Q. A yeshiva bachur who is staying in yeshiva for Shabbos Chanuka but eating as a guest elsewhere where should he light? Can he light in the dining room in the same building where all other bachurim light even without eating there?
How about if one who is invited Shabbos Chanuka to a friend’s simcha and will be eating with them at the night seuda, while he will be sleeping with another family and eating the day’s seuda in the shul’s banquet hall, where should he light the Chanuka menorah?

A. Remah (O.H. 677: 1) rules that in our times one lights usually in the place where one eats.
On question 2475 we wrote: “Horav Shlomo Miller’s Shlit’a opinion is that he should light at his main host, which is baal-simcha, and provider of the Shabbos Friday-night seuda.

The reason is that his overnight stay at an other’s family home, was likely arranged by his host and they are just being their shluchim or representatives. Had his host had the capabilities, he would have invited them to stay in his own home.
He can light his own menorah or contribute some money to share with their host.

Rabbi A. Bartfeld as revised by Horav Dovid Pam, Horav Aharon Miller and Horav Chanoch Ehrentreu Shlit’a