat in an old stove violate any of the concerns?

My old stove didn't have a pilot light and I was taught its temperature knob could be adjusted on Yom Tov.

I basically want to know if I can keep doing what I have always done.
Send Your Comments
Name optional
Display my name?
Yes   No
EMAIL optional
Your email address is kept private.
COMMENTS required
    Most Viewed Lists
  1. "Zissen" Pesach
  2. Toivel Hot water Urn
  3. Bracha for bANANAS
  4. sprinkler on Shabbos clock
  5. candle lighting
    Last Viewed
  1. solution to kol koreh on Shabbos-mode ovens
  2. bracha on twix
  3. women performing
  4. Shabbos
  5. Different size challos