If you have electric in your barn, you can brood them right in the same pen they will be living in/out of.
do this. Meaties in the house might work for a week or so, but trust me, you'll want them out before much longer than that.
I have chicks in a spare room. Not meaties.. though I DID just hatch two CX crossed with Barred Rock this morning!
They look EXACTLY like CX day olds. I will get some pictures when I return home. Guess I have to be careful who I sell hatching eggs too, because the eggs were marked as Barred Rock. I did not think I had any in this batch.
If you do keep meat chicks in the house, do it somewhere in the house that is not often frequented or used for other purposes and has a door you can close so the dust (and smell) doesn't spread...
You can't do deep litter in the house (it needs ventilation to work out right). Bedding will need to be changed frequently.
My brooder in the spare room (aka chick/hatch room) is 5 x 3 feet. I usually only keep them in there for a couple week max. I sell them out of this room. I can't have people with chickens going to my barn to get chicks. This is the safest way for my flock, and the easiest for me to tend to. The room is only used for hatching and brooding chicks. I don't have furniture to worry about.