junebuggena
Crowing
If you have enough ventilation, any heat from a lamp or other source would just exit via the ventilation. Would be a waste of electricity. The key thing to remember regarding ventilation is that moisture and ammonia rise. Low vents draw in fresh air. High vents exhaust bad air. Birds should not be in the direct path of airflow, so careful consideration needs be given to where venting and roosts are positioned.