This is a question with answer options. Goal: What should I do if I hear a train-like noise coming from my wood stove?

Which of the following methods is more reasonable for accomplishing this goal?

OPT:
+ Close the flue on the stove, leave the house, and call the fire department.;
+ Open the flue on the stove, remain in the house, and call the fire department;...I think the answer is
Close the flue on the stove, leave the house, and call the fire department.