We took the industry's best-selling brooder and made it even better with a stainless steel burner for more corrosion protection. The Gro40 brooder puts a fuel-efficient 40,000 BTUs directly on the house floor. Ignition options include direct spark and pilot light with individual and zone control models available. Choose Gro40 brooders in either natural gas or propane to expand or retrofit your current poultry heating applications.