I can't believe how many plastic tote brooders are recommended - they literally seem to be everywhere on Pinterest, bloggers recommend them etc. And for us it was a nightmare. It definitely was not clear to me that the chicks would be fine with indoor room temperatures and just needed the Brinsea as a place to go for warmth when needed. This whole 95 degrees and 5 degrees less per week thing was definitely a stumbling point for me. Thing was, I had a thermometer in the brooder and it was registering in the 80-85 degree range but was still too hot for the chicks overall. I definitely think it was the lack of ventilation - because in the brooding room at Jersey Chickens it was tropical hot - and those birds all seemed to be doing ok.
So much more learning curve than I expected - and I truly felt I had taken the time to learn and understand before getting chicks. Thanks for your post - I appreciate knowing I'm not the only one who learned this lesson the hard way.
You clearly gave it the old college try, learning before buying.
The learning curve isn't nearly as steep for those of us who grew up on farms with all manner of livestock. Even though chicken husbandry is second nature, I'm constantly learning. I've been teaching poultry classes for almost 10 years at community colleges, poultry conferences, slow food, botanical garden, humane society, gateway greening, etc.. As I continue to learn, I've rewritten my booklet handouts several times because I no longer believe some of the things I noted just a decade ago.
I think the totes are recommended with the assumption that they're easily cleaned and reusable. But, overheating, insufficient ventilation, slick bottom and inability to expand are the drawbacks.
Most of what I do with chicks is to try and replicate what a mother hen does. She can't heat all the ambient air to 90F. She provides a warm up spot under her and most of the time the chicks are running around regardless of temperature. If they get chilled, they run under her for a bit and then back to running around in the cold fresh air and sunlight. That is much healthier for them and I believe they feather out faster.
When brooding large numbers of chicks (50-100), I use an Ohio brooder with ceramic emitters in an outbuilding. That provides a warm spot and lots of cool space around the brooder. I now mostly brood smaller numbers (5-20). For that I use a Premier1 heat plate in cardboard boxes. Large moving boxes from Lowe's are about $1.50 and an ideal size. If the conditions aren't conducive for moving them outside in a timely manner, you can just add boxes as needed by cutting doorways between them.
When that batch of chicks is done, you can compost the boxes - feces, bedding and all.