These gas brooders work great for customers rearing larger numbers of birds or for customers who need to heat larger spaces. Unit delivers vaiable, quiet heat from 17,000 to 30,00 BTUH enables continuous temperature sensing modulation. Accomodates 1,000-1,250 chick brooding area, burner is factory assembled for quick field installation. Canopy measures 34". We recommend unit installed by a licensed and trained gas technician. This comes in a Natural Gas or Propane type of brooder.