Now that you are here, you must be looking for the best motorized duct damper! If you aren’t for it, you shall use our search and look for the topic you are interested in. As this piece is a lengthy one and covers a few more aspects other than the best list, they are the best motorized duct damper brands in United States of America and a buyer’s guide for making an informed buying decision.
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Best motorized duct damper in 2021
1. Suncourt Adjustable Motorized Damper, Closed, 8″ -Tools & Home Improvement
By Suncourt
More Pictures- You control your comfort and save significantly on energy use
- Economic damper for heating and cooling
- For general ventilation control use
- Avoid moisture build-up and keep your home smelling fresh
- The ZoneMaster will allow you to individually control the temperature of a room in your home
2. Motorized HVAC Damper 110V HVAC air Duct Damper Zone dampers Actuator Electric air Damper Register 80 100 125 150 200 250 300 350 400 mm (Outer Diameter 150mm) -Tools & Home Improvement
By ROOwarMer- Material: stainless steel
3. Suncourt ZoneMaster Fully Adjustable Motorized Airflow Control Zone Damper, UL Listed 24VAC/20VA Plug-in Transformer Included, Compatible with Any 24 Volt Thermostat, Normally Open – 8″, Silver -Tools & Home Improvement
By Suncourt- FRESH AIR INTAKE – Improve the quality of air in your home by installing a fresh air intake system with a Suncourt motorized airflow damper
- Suncourt’s dampers boast a patent-pending coupler with 0°- 90°adjustment capabilities, making them perfect for fresh air intake applications.
- Customize and maintain the temperature in specific rooms of your home with these zone dampers
- UL LISTED 24 VAC TRANSFORMER INCLUDED – Simple and user-friendly, this damper comes with a UL listed 24VAC plug-in transformer included and can operate as a standalone device using the included transformer.
- When power is not supplied, the damper stays open allowing for air to flow through.
- ECONOMIC SOLUTION – Protect your comfort & your wallet by limiting heating and cooling expenses in your space
- This cost-efficient zone damper limits the need for excessive HVAC use and keeps your heating and air conditioning costs low over time
- ENERGY EFFICIENT DESIGN – Take control of your comfort and preserve energy by using these automated duct dampers
- Once damper is closed, it will block drafts, airflow and odors from flowing through
- Easily integrate it with an existing zone controller system!
- With a 3-year manufacturer’s warranty, this zone damper is built to keep you comfortable year after year.
- TOTAL ZONE CONTROL –This ZoneMaster gives you complete individual control over the climate in your space
4. DC 12v 24v Motorized air Damper Zone dampers HVAC Damper Motorized HVAC Register for Duct Ventilation System Diameter 80 100 125 150 200 250 300 250 400 mm (DC 24V, Height 150mm + Diameter 100mm) -Tools & Home Improvement
By ROOwarMer- Material: stainless steel
5. Fincos 3 inch Plastic air Damper Valve HVAC Electric air Duct Motorized Damper for Ventilation Pipe Valve 220V 24V 12V 75mm – (Voltage: DC 12V) -Ducting
By Fincos- SIZE(mm)
- This damper is suitable for controlling the air volume from full flow to shut off
- Inside
- Voltage: DC 12V
- The damper is constructed with plastic and come with plastic pipe.
6. Fincos 4 inch Plastic air Damper Valve HVAC Electric air Duct Motorized Damper for Ventilation Pipe Valve 220V 12V 24V 110mm – (Voltage: DC 12V) -Ducting
By Fincos- This damper is suitable for controlling the air volume from full flow to shut off
- Voltage: DC 12V
- The damper is constructed with plastic and come with plastic pipe.
