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Enervex RS 014 EcoDamper Gas Burning Chimney Fan System

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Perfect Fire. Any Fuel. ENERVEX provides a full line of listed, fully integrated residential venting systems for a truly one-stop design.

All products are manufactured by one manufacturer, which means our systems will work together seamlessly. No guesswork in the design process, and the flexibility to add what you need, when you need it.

At ENERVEX, one supplier takes full responsibility for the performance, efficiency and sustainability of your system with the best guarantees and warranties in the business.

Corporate History

Innovative Venting Designs. Engineered for Savings.

ENERVEX is a world-leading supplier of mechanical draft systems and integrated venting design solutions. We introduced the industry’s first mechanical draft fan in 1958 and today we deliver custom-built, one-stop venting systems from boiler outlet to chimney termination. ENERVEX serves North and Central America as well as the Middle East, operating from our 80,000-sq. ft. facility in Atlanta, GA. 

ENERVEX evaluates and builds every solution from the ground up with careful evaluation of the unique cost variables and long-term financial savings for each customer. Through superior manufacturing technology and decades of experience, we’re delivering high-quality, listed and certified venting solutions that are economical, environmentally sustainable, aesthetically pleasing, reliable, and code compliant. Backed by the best performance guarantee in the business.

All of our solutions are delivered under a single, highly respected name with full responsibility taken for operational excellence. That’s our performance guarantee, and the reason why the ENERVEX brand has been trusted by some of the most successful projects in the world.

Established in 1990, ENERVEX is based in Alpharetta, Georgia and operates in a number of countries with emphasis on the US, Canada, Central American and the Middle East.

The company's global business is 70 percent commercial (offices, healthcare, education, sports facilities, multi-family and mixed-use buildings, hotels and resorts) and 30 percent residential.

Since the invention of the chimney fan, ENERVEX continues to bring innovative draft control and mechanical draft solutions to market:

  • Modulating mechanical draft systems (1991)
  • Modulating combustion air supply systems (1995)
  • True inline mechanical draft fans (2006)
  • Fan-powered flue gas economizers (2011)
  • Inline flue gas economizer with modular heat exchanger systems (2013)
  • Ultra-energy efficient, permanent-magnet motors – standard in most products (2015)
  • Single universal chimney systems listed for virtually all venting applications (2015)
  • High-temp, pressure & leak-resistant graphite gaskets for sealing fan/chimney joints (2015)
  • ONLY supplier with a 6-Month Performance Guarantee (ALWAYS)



Automated Draft and Damper System (EcoDamper - Gas)

An economical, sustainable and quiet draft solution for gas-fired fireplaces that saves energy and maintains safe and proper draft while protecting against dangerous chimney downdraft and fireplace spillage.

The environmentally friendly ENERVEX EcoDamper System is the first combined draft and damper system for use with gas fireplaces.

The EcoDamper System quietly manages a perfect draft and prevents heat from escaping through the chimney when the fireplace is not in use. It eliminates the need for glass doors, opening up many new design options while allowing for a larger view area of the fire and a more natural look.

The system consists of the RS Chimney Fan, the Mechanical Fireplace Damper (MFD) and the ADC100 Control.


  • Can be integrated into virtually any fireplace design
  • Perfect draft saves fuel, eliminates spillage & carbon emissions
  • Protects against downdrafts and spillage
  • Automatically shuts down fireplace in unsafe conditions
  • Chimney closes when fireplace is not in use, saving energy
  • No need for glass doors


  • Provides ambiance
  • Ensure proper draft & safe operating conditions at all times
  • Save fuel and energy
  • Get design freedom for virtually any chimney application
  • Discreet termination 

How it works:

The Eco Damper connects a draft and safety controller, the ADC100 and its pressure sensor, to an RS 014 Chimney Fan, the MFD Chimney Damper and the fireplace’s gas valve.

ADC100, Universal Control w. variable speed & PDS

In gas-fired fireplaces modulation may not always be required. In this case, an ENERVEX Fan and Damper Control (ADC 100) is a great choice.

This fan controller may be interlocked with the fireplace to control the speed of the fan and maintain proper draft in the chimney. It provides a 10-120 VAC signal to single-phase fans, and a 0-10 VDC signal that can be interpretted to control three-phase fans by an EDrive.

Use: The ENERVEX ADC100 Appliance Draft Control is used to control draft in systems where modulation is not required. It controls the speed of the fan to maintain proper pressure in the chimney. The ADC100 is for indoor installations only. The control can be used with Models RS and GSV Fans.

The ADC100 is typically used to control the draft of a gas-fired furnace, fireplace, stove, or pizza oven.

Description: The ADC100 comes with an external PDS. The PDS is a NO/NC switch that monitors the pressure in the chimney.

The ADC100 operates a chimney fan at a set speed to create and maintain proper mechanical draft at the outlet of a heating appliance(s). The control provides a 10-120 VAC signal to single phase fans, as well as a 0-10 VDC signal that can be used to control 3-phase fans by a variable frequency drive.

The ADC100 comes with an external PDS. The PDS is a NO/NC switch that monitors the pressure in the chimney. In case of inadequate draft, the PDS will open and if open for 15 seconds, the control will go into alarm mode and lock out the appliance until draft is restored.

