This follows the same law as Shabbos in which the law is that one may lengthen the current status of the timer but not shorten it. However according to those Poskim[1] who permit Gerama on Yom Tov, seemingly they would allow even shortening the current activity due to Gram Havara. […]
May one indirectly cause a flame to ignite on Yom Tov [Gram Havarah]?
Some Poskim[1] rule it is permitted to do so. Other Poskim[2] rule it is forbidden. Some[3] write that according to all one may not perform Gram Havarah on a steady basis. One may however be lenient to do so through a gentile.[4] Examples: May one enter a plug into a […]
Grama and Pesik Reishei on Yom Tov
May one indirectly cause a flame to ignite on Yom Tov [Gram Havarah]? Some Poskim[1] rule it is permitted to do so. Other Poskim[2] rule it is forbidden. Some[3] write that according to all one may not perform Gram Havarah on a steady basis. One may however be lenient to […]
Electricity on Yom Tov:
It is forbidden to use electricity on Yom Tov just as is the law on Shabbos.[1] May one raise the temperature of an electric oven or stove on Yom Tov?[2] No, unless one knows for certain that doing so will not extinguish any current currents and will not ignite […]
May one light a match by placing it by a flame on Yom Tov?
Yes. Bookmark
May one strike a match on Yom Tov?
No. Bookmark
May one burn the sides of a Matzah on Yom Tov for the sake of making it a Shaleim?
It is disputed amongst Poskim[1] whether one may do so on Yom Tov itself. Practically, many are accustomed to being lenient to burn the edges of the Matzah on Yom Tov for the sake of making it a Shaleim.[2] Those who do so must beware not to extinguish the fire […]
May one ask a child on Yom Tov to ignite a flame?
Some Poskim[1] rule that in a time of need one may ask a child that has not reached the age of Chinuch, to light a flame for the sake of Simchas Yom Tov. _____________________________ [1] Beir Moshe 8:166; Piskeiy Teshuvos 502:1 Bookmark
If one was unable to light a flame before Yom Tov, or if one’s flame extinguished on Yom may one ignite a flame on Yom Tov?
No.[1] _____________________________ [1] The reason: As making a spark is considered a completely new Melacha , and is similar to Tikkun Keli which was not permitted to be performed even for the sake of food. [Minchas Yitzchak ibid] Bookmark
May one light the flame of a modern stove on Yom Tov which contains a safety feature to prevent the gas from being on when there is no flame?
Yes.[1] _____________________________ [1] The reason: As a) It is Gerama, b) of a rabbinical prohibition, c) one has no intent to do so, d) its Machshirei Ochel Nefesh which could not be done beforehand. [Poskim ibid] Bookmark
