סימן קלט סעיף ט
הַנֵּרוֹת, יִהְיוּ בְּשׁוּרָה אַחַת בְּשָׁוֶה, לֹא אֶחָד גָּבוֹהַּ וְאֶחָד נָמוּךְ. וְיִהְיֶה הֶפְסֵק בֵּין נֵר לְנֵר, שֶׁלֹּא יִתְקָרֵב הַלַהַב שֶׁל זֶה לָזֶה וְיִהְיֶה כְּמוֹ מְדוּרָה. וּבְנֵרוֹת שֶׁל שַעֲוָה, יִהְיֶה הֶפְסֵק, שֶׁלֹּא יִתְחַמֵּם זֶה מִזֶּה וְתִטֹּף הַשַּׁעֲוָה וְיִתְקַלְקָלו. מִלֵּא קְעָרָה שֶׁמֶן וְהִקִּיפָּהּ פְּתִילוֹת, אִם כָּפָה עָלֶיהָ כְּלִי, כָּל פְּתִילָה עוֹלָה בִּשְׁבִיל נֵר אֶחָד. לֹא כָּפָה עָלֶיהָ כְּלִי, אֲפִלוּ לְנֵר אֶחָד, אֵינָהּ עוֹלָה, לְפִי שֶׁהִיא כִּמְדוּרָה. נֵר שֶׁיֶשׁ לוֹ שְׁנֵי פִּיוֹת אוֹ יוֹתֵר, לֹא יַדְלִיקוּ בוֹ שְנַיִם אֲפִלוּ בַּלַיְלָה הָרִאשׁוֹן, מִשּׁוּם דְּלֵיכָּא הֶכֵּר כַּמָּה נֵרוֹת מַדְלִיקִין.
The lights should be placed in an even row; one should not be higher than the other. Space should be left between the lights,6The space should be the width of a finger. (Mishnah Berurah 671:18) so that the flames will not merge and look like a torch. Wax candles should be separated,6The space should be the width of a finger. (Mishnah Berurah 671:18) so they will not become heated from each other and cause the wax to melt, and become spoiled. If you fill a dish with oil and put wicks around it, and you place a [perforated] cover on it, each wick counts as a separate light.7This is true only when the cover was in place before the wicks were lit but if they were lit and then covered, they must be extinguished, covered and then relit. (Ibid 671:13) If you did not place such a cover on it, it does not even count as one light, because it resembles a torch. A lamp that has two or more branches should not be kindled by two persons, even on the first night, because there is no way to tell how many candles were lit [for that night].8Mishnah Berurah comments that this is true when there are only two branches in the Menorah. Our Menorohs, however, have eight branches and may be used simultaneously by two persons, each lighting at opposite ends. (Ibid 671:12)
תנא דבי אליהו כל השונה הלכות בכל יום מובטח לו שהוא בן העולם הבא שנאמר הליכות עולם לו אל תקרי הליכות אלא הלכות (נדה ע"ג.)