GFK21B Fireplace Blower Fan Kit for Heatilator ND3630, ND3630I fireplace

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  • GFK21B Fireplace Blower for Heatilator ND3630, ND3630I Fireplace Insert
  • GFK21B Fireplace Blower Fan for Heatilator ND3630, ND3630I
  • GFK21B Fireplace Blower Motor for Heatilator ND3630, ND3630I
  • GFK21B Fireplace Blower Kit for Heatilator ND3630, ND3630I Fireplace
  • GFK21B Fireplace Fan Kit for Heatilator ND3630, ND3630I Fireplace
  • GFK21B Gas Fireplace Blower Kit for Heatilator ND3630, ND3630I
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Our GFK21B Fireplace Blower Fan Kit is designed for the Heatilator ND3630, ND3630I 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

ND3630, ND3630I
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9 Reviews

  • 5
    Great product

    Posted by Eivind on 6th Feb 2024

    Compared to the cheap Chinese made knock offs on Amazon, this product is made with real ball bearings and is a quality piece of workmanship. Works as advertised, but also do read the installation instructions in detail before installing. I did the mistake of trying to shimmy the device in from the left side, but actually the "smaller" space on the right is where it will fit). This made my fireplace much more effective as a space heater.

  • 5
    3603I fireplace blower

    Posted by Roy on 4th Nov 2022

    This is an update review. Their customer service has got to be one of the best I have death with in years. I thought the blower did not fit. I wrote a review, not a bad one but one nevertheless. Received a call from the my Fireplace and the tech, owner , whomever gave me a number to sends pictures so they could see what I was dealing with. The problem was me, and after following their instructions things fit and worked as they are supposed to. Thanks guys for you follow up and advice. I will be a long term customer and I would recommend you to any and all for their fireplace needs.

  • 4
    Gas fireplace blower

    Posted by Roy on 31st Oct 2022

    Product seemed ok however it did not fit. I checked and doubled checked to make sure it was the right product that was recommended and it was. Don’t understand why the issue, but it is.

  • 4
    Fireplace blower

    Posted by Ramon Olvera on 16th Nov 2020

    Very good, better than expected

  • 4
    Easy install

    Posted by Jeffery Loy on 9th Nov 2020

    The kit was easy to install, came with everything needed, definitely creates more heat out the front if the fireplace. My only complaint is the fan doesn't blow very hard, it's more of a light warm breeze. I will still refer friends and family here for blower kits.

  • 5
    Sooo Good

    Posted by Matt on 15th Jun 2020

    Glad I bought this product! The instructions matched perfectly to my fireplace. It was overall easy to install. The fan works as designed and I really like that it has the automatic wait time for startup for the fireplace to get hot first then to take advantage of the heat that remains by still running for awhile after shutdown.

  • 4

    Posted by Dennis on 21st Dec 2018

    This product is great, I can't believe I waited so long to order this.

  • 3
    Blower Kit for Heatilator

    Posted by Shipping on 28th Mar 2018

    Shipping was fast and installation easy as well. The blower does push warm air into the room but at a very slow rate even at the highestfan speed. The fan is placed as indicated in the instructions. All the way in the back of the fireplace with the fan facing up. I had higher expectations as we had fireplace inserts in the past that were much more efficient. In this case it’s just okay.

  • 5
    Easy to install... great installation instructions

    Posted by Unknown on 1st Jan 2018

    I gave this fireplace blower to a friend for Christmas, and they just finished installing it. They didn't have a problem with the installation and they love the performance of the product.

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