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Gas-Fired Equipment Vent Dampers

Gas-Fired Equipment Vent Dampers

Shop volume control and vent dampers for gas-fired furnaces, boilers, and water heaters. Furnace Part Source carries Field Controls gas vent dampers and related control components by size and voltage.

Use the product list below to find the correct vent damper by part number, size, or equipment model. Always confirm the vent pipe size, voltage, and whether a wiring harness is included before ordering to help avoid fitment issues.

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    Field Controls Part #46487601

    Field Controls

    MSRP: $477.03
    Now: $368.62
    Field Controls 12" GVD-12 VentDamperLessHarness ***This Item is not available for the $12.50 Shipping special***
    MSRP: $477.03
    Now: $368.62
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    Field Controls Part #46487501

    Field Controls

    MSRP: $446.51
    Now: $345.03
    Field Controls 10" GVD-10 VentDamperLessHarness ***This Item is not available for the $12.50 Shipping special***
    MSRP: $446.51
    Now: $345.03
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    Field Controls Part #46487401

    Field Controls

    MSRP: $428.52
    Now: $331.13
    Field Controls 9" GVD-9 VentDamperLessHarness; Comes with technical sheet; All Parts Backed by a One Year Manufacturer Warranty; ***This Item is not available for the $12.50 Shipping special***
    MSRP: $428.52
    Now: $331.13
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    Field Controls Part #46487301

    Field Controls

    MSRP: $380.24
    Now: $293.82
    Field Controls 8" GVD-8 VentDamperLessHarness; Comes with a technical sheet; ***This Item is not available for the $12.50 Shipping special***
    MSRP: $380.24
    Now: $293.82
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    Field Controls Part #46487201

    Field Controls

    MSRP: $323.50
    Now: $249.98
    Field Controls 7" GVD-7 VentDamperLessHarness    FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order...
    MSRP: $323.50
    Now: $249.98
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    Field Controls 46487101 (Replaces 412-706-040) Gas Vent Damper without Harness

    Field Controls

    MSRP: $311.31
    Now: $240.55
    Field Controls 46487101 (Replaces 412-706-040) Gas Vent Damper without Harness 24Vac
    MSRP: $311.31
    Now: $240.55
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    Field Controls Part 46486901

    Field Controls

    MSRP: $293.62
    Now: $226.89
    Field Controls 4" GVD-4 VentDamperLessHarness ***This Item is not available for the $12.50 Shipping special***
    MSRP: $293.62
    Now: $226.89
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    Fenwal 35-715912-501 Control

    Fenwal

    MSRP: $336.35
    Now: $254.81
    Fenwal 35-715912-501 Control 120V 5 SEC PREPURGE 4 TFI This item must be ordered in multiples of 4.   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business...
    MSRP: $336.35
    Now: $254.81
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Gas-Fired Equipment Vent Dampers

A vent damper regulates the flow of combustion gases through the flue when a gas-fired furnace, boiler, or water heater is not actively firing, helping reduce standby heat loss through the chimney. Volume control dampers help manage draft and airflow in the venting system.

Furnace Part Source carries a range of gas vent dampers and volume control components for residential and light-commercial gas-fired heating equipment.

Common Vent Damper Parts We Carry

Common replacement parts in this category include:

  • Gas vent dampers in a range of pipe diameters for different equipment sizes.
  • Vent dampers without harness for units where the wiring harness is replaced separately or already in place.
  • Related control components used with vent damper systems.

How to Find the Right Vent Damper

Before ordering, check the equipment data plate and the existing vent damper for the pipe diameter, part number, and voltage. Vent dampers are sized to match the vent pipe diameter, so measure carefully before ordering.

For best fit, compare:

  • Original vent damper part number
  • Vent pipe diameter
  • Voltage, typically 24Vac
  • Whether a wiring harness is included or needed separately

Some vent dampers ship with shipping restrictions due to size; check the product listing for shipping details before ordering.

Vent Dampers From Leading HVAC Brands

Our catalog includes gas vent dampers from Field Controls, a leading manufacturer of venting and combustion-air control equipment for residential and light-commercial gas-fired systems.

Need Help Matching a Vent Damper?

Not sure which vent damper you need? Use the vent pipe diameter and part number from your existing damper to narrow the search, or contact Furnace Part Source for help identifying the correct replacement.

Vent Damper FAQs

What does a vent damper do?

A vent damper closes the flue when the furnace or boiler is not firing, which helps reduce heat loss up the chimney during standby periods and improve overall system efficiency.

How do I know what size vent damper I need?

Measure the diameter of the vent pipe where the damper will be installed, and match it to the original damper's part number and size specification.

Does the vent damper come with a wiring harness?

Some vent dampers are sold without a harness, either because the harness is reused or purchased separately. Check the product listing to confirm what is included.

Can I install a vent damper myself?

Vent damper installation involves gas-fired combustion equipment and venting, so installation should be performed by a qualified HVAC technician in accordance with local codes.