First of all I didn't know people from Mass. even said "ducky" so you learn something new everyday.

There will be three issues you will need to deal with in your closet once you start growing and adequate ventilation will address all three things....any of the three not being under control then your plants will grow poorly....if at all. Those three issues will be: heat, humidity, and fresh air. Your closet grow will depend upon you to make sure these things are not out of control.....or you'll only THINK you've known desperation.