it ensures precise fuel-to-air mixing and flame stabilization to maintain peak thermal efficiency

As a critical HVAC high limit sensor

OEM Standards: Explicitly designed as a drop-in replacement for P291-2503

Adjustable Time Delay: Integrated 1-10 minute timing knob allows contractors to fine-tune the system response and avoid short-cycling

Tjernlund Products DB-2 Duct Booster L99H008 it ensures precise fuel-to-air mixingProfessional grade airflow solutions require hardware that stands up to static pressure. The Tjernlund Products DB 2 Duct Booster is a high performance inline centrifugal fan designed to increase the delivery of conditioned air to poorly served branch ducts. Engineered for versatility, the DB 2 integrates into round ducts (5 to 8 inch) or rectangular ducts as shallow as 3. 25 inches. With a peak capacity of 275 CFM, this unit effectively overcomes the