The Ultra-Low NOx Heavy-Duty Gas BCL Series 200 complies with California SCAQMD Rule 1146.2 and other air quality management districts with similar NOX emission requirements of 14 ng/J or 20 ppm. The BCL series provides outstanding performance and maximum installation flexibility for both new construction and replacement applications.Fan Assisted CombustionHeavy Gauge Steel JacketGlasslined Tank (Price subject to change without notice. Check stock before order)