I just heard from my chick source, and I am meeting her up the road a piece tomorrow afternoon to pick up 5 chicks. She has had some fertility issues with her RIR layers, so we have been waiting a little longer than any of us figured, but that is just fine.
Here is my brooder, and I am looking comments on any problems that anyone sees with this setup.
I took a rubbermaid tub and drilled 1/4" holes along both sides, about three inches off of the bottom to allow for pine chip bedding. I hope that will be sufficient to turn the air over by natural convection from the heat lamp, but if I need more holes the drill is handy. When I tested this, once the bedding warms up, you can feel a distinct current of warm air coming up around the lamp that smells like fresh pine. In my view that means it is drawing air in through those side holes and should be enough constant fresh air to keep things under control.
I even have a second tub exactly like this one that I can switch the chickies into while I clean out their house, give it a good scrub and set it back up clean for them again. The compost pile needs a shot of chicken poop to keep it hot...
I have a 60 watt incandescent lightbulb (NOT a heatlamp) in the brooder hood. With it right down near the wire like this, the temperature is just at 98 degrees as measured by that small thermometer. I experimented and the temperature is very controllable simply by raising and lowering the hood. The other end is warm but much cooler than the lighted end so the chicks should be able to spread out and stay warm without overheating.
I've seen here at BYC how people put marbles in their water dishes to prevent drownings. The rim on this waterer seemed pretty deep, and my wife had a bag of clean pebbles (never been used and washed anyway...) she uses for houseplants; they fit well and the water depth will be shallow all around. The feeder can be raised up as the chooks grow.
My intention is to keep the brooder in the house for a while where the temperature at night is more stable, and so I can keep a close watch on everyone. Eventually when they start growing feathers we will see about where they go next, perhaps into the garage, perhaps I can turn the coop into a brooder house with a lamp inside...we will see.
If anyone sees anything wrong with this setup, please let me know, otherwise I'm full speed ahead with what we have here...
Thanks!