I might be the only person on the planet that feels this way, but I HATE MY BRINSEA. I saved for sure 12, 4 more are in critical condition in ICU
sorry to hear that and good luck to the little ones.
if I were you I wouldn't use that incubator any more. it is too much stress and birds with poor health. but you are not me and you will do whatever you like.
This is prototype one. It is the leg of one of Gary's thermal undies and some wool scraps.