First time Brooder in Coop

[JBarnhart]

For the first time my new chicks won't be spending their first weeks in my house. Ill be building a brooder box in my existing run. They will be separated from the larger hens. I feel like I have to rethink how I keep them warm. Please any advice appreciated!

 

[DobieLover]

How old are they? Where are you located and what is the weather like?
Please post pictures of your setup.

 

[JBarnhart]

They will be day old chicks. Easter Eggers & Cuckoo Marans. I live outside Kansas City. It's 80's to 90 degrees & very humid. Ill post a picture after I'm done building the brooder box.

 

[rosemarythyme]

Keeping them warm won't be an issue in those temperatures.

This is my brooder in the run: https://www.backyardchickens.com/articles/short-on-time-recycle-a-prefab-brooder.73985/ - I raise chicks out there between mid 40 to mid 60s.