I notice you have your water in the "cold room". Be very careful that your chicks are not sitting under the heat starving and dehydrating themselves to death. I try to keep access to food and water within reach regardless of where the chicks feel comfortable.
Also, be prepared to build a bigger brooder if you intend to hold your birds in the house for 6 or 8 weeks! They grow exponentially within a very short time!
BTW... It's nice to see another guy on here enjoying chicken-keeping. Seems like this is a very female-dominated board! lol