It is small like a 24 x 24 yeah i am adding more ventilation to it to see if it holds a correct temp i would have bought one but shes in her second week and it will take to long for it to get here... Well I left it on all night last night and it is still running and the temp stayed at 86 degrees but the humidity was only 50-55.. thinking about putting some perlite in the containers as if I had eggs in it to see what it does then.... But anyways I added more water to see if it would raise the humidity and the humidity now is 50 and the temp is a steady 84-85 ... But i have a fan running to circulate the heat and air... Well it is 11.13pm and I had the incubator running all day, after I added the water I went away and now it is stable 83-84 and humidity 80.. I think that is a good read.... What you think?