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The BURNHAM 10228403 is a 6-inch vent damper assembly designed for use in residential and light commercial gas-fired boiler systems. The vent damper installs in the flue vent pipe between the boiler and the chimney connector, automatically closing the flue when the burner is off to reduce standby heat loss and improve overall system efficiency. At 4 pounds, it is a compact, purpose-built component sized for 6-inch vent pipe. Installation is typically performed by a licensed HVAC technician or plumber as part of a boiler service, replacement, or new installation project.
This vent damper assembly is sized for 6-inch vent pipe and is suited for residential gas-fired boiler applications where automatic flue damper control is required. It is intended as a direct replacement for systems originally equipped with a BURNHAM factory vent damper of the same pipe diameter. Consult the boiler manufacturer documentation to confirm vent pipe diameter and damper actuator compatibility before ordering.
Designed as an OEM-style replacement vent damper assembly for BURNHAM gas-fired boiler systems equipped with 6-inch vent pipe connections. Confirm vent pipe diameter and actuator wiring configuration against the original boiler documentation before installation.
Installation should be performed by a licensed HVAC technician or plumber familiar with venting requirements under local mechanical codes and the IFGC. Shut down the boiler and allow the flue to cool completely before removing the existing damper assembly. Verify that low-voltage actuator wiring connections match the boiler control circuit before restoring power. Do not operate the boiler with the vent damper disconnected or in a manually held-open position outside of a controlled test procedure.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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