So this is only my second batch of baby chicks. Last time we did them in April in the house... and I will never go through that again! The chick dust made me crazy/allergic. So, I've decided to raise this next batch in the shed. And the next batch of 25 chicks is arriving next week. Unfortunately, the shed's not really insulated. It's draft-free, but it does get to similar temperatures as outside. Lately, the lows have been around 28-32˚F. My main question is: if I have a 250W red heat lamp on all the time, will it be warm enough in there for the little guys? My setup is a cardboard perimeter with 6in-thick pine shavings. Would placing bales of straw around the perimeter help insulate a little bit so that it stays warmer in there? Another thought: if I do have to raise them indoors, what age are they okay to be in cold weather (below freezing)? Thanks for any advice!