You are here:

Chimney & Fireplaces/Loud Fan/Blower in fireplace.


I have a Heatilator EC36 fireplace. The unit has glass doors and the fan is a FK14 and there is mention of a GR4 but does not state what that part is.  Here is my issue.. The fan is turned on by a single switch and the fan is very very loud.. to the point that in our living room you cannot have a conversation or watch tv, it sounds like you are standing right next to an industrial vent.. On various sites around the web I have seen other fan/blowers with an adjustment knob and not the simple on/off flip switch that came with our home.. Hence I want to know if I can replace the flip switch with a standard dimmer type switch or some other proper switch type.  

I also saw another post of yours where you had a link to the EC36 Manual, but I couldn't determine how one would remove the lower louver vent/panel to access the fan/blower, as I surmise that the fan could perhaps be replaced with a quieter model..


Hi Jeffrey,

Those fans are typically pretty loud.  Some of them can have a rheostat installed instead of the on/off switch, but not all.  If you have the FK18 fan kit, it can have a variable speed control installed in place of the on/off switch.  The FK18 Kit looks like two computer fans under the unit.  You should be able to see it through the louvers.  They are typically accessed by removing the refractory panel(s).  It's not a DIY procedure.

These fans will not put out much heat or airflow.  Those fireplaces are really not designed to produce heat, they're only a small supplemental heat producer.

You'll need to stay with that fireplace manufacturer's recommended fan as that is the fan that is tested and listed with that unit.

The GR4 is a grate for that fireplace.

Thanks for using AllExperts.Com and good luck with your project.

A. Bart Ogden, President
Home Safe Hearth & Chimney, Inc.
Wichita, KS
Voice 316-265-9828

CSIA Certified Chimney Sweep #2653
CSIA Certified Dryer Exhaust Technician #10
NFI Certified Wood Specialist
NFI Certified Gas Specialist
NFI Certified Pellet Specialist
NFI Master Hearth Professional
NFI Instructor
NCSG Technical Advisory Council Member
2011 White House Chimney Sweeping Team Member

Advice given is general in nature. Local laws and ordinances may govern and/or supersede the information and recommendations provided. Final determinations are the responsibility of a local professional with first-hand knowledge of the situation, and the AHJ.

Note: Dissemination, distribution or copying of any part of this email or its attachments is prohibited without the expressed permission of the sender.  

Chimney & Fireplaces

All Answers

Answers by Expert:

Ask Experts


Bart Ogden


I can answer questions related to chimney and fireplace cleaning, construction and repair as well as questions related to the performance of chimneys and fireplaces. I can also answer questions related to clothes dryer vent cleaning and repair. Additionally, I can field questions related to masonry repair.


Experience in the area:
28 years experience in the chimney service/installation/repair field
President, Home Safe Hearth & Chimney, Inc. Wichita, Kansas

Professional Organizations:
Member, National Chimney Sweep Guild (NCSG)
Member, Hearth, Patio & Barbecue Association (HPBA)
Member, Kansas Guild of Professional Chimney Sweeps (KGPCS)
Member, Midwest Chimney Safety Council (MCSC)
Member, Kansas Association of Real Estate Inspectors (KAREI)
Past At-Large Director of the National Chimney Sweep Guild
Past At-Large Director of the Chimney Safety Institute of America
Past Secretary, National Chimney Sweep Guild
Past Secretary, Chimney Safety Institute of America
Member, National Chimney Sweep Guild Technical Advisory Council
Member, Chimney Safety Institute of America Certification Committee
Past Chairman, CSIA Chimney Safety Education Brochures Committee
Past Chairman, NCSG Nomination Committee

SWEEPING Magazine, The Journal of Chimney & Venting Technoloty, A Publication of the National Chimney Sweep Guild
SNEWS, The Chimney Sweep News
THE KANSAS SWEEP, The Voice of the KS Guild of Professional Chimney Sweeps

BA, Wichita State University
C.S.I.A. Certified Chimney Sweep
C.S.I.A. Certified Dryer Exhaust Technician
N.F.I. Woodburning Specialist
N.F.I. Gas Specialist
Chimney Diagnosis & Documentation Seminar
Ahren's Masonry Restoration School Graduate
Advanced Gas Certification
Master Gas Certification
Licensed Mechanical Contractor
Pellet Appliance Specialist
Venting Design Specialist
Dale Carnegie Course Graduate

Awards and Honors:
Superior Dealer Award, Ventinox Chimney Lining Systems

©2017 All rights reserved.

[an error occurred while processing this directive]