You mentioned you have a heat lamp somewhere else - can you go grab that tomorrow morning and try setting that up instead of this heater? Also see about getting a thermometer and much larger box plus some sort of secure-but-ventilated top for the box (you may need to make one) because in about a week you will have chicks running around on the floor without something to keep them in. 8 chicks will need at least 4 sq ft of floor space by 2 weeks old, 8 sq ft by 4 weeks. Do you have a coop set up?
I'm confused as to if these are yours or your parents, but if they're your family's then they need to help you with getting this set up, if they're hoping for eggs later on.
I'm confused as to if these are yours or your parents, but if they're your family's then they need to help you with getting this set up, if they're hoping for eggs later on.