My chicks are in my garage which is under my house. Still too close to my home! It's been cold and raw, rainy all week. Out they go this weekend!!!! So looking forward to that!
Where are you brooding them? In your house? Shed? Garage? Coop? A lot depends on that. If not in the living space of your house, you will need a bit of a draft screen around the bottom, perhaps cardboard about 12" high and zip tied to the mesh. You will also need to cover it. By the time...
You only need a small area in your brooder that is heated. It's not healthy for the whole brooder to be warm. The bigger issue might be them scratching all of the savings out onto the floor.