Hello! I'm picking up my first batch of chicks next weekend. I've got the brooder set up in my garage (Rubbermaid container) and I've been trying to get an accurate temperature reading in the brooder. My lamp comes with a warning to keep the bulb 36 inches from combustibles. I'm assuming that pine shavings are combustibles. Is it possible to lower the lamp, or should I really keep it 36 inches away from the bedding? I have a 250w red bulb, but the brooder temperature didn't seem to be much warmer than room temperature. Thanks in advance!