My husband and I are raising our first chickens and are still in the planning stage of our coop. Since we are hoping to add/rotate our flock, we are thinking about installing a brooder underneath one of the poop boards. Is 2hx2wx4L a good area for up to 6 chicks? Are there certain ways of heating the area better than others? We have young kids so the less the birds are in the house, the better.