Yes, i think just a hatcher. Do you think if i went with no fan--just still air, it would be a big deal? I don't think so, because by the lockdown babies can tolerate more uneven temps. than the embryos can during the first 18 days. Of course, if I just use a light bulb and thermometer, etc, I will surely plan to get a stable temp and good humidity, but i still think i could get by pretty darn good with still air just for three days. do you think??