GFK21B Fireplace Blower Fan Kit for Heatilator NBV3630I fireplace

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  • GFK21B Fireplace Blower for Heatilator NBV3630 Fireplace Insert
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Our GFK21B Fireplace Blower Fan Kit is designed for the Heatilator NBV3630I gas fireplace insert to circulate air around the firebox and enhance heat output. This complete fireplace blower kit offers a low cost solution to push heat created by the fireplace into your living space.

A speed control module with timer circuit is included with the blower kit which automatically turns the fan ON / OFF at preset times and is equipped with a Speed Button to provide a quiet airflow at the desired speeds. The timer circuit will delay fan operation; by automatically turning ON the fan 7 minutes after the main flame has been turned ON (After the fireplace has warmed up) and turning the fan OFF 12 minutes after the main flame has been turned OFF (After the fireplace has cooled down).

GFK21B Fireplace Blower Kit Installation Manual Instructions GFK21B Blower Kit Installation Instructions

Fireplace Blower Kit Includes

  • Blower
  • Speed Control Module with Timer Circuit by Skytech
  • Jumper and Ground Wires
  • Hardware and Adhesive Velcro Strips/Dampening Pad - (Easy to install plus reduces Vibration)
  • Installation Instructions
  • 1 Year Comprehensive Warranty on Blower
  • 2 Year Warranty on Control Module

Product Specifications

  • Dimensions in Inches: W: 8.01 x H: 3.6 x D: 4.27
  • Motor is equipped with Thermal Safety Switch
  • Bearing Construction Type: Ball Bearings
  • CFM: 120+
  • AMPS: 0.74
  • HZ: 60
  • Volts: 115
  • RPM: 3000 (1/2400 with load)
  • Rotation: CCW
  • Blower Wheel Dimensions: Width: 4.7in (120mm) Diameter: 2.56in (65mm)
  • Anti-Vibration Impellers & Vortex Regulation Tabs to provide a steady airflow

Product Benefits

  • This fireplace blower fan produces high airflow and is manufactured with quality parts and components
  • Increase Heating Potential of your gas fireplace insert with this hgih airflow blower fan
  • Simple wiring connections makes installation Quick and Easy

If you have had any custom work done to your gas fireplace insert, compare the dimensions listed with the clearance in your appliance to insure proper fit.

GFK21B Fireplace Blower Diagram GFK21B Fireplace Blower Diagram with Dimensions

This fireplace blower fan kit was Assembled & Tested in the Midwest which includes parts Manufactured in the USA. Industry Research & Design contributed to the manufacturing of this high quality aftermarket fireplace blower kit and is designed to meet the original equipment specifications. The instruction manual provided may not include specific information about your exact fireplace model, though we try to provide technical support in assisting you.

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Warranty Information

1 Year Comprehensive Warranty
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Additional Information

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4 Reviews

  • 5
    Gfk21b Blower fan kit used in a heatilator fireplace GNDC30

    Posted by Linda on 3rd Mar 2024

    I'm loving my new fireplace blowers. I have 2 fireplaces. The first one I had open space underneath because I had to change the gas regulator. I had taken the sticky tape protectors off as I had seen in a YouTube video, but it was more difficult to install because I kept getting it stuck on things working it into position. On the second one I left the sticky protectors in place and I was able to maneuver it into position, with the regulator and gas lines all hooked up. No problem, much easier. Once around all the obstacles and in position, I removed the sticky protectors and pushed it into position. I used a piece of dense foam under the motor to help hold the blower in a straight horizontal position, as it wants to tip to the side of the motor. I did find I could not adjust the fan speed when it was in the test position. Regardless of the fan speed I selected, it was always in the high position. Once the speed control module unit came on, seven minutes after the fire was activated, I could then select a fan speed for the blower. Once it was set, it held the fan speed on subsequent fire starting. I did get one remote, but I haven't installed it yet. I like the fact that some of the parts are manufactured in the USA.

  • 4
    GFK 21B Blower

    Posted by Charles W. on 20th Nov 2018

    Had to remove ignition valve input gas line to get blower to fit. Other than that, no problems.

  • 5
    Awesome kit!

    Posted by Unknown on 20th Oct 2016

    This kit was easy and quick to install. This blower produces a lot of air for its size. I would recommend to my friends and family. Actually I already have!

  • 5
    Fan Kit

    Posted by Unknown on 29th Oct 2014

    It was easy to order. Was easy to install. Works Great. It meets the product benefits 100%

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