The heat lamp is suppose to be on all the time, until the weather is warmer or seven weeks old. I wouldn't use it though if you think it's a fire hazard. I don't use heat lamps any longer, but use the momma cave with heating pad system. There's a thread about it. No danger of fire, and the poultry like it better. Also, minimal pasty butt. It mimics being under a warm mom. It' a myth that chicks and ducklings have to be kept super warm 24/7. In nature that doesn't happen.Happy Mother's Day to all. More egg death.! No development at all, well got the lamp on the dog house, it's cutting it close have to watch it closely around birds, question because it so close. Do I have to use it all the time. I like just to youse it at night or does it have to be on 24/7. They still have the one over food bowl and water dish,[/URL]