The control features a manual and automatic adjustment mode which is selected via dipswitch. The PDS check function and manual or automatic reset function are also selected through a dipswitch.

An integrated damper relay allows a damper to be connected directly to the ADC100. The control ensures that the damper is fully open before allowing the appliance to operate by interlocking the damper end-switches to the control. In the event that the controller senses any mechanical failures, the control will initiate a retry sequence.

The enclosure is made of NEMA 1 rated ABS plastic.

Standard Equipment:
• ADC 100 Control Box
• PDS Proven Draft Switch Box
• Stack Probe
• 6' Silicone Tubing


  • 0-10 VAC control signal and 10-120 VAC for variable speed
  • For indoor installations only
  • For use with RS Fans
  • Includes an external PDS Proven Draft Switch
  • Controls both 1x120V and 3x230V/460V fan (three-phase fans require an EDrive)


RS 014 Chimney Fan

Are you having incurable draft problems? Look no further for a solution. The RS Chimney Fan mounts outside the chimney, where it literally sucks the smoke out from the chimney flue.

The chimney fan is designed to disperse the smoke sideways (horizontal) just like a standard chimney cap. The RS is particularly suitable for gas-fired fireplaces and stoves.

Installation is clean and easy - and the fan's compact design is barely visible from the ground level. The fan can be recessed or hidden behind the chimney top enclosure. 


  • Quiet Operation
  • Variable-speed motor
  • Use with gas-fired appliances
  • Comes in 4 sizes
  • Complete fan and control packages available from a single manufacturer
  • Low operating costs
  • 6-months Performance Guarantee
    MFD Mechanical Fireplace Damper

    This MFD Mechanical Fireplace Damper prevents heat from escaping up through the chimney when the fireplace is not in use, and prevents backdraft down the chimney. It is designed for chimney top installations.

    The MFD is used as a component in a combined fan and damper system. The damper actuator can be interlocked to a control (ADC100 or ADC150) so it only operates when the fireplace is in use and the fan is running.

    The damper is equipped with fail safe system and is rated for 1400°F (760°C).


    • Saves energy
    • Meets energy code requirements
    • Integrated fail safe system
    • Low profile


    Download EcoDamper Brochure here..



    Model ADC100, Universal Control w. variable speed & PDS
    Power Supply 1 x 120VAC
    Amperage 6.3A
    Control Signals 0-10 VAC (for VFD) and 120/240 VAC (for direct connect)
    Output 10-120VAC / 0-10VDC
    Control Relays (2) Max 120VAC/8A
    EMC Standard Emission: EN50 081-1, Immunity: EN50 081-2
    Warranty 2 Years
    Listing Certification For use with Model RS listed to UL 378, Standard for Draft Equipment
    UL508/UL 60947, Standard for Industrial Control Panels
    CSA C22.2 No. 14-95, Standard for Industrial Control Equipment

    Model RS Chimney Fan
    Capacities 0-1,800 CFM (0-3,000 m3/h)
    Material Cast Aluminum Housing and Stainless Steel Axial Vane
    Drive Axial Vane
    Motor Variable Speed, TEFC, Class H
    Max. Temp 575°F (300°C)
    Warranty 2-Year Factory Warranty
    10-Year Warranty Against Corrosion Perforation
    Listings UL 378 Standard for Draft Equipment
    UL 705 Standard for Power Ventilators
    CSA3-B255-M81 Standard for Mechanical Flue Gas Exhauster
    Model RS 014
    Discharge  Horizontal
    Fan Type Axial Vane
    Motor Type Totally enclosed, Variable speed, Class H
    Voltage   VAC 1x120V @ 60 Hz
    Amperage   Amps 1.4
    RPM  1600
    CFM at 0.0Ps 1400
    Motor Output  hp / kW  1/7 / 0.1
    Weight lbs / kg 47 / 21
    kg 21
    Dimensions A in / mm 13.1 / 334
    B x B in / mm 16.6 / 422
    C in / mm 15.5 / 395
    D in / mm 3.9 / 100
    E in 13.5 / 342
    Temperature Rating Interm. 575°F / 300°C
    Cont. 482°F / 250°C

    Model MFD Mechanical Fireplace Damper
    Available Sizes (ID) 6" to 16" (150mm to 400mm)
    Material Stainless Steel 316L
    Actuator Brushless DC Motor
    Power 120VAC or 24VAC/VDC Brushless Motor
    Torque 54 in-lbs (6 Nm)
    Speed 90° in 15 Sec.
    End Switches 2
    Temperature Rating 1400°F (760°C)
    Warranty 2-year Factory Warranty


    We complete our systems with the addition of a wide range of accessories. That is one of the advantages of working with a single manufacturer. No need to deal with multiple suppliers hoping everything will go together properly in the field.

    Click to see accessories

    MFD Mechanical Fireplace Damper

    An energy-saving, low profile, automated chimney-top mounted fireplace damper for use with gas-fired applications.

    SCA Steel Chimney Adapter

    The adapter used to provide support for the installation of an RS or RSHT chimney fan on a round steel chimney.

    ASCA Steel Chimney Adapter

    The adapter used to provide support for the installation of an RS or RSHT chimney fan on a round, air-cooled steel chimney.


    Click HERE to shop for more Accessories.