or improper flue drafting which forces the flame out of the burner transition toward the switch

making it a versatile choice for contractors

specific industrial-grade B-series belts are typically preferred

it is factory-configured for intermittent pilot ignition (IP) but includes the necessary conversion hardware for hot surface ignition (HSI) and direct spark ignition (DSI) systems

Lau 00954816 Blower Wheel 321894-708 or improper flue drafting whichThe Lau 00954816 Blower Wheel, also identified as Model A15 9A, is a heavy duty double inlet belt drive blower wheel engineered for high demand air handling applications. This 15" diameter by 9 1 2" wide wheel features Preslok construction, where 51 blades are mechanically locked into two hubs with a center disc, ensuring structural integrity under high torque. With a 1" bore and a standard 1 4" x 1 8" keyway, this galvanized steel centrifugal wheel