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Heatco NBK-20691 1-Speed Draft Inducer 115V

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4  Reviews Add Your Review
Special Price $617.58 Regular Price $685.52
In stock
SKU
NBK-20691

The Heatco NBK-20691 Draft Inducer is a key component for certain HVAC units, especially gas-fired furnaces and boilers. It operates through an electric motor and fan to safely remove combustion gases and contaminants from the appliance while simultaneously sucking in fresh air for its optimum operation. This approach is essential for maintaining optimal ventilation while decreasing the building up of hazardous pollutants in your living area. The "115V" mark indicates that it runs on conventional 115-volt residence electrical current, while "1 Spd" indicates it has just one speed of operation. Upgrading an outdated draft inducer with the NBK-20691 ensures that your gas-fired HVAC equipment works effectively and securely, encourages proper airflow, and helps to clean the interior environment.

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A draft inducer is a furnace airflow component that helps establish the draft required for combustion and exhaust movement. The Heatco NBK-20691 is a 1-speed draft inducer designed to support the movement of combustion gases through the furnace and designated venting pathway. Its 115V electrical specification identifies an important operating requirement for compatible equipment.

Draft Inducer Operation:
The Heatco NBK-20691 creates the mechanical draft required to move combustion gases through the furnace exhaust pathway. Its operation helps establish the airflow and pressure conditions needed during the heating cycle. The 1-speed design provides a consistent operating mode for equipment configured to use a fixed inducer speed.

Combustion and Exhaust Airflow:
The draft inducer works with the furnace controls, combustion components, and venting system to support exhaust movement during operation. The resulting airflow helps the heating equipment move combustion byproducts through the designated vent path as part of its normal operating sequence.

Replacement Guidelines:
Replacement may be appropriate when the existing draft inducer no longer operates reliably or no longer provides the required draft for combustion-gas movement. Before selecting a replacement, verify the original part number, 115V electrical requirement, 1-speed configuration, equipment model, and other applicable equipment requirements.

Common Failure Symptoms:

  • Draft inducer fails to start
  • Reduced combustion-gas exhaust movement
  • Unusual humming, rattling, or grinding noise
  • Intermittent inducer operation
  • Inducer stops operating during the heating cycle

Equipment Compatibility:
The Heatco NBK-20691 1-Speed Draft Inducer should be selected only after confirming that its part number and verified specifications match the original equipment requirements. Before purchasing, compare the existing component with the applicable manufacturer documentation to confirm compatibility.

Technical Specifications:
Part Identification:
Brand: Heatco
Part Number: NBK-20691
Part Type: Draft Inducer Assembly

Electrical:
Voltage: 115V

Mechanical:
Speed: 1 Speed

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Product Questions (7)
Customer Questions
What maintenance is required for the Heatco NBK-20691 Draft Inducer?

Inspect the inducer motor and fan for dust buildup and debris that may reduce airflow efficiency. Check electrical connections and mounting hardware for tightness to prevent vibration or failure. Listen for unusual noises that may indicate bearing wear or imbalance. Always disconnect power before servicing to ensure safety.

What are common issues with the Heatco NBK-20691 Draft Inducer?

  • Reduced airflow.
  • Unusual humming or rattling noises.
  • Failure to start or intermittent operation.
  • Overheating or tripped safety switches.

What does the Heatco NBK-20691 Draft Inducer do?

The NBK-20691 creates the mechanical draft needed to support combustion-gas movement through the furnace exhaust pathway during the heating cycle.

How does the 1-speed design affect the NBK-20691?

The 1-speed configuration identifies a fixed-speed operating arrangement for compatible equipment designed to use a single-speed draft inducer.

What signs may indicate that the NBK-20691 Draft Inducer needs replacement?

Failure to start, intermittent operation, unusual humming or grinding, loss of inducer operation during the heating cycle, or failure of the equipment to complete its normal operating cycle may indicate that replacement is needed.

Why is 115V important when selecting this draft inducer?

The NBK-20691 is specified for 115V operation, so the replacement should have an electrical requirement that matches the applicable heating equipment.

What should I verify before purchasing the NBK-20691?

Verify the existing part number, draft inducer configuration, 115V requirement, 1-speed configuration, equipment model, and other applicable equipment requirements.

Installation Steps

Step1: Turn off power to the furnace and lock out/tag out for safety.

Step2: Remove the access panel and disconnect wiring from the old draft inducer.

Step3: Unscrew and remove the old inducer, install the new 1-speed draft inducer in place.

Step4: Reconnect wiring, replace panel, restore power, and test for proper airflow and operation.