WOW! This a a great job and no smell in the house! Way to go!If you put your brooder outside (granted its predator proof) you will be getting them used to the environment and they will be more resilient chickens in the long run. This is the best part of the year to brood chickens outdoors. After the first week I put mine outdoors. I have 9 Rhode Island Red chicks and 9 Dominique chicks that are 2 weeks old and have been in an outdoor brooder with a heat lamp for a week. I have the lamp 36 inches above them and the space that they have to run is 3x5 and 36 inches tall. They are happy and healthy and they will self adjust to the temperature as long as you have enough room for them to get away from the lamp if they need to. Given plenty of room the chicks will go farther away from the lamp if they are too hot or closer to the lamp if they are too cold. Helps keep them from huddling so much. Good luck with your first chicks. I started this hobby for me and my children to have a few chickens and now we have 52. Its a fun hobby and very educational for all of us.
This is my outdoor brooder 3 weeks ago when my plymouth rock chicks were 3 weeks
WO