- Inside
- SIZE(mm)
7. Zone Damper 6″ Round Professional-Grade (HVAC Zoning) – Preminum replacement for Honeywell, EWC, Durozone, more (06) -Tools & Home Improvement
By SmartZone- Best & most reliable damper available
- PRO-Grade, Commercial Construction Quality
- Full-Seal blade seal for low leakage
- Made in the USA – 5 year replacement warranty
- Belimo – Low power / High torque motor
8. Broan MD10TU Motorized Universal Make-Up Air Damper with Pressure Sensor Kit, 10″ -Ducting
By Broan- Direct wire design works with select BROAN range hoods to balance indoor air pressure by providing interlocked make-up air; damper opens automatically when fans are activated
- Interlocked make-up air dampers provide make-up air when called for to keep the home comfortable by allowing the range hood to operate at optimum levels
- Interlocked make-up air systems avoid wasted energy associated with barometric solutions and do not let unwanted air into the home during heating or cooling activities so air pressure is equalized for a well-balanced environment
- Slave dampers (MD6S, MD8S or MD10S) are interlocked to the main automatic or universal make-up air damper and open in unison for synchronized operation
9. Honeywell ARD8TZ Round Automatic Damper, 8″ -Ducting
By Honeywell- Can be field-converted when used as an independent zone or for fresh air intake
- Designated as power closed/spring return open damper for use with Honeywell Zoning Systems
- Rated to operate up to 1-inch wc
- Features galvanized steel with single-blade damper, which closes off tightly against gasket for minimal leakage
10. Honeywell ZD14X8TZ – 24V Parallel Blade Zone Damper -Ducting
By Honeywell- Brand: Honeywell
- Free Shipping on this item!
- Product Number: ZD14X8TZ
- Category: HVAC
- 24V AUTOMATIC RECTANGULAR DAMPER 14X8 INCH –
11. Honeywell ZD8X16TZ Rectangular Parallel Blade Damper -HVAC Equipment
By Honeywell
- Solid construction using extruded aluminum frame and blades
- Parallel blade design for low leakage performance
- Direct Replacement for ZD8X16
- Reliable spring-return motor
12. Honeywell 16 in. x 8 in. Parallel Blade Damper ZD16X8TZ/U -HVAC Equipment
By Honeywell- Solid construction using extruded aluminum frame and blades.
- Simple, easy-to-wire, two-wire installation.
- Reliable, strong, 24-volt spring-return motor.
- Parallel blade design for low leakage performance.
- Mechanical visual position indicator for damper status.
13. AC Infinity CLOUDLINE T6, Quiet 6” Inline Duct Fan with Temperature Humidity Controller – Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics -HVAC Equipment
By AC Infinity
- | Airflow: 402 CFM | Noise: 32 dBA | Bearings: Dual Ball
- Mixed flow design combined with a PWM-controlled EC-motor for a truly quiet and energy efficient performance.
- Kit also includes corded sensor probe, AC power plug, two duct clamps, and required mounting hardware.
- Designed to ventilate hydroponic grow rooms, transfer heating/cooling, cool AV closets, and exhaust odors.
- Intelligent controller with temperature and humidity programming, fan speed control, timer, and alarm system.
- Duct Size: 6” | Dimensions: 7.9 x 12.6 x 8.4 in
14. Honeywell ARD6TZ Round Automatic Damper, 6″ -HVAC Equipment
By Honeywell- Can be field-converted when used as an independent zone or for fresh air intake
- Designated as power closed/spring return open damper for use with Honeywell Zoning Systems
- Rated to operate up to 1-inch wc
- Features galvanized steel with single-blade damper, which closes off tightly against gasket for minimal leakage
15. SmartZone-4X Control – 4 zone controller KIT w/Temp sensor – Universal Replacement for honeywell zoning panel truezone hz432 & more -Tools & Home Improvement
By ECOJAY
- Use any thermostats – nest, ecobee, honeywell, etc.
- Built-In Fresh Air control, Economizer and other exclusive features
- 4 ZONES up to 20 ZONES
- EASY to install, Simple to use
- Universally Compatible – Works with any system (Gas, Elect, Heat Pump)
16. AC Infinity AIRTAP T4, Quiet Register Booster Fan with Thermostat Control. Heating Cooling AC Vent. Fits 4” x 10” Register Holes. -HVAC Equipment
By AC Infinity
- Premium aluminum frame with CNC-machined detailing, painted with a matte-white finish.
- Fits ONLY 4 x 10 in
- A quiet fan system designed for improving wall and floor register airflow from HVAC systems.
- Features stator-blade fans which can deliver strong airflow from high static-pressure ductwork.
- Programmable LCD controller with heating and cooling thermostat, and automated fan speeds.
- Registers | Airflow: 120 CFM | Noise: 18 Dba | Includes Wall Adapter
17. Flair Smart Vent, Smart Vent for Home Heating and Cooling. Compatible with Alexa, Works with ecobee, Honeywell Smart thermostats, and Google Assistant. Requires Flair Puck. (4″ x 12″) -Tools & Home Improvement
By Flair
- HVAC PROS LOVE FLAIR SMART VENTS: rugged steel construction, flexible mount options, 260 ft radio range, battery and 24 VAC installation options, and onboard temperature and pressure sensors to protect and optimize home heating and cooling.
- SAVE MONEY: Heat or cool only your occupied rooms with Flair’s smart zoning made simple
- MAKE YOUR SMART HOME BRILLIANT: Works with ecobee and Honeywell smart thermostats
- Flair’s intelligent airflow redirection uses thermostat and Puck data to automatically open and close vent registers.
- Like to plan ahead? Set individual schedules for rooms at any time of day.
- Set room temperatures with your voice: Flair Smart Vents work with Amazon Alexa and Google Assistant.
- (REQUIRES FLAIR PUCK TO OPERATE)
- YOUR TEMPERATURE, YOUR WAY: Use the mobile or web app to set the perfect temperature in any room
- NO MORE HOT OR COLD ROOMS: Flair Smart Vents use sophisticated automation to eliminate uneven room temperatures and balance heating and air conditioning across your home
18. ALDES 6 Inch Round Spring Loaded Backdraft Damper – Professional Grade -Tools & Home Improvement
By ALDES
- Available in 4″, 5″, 6″, 7″, 8″, 10″, 12″, 14″ and 16″.
- Spring-loaded butterfly aluminum damper blades encased in a 20-guage galvanized steel housing
- Maximum automatic back flow protection
- Extremely easy and secure inline duct insertion installation
- Highest Rated Premium Airflow Control Backdraft Dampers
- 0.04 to 0.08 in
- Minimal pressure to open
- May be installed in any position or orientation to prevent backflow and designed for use in AC, Heating, Vent and other HVAC application temperatures from -22 to 180 degrees F (Fahrenheit)
19. Honeywell M847D Zone Valve Actuator -HVAC Equipment
By Honeywell
- Low Voltage, Spring-Return Damper Actuator
- Brand Name: Honeywell
- Equipped With Anti-Rotation And Drive Shaft Extensions For Direct Mounting To 7/16 Inch Diameter Coupling Style Dampers
- Direct Replacement For M847D1004
20. 6″ Universal Automatic Make-Up Air Damper with Pressure Sensor Kit -Tools & Home Improvement
By Nutone
- Nutone interlocked make-up air dampers provide outside air when required to keep the air in the home fresher by allowing the range hood to operate at optimum levels Universal design works with any Nutone range hood to balance indoor air pressure by providing interlocked make-up air without requiring a direct wire connection between the range hood and the damper
- Instead a sensor is attached to the exhaust duct to detect if the range hood is operating Interlocked make-up air damper systems meet I
21. Honeywell ARD12TZ Round Automatic Damper, 12″ -Ducting
By Honeywell
- Designated as power closed/spring return open damper for use with Honeywell Zoning Systems
- Features galvanized steel with single-blade damper, which closes off tightly against gasket for minimal leakage
- Can be field-converted when used as an independent zone or for fresh air intake
- Rated to operate up to 1-inch wc
22. HVAC Damper Manual Volume Damper HVAC air Duct Damper Handle air Vent Damper 80 100 125 150 200 250 300 350 400 mm (Outer Diameter 100mm) -Tools & Home Improvement
By ROOwarMer
- Materials: stainless steel
23. neverest – RKI 6″ – Professional Backdraft Damper Inline Spring Loaded for Dryer Duct -Tools & Home Improvement
By Klimapartner
- 6 inch duct damper opens and closes automatically, preventing unwanted drafts and the duct valve for 6 inch ducting can be installed horizontally or vertically
- PROFESSIONAL long life QUALITY is what the calimaero brand stands for!
- Not for use in plastic pipes.
- Backflow damper exhaust fan shutters are DESIGNED for use in AC units, installation in dryer ducts, bathrooms, STOPPING INFLOW OF AIR from range hoods and heating systems and prevent cold or warm air from entering back into the duct.
- This will help weaker booster fans to push open the 4 inch backflow preventer dampener.
- The spring needs at least 15 Pa to open correctly.
- Opposing blade damper 6 backdraft should be interested behind the bathroom fan or inline fan
- Bathroom vent draft blocker or exhaust fan shutter is INSTALLED by pushing the hvac damper into the duct with the blades opening away from the exhaust air, the ventilator should be able to push open the exhaust damper
- 6 inch damper housing is made of GALVANIZED STEEL and the dryer vent valve flaps are made of aluminium the butterfly damper axis and spring are made of stainless steel
24. 10-In HVAC Duct Manual Volume Damper with Sleeve – Galvanized Sheet Metal Round Volume Damper Airflow Ducting Branch, Adjustment Handle HVAC Air Balancing System – Easy To Install -Tools & Home Improvement
By SMK
- Ideal for use in branch duct lines for adjusting supply or return air volume
- 𝐃𝐔𝐂𝐓 𝐈𝐍𝐒𝐓𝐀𝐋𝐋𝐀𝐓𝐈𝐎𝐍 𝐓𝐈𝐏𝐒 & 𝐓𝐑𝐈𝐂𝐊𝐒: To install Damper Sleeves, you simply slide the sleeve into the item you are attaching to and fasted with sheet metal screws, and conceal the seam with duct tape
- 𝐌𝐀𝐍𝐔𝐀𝐋 𝐕𝐎𝐋𝐔𝐌𝐄 𝐃𝐀𝐌𝐏𝐄𝐑: 10-Inch Galvanized Sheet Metal Round volume damper with manual quadrant adjustment handle
- They should be located in areas that are easily accessible for adjustment
- If you don’t satisfy with our products, then please question us we will happily answer your question.
- 𝐇𝐈𝐆𝐇-𝐐𝐔𝐀𝐋𝐈𝐓𝐘 𝐌𝐀𝐓𝐄𝐑𝐈𝐀𝐋𝐒: Our Damper & Sleeves are made from Galvanized Steel
- Typical uses are for rooms that get minimal use and can be closed off for extended periods of time or rooms that need different amounts of airflow in the summer and winter
- You can easily use this Damper with vent system HVAC parts.
- The ductwork regulates the flow of air and redirects it to specific places of a house.
- 𝐁𝐀𝐋𝐀𝐍𝐂𝐈𝐍𝐆 𝐀𝐈𝐑𝐅𝐋𝐎𝐖: Balancing dampers are simply manual dampers encased in a galvanized sheet metal sleeve
- 𝟏𝟎𝟎% 𝐒𝐀𝐓𝐈𝐒𝐅𝐀𝐂𝐓𝐈𝐎𝐍 𝐆𝐔𝐀𝐑𝐀𝐍𝐓𝐄𝐄: We are willing for the satisfaction of our customers because customer satisfaction is our first priority
- We do recommend that you seal around all sheet metal to sheet metal connections with a duct sealant to prevent air leakage, and increase the efficiency of your HVAC system
- It can also be used for wind protection
- This damper does not have a 100% seal it’s used for air balancing, not air termination.
- That way, it’s possible to regulate the airflow by adjusting the position of the damper
- You should never feel any hesitation in contacting us
- All sleeves fabricated from galvanized steel meeting ASTM-A-653-96 standards, by the latest edition of SMACNA gauges and construction standards
- Each branch should have a balancing damper installed
- Designed for use in AC, dryer vent, exhaust, extractor, heating systems, fans, vents, and other residential, commercial, and industrial HVAC applications.
- If you have any kind of problem regarding our product we will fully co-operate in solving your problem
25. GVD-6PL Gas Vent Damper -Tools & Home Improvement
By Field Controls
- Operates with all 24 VAC, 60hz intermittent ignition and standing pilot ignition systems
- Stainless steel construction provides superior corrosion resistance
- Power is off at damper motor when it is at rest
- Keyed wirining harness connector plug installs only one way, preventing incorrect wiring connection
- Damper operation: Power opens in 15 seconds, power closes in 15 seconds
- Hold open switch allows damper to be placed in an open position and taken out of service to assist with trouble shooting appliance problems
26. Draft Blocker – Backdraft Damper Duct – Draft Stopper – Backflow Preventer – Inline Fan Vent – Vent Deflector (8” Inch) -Tools & Home Improvement
By ERA Group
- Back draft damper is made for insertion into inch ventilation ducts
- INSTALLATION: The backflow flap is installed by inserting it into the ventilation pipe until it stops
- The flap is suitable for retrofitting, since it is completely inside the duct
- The backflow flap opens and closes automatically at low air volumes
- Back draught valves can be inserted into ventilation ducts which are flexible or non flexible
- It has a strong spring and can be installed either horizontally or vertically
- Damper has 2 valves, designed for use in air conditioners (AC), dryers, exhaust, extractor or range hoods, heating ducts, vents and other HVAC applications
- Size: 8” Inch
- Cannot be used with plastic ducts as the sizes are different
- The Backdraft shutter is installed so that the damper blades open only in the outflowing air direction.
- The backflow damper RKI opens and closes automatically
- The position of the spring should be horizontal for horizontal installations so that it can open and close optimally
- It has a smooth-running spring and an internal foam strip to keep the blades from rattling and can be installed horizontally or vertically
27. Valemo VDM60-LO HVAC Damper Actuator, 24VAC/DC On/Off, Floating Non-Spring Return -Tools & Home Improvement
By Valemo
- Over 250K cycles of flawless operation.
- Designed for use with on/off or floating-point thermostats, controllers, or building automation systems
- Economic solution to large-torque needs, interchangeable with common installations
- Direct replacement for Belimo NEMOFTY and EWC MRK, MA-ND3, MA-ND4, MA-ND5
- Adjustable stop at both open and close ends
- VDM60 series HVAC damper actuators are typically used to control two-position zone systems, or commercial / residential HVAC dampers.
- Bi-color LED status indication: Green/Red for open/close positions.
- Manual gear release button simplifies actuator setup.
28. Escpec 12×12 I.D (14″x14″ OD) Rectangular Aluminum Motorized Damper/24 Vac,Normally Close (Power Open/Spring Close) -Tools & Home Improvement
By Escpec
- 24 Vac, Power open, Spring close.
- Ideal for zone control, fresh air intake or exhaust air outlet.
- Aluminum construction, Durable.
29. Honeywell EARD8TZ Round Fresh Air Damper, 8″ -Ducting
By Honeywell
- Galvanized steel
- Single-blade damper
- Can be field-converted to power closed/spring return open damper
- Adjustable damper position range stops
- Shipped as power open/spring return closed damper
30. Vent Systems 8” Inch Backdraft Damper – Backflow Shutter – Heavy-Duty Inline Springs Loaded – One-Way Airflow Ducting Insert – Inline Fan Vent Deflector -Tools & Home Improvement
By Vent Systems
- The flap is suitable for retrofitting, since it is completely inside the duct
- The housing of the flap is made of galvanized steel, the flap blades are made of aluminum, the axle and spring are made of stainless steel
- The rubber seal prevents loud rattling when the flap blades open and close
- Duct draft stopper prevent cold air or wind from entering the ventilation pipe
- Back draft damper for insertion into 8 inch ventilation ducts
- This means that no cold air / wind or smell can penetrate the ventilation pipe from the outside.
- The position of the spring should be horizontal when the flap is installed horizontally so that it can be opened and closed optimally
- A tight sealing and fastening of the duct is achieved by the rubber strip attached to the inside of the draft blocker damper
- In this case, the flap is installed in such a way that the flap leaves only open into the outgoing air direction
- The backflow damper opens and closes automatically
- Best to use with VENT SYSTEMS hvac parts.
- The backflow Preventer valve is installed by pushing it into the ventilation pipe as far as it will go
- This also applies to the vertical installation.
- Designed for use in AC, dryer vent, exhaust, extractor or range hoods, heating systems, fans, vents and other residential, commercial and industrial HVAC applications
- It has a strong spring and can be installed either horizontally or vertically
31. AC Infinity 8” Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 8” Ducting in Range Hoods and Bathrooms Fans -Tools & Home Improvement
By AC Infinity
- Features outer rubber gaskets that create an airtight seal and grip between the damper and ducts.
- An antidraft duct insert designed for use with range hoods, bathroom fans and other home HVAC applications.
- Fit for 8 in
- Mounts horizontally or vertically to prevent backflow and debris from entering ducting.
- Duct Openings | Product Length: 5.03 inches | Finish: Powder Coat
- Galvanized steel body with spring-loaded aluminum damper blades that open with minimal airflow.
32. Hoyme HMI Manufacturing Inc. Motorized Fresh Air Damper for Combustion – 6″ SF1 for One Heating Appliance -Tools & Home Improvement
By Hoyme
- Durable, patented HMI ‘spring motor drive’ with nylon bearings.
- Standard connection to 24VAC thermo/aqua-stat circuits.
- Simple to install, attaches to the terminating end of insulated air supply duct.
- Interlocks with the safety control system of gas, propane and oil-fired appliances.
- Certified as required by National Gas Codes; fail-safe open, power closed.
33. Rok Hardware 25 Pack Soft Close Damper for Cabinet Doors/Compact /SoftClose Cabinet Adapter/Hardware/Polished Nickel/Hinge SCD103 -Tools & Home Improvement
By Rok
- FUNCTION: Instantly allows cabinet doors to close smoothly and quietly
- Just mount it on the hinge side of the cabinet in the top corner.
- WORKS FOR CABINETS WITH FULLY CONCEALED SELF-CLOSING HINGES ONLY
- STYLISH: Nice compact design with a polished nickel finish to complement the interior and hinges of your cabinets.
- SPECIFICATIONS: Material: Plastic | Finish: Polished Nickel | Number of pieces: 25
- MUST HAVE: Works for face frame cabinets on all door overlays & frameless cabinets on full overlay doors.
- The Polished Nickel finish blends well with the hinge.
- INSTALLATION: Easy to mount in the corner of the cabinet
- Includes instructions with 1 mounting screw per damper for simple installation
34. Draft Blocker – Backdraft Damper Duct – Draft Stopper – Backflow Preventer – Inline Fan Vent – Vent Deflector (4” Inch) -Tools & Home Improvement
By Repa Market
- Damper has 2 valves, designed for use in air conditioners (AC), dryers, exhaust, extractor or range hoods, heating ducts, vents and other HVAC applications
- It has a smooth-running spring and an internal foam strip to keep the blades from rattling and can be installed horizontally or vertically
- The position of the spring should be horizontal for horizontal installations so that it can open and close optimally
- The backflow damper RKI opens and closes automatically
- INSTALLATION: The backflow flap is installed by inserting it into the ventilation pipe until it stops
- Back draft damper is made for insertion into inch ventilation ducts
- Back draught valves can be inserted into ventilation ducts which are flexible or non flexible
- It has a strong spring and can be installed either horizontally or vertically
- The flap is suitable for retrofitting, since it is completely inside the duct
- The backflow flap opens and closes automatically at low air volumes
- Cannot be used with plastic ducts as the sizes are different.
- The Backdraft shutter is installed so that the damper blades open only in the outflowing air direction.
35. Fantech 9800000 RSK-4 Backdraft Damper, 4″ Duct -Ducting
By Fantech
- Spring loaded for positive closure
- Backdraft dampers with galvanized steel collar and lightweight aluminum damper blades
- 4″ Duct
- Country of origin: United States
36. Duct Outlet 6″ Damper Sleeve w/ 1.5″ Stand-Off, 3/8″ Rod HVAC -Tools & Home Improvement
By Duct Outlet
- 20 Gauge Galvanized Damper Blade with 3/8″ Rod
- 6″ Damper Sleeve w/ 1.5″ Stand-Off, 3/8″ Rod HVAC
- 1½” Stand-Off for the locking Damper Handle
- Crimped on one end to fit inside next ducting section
- 24 Gauge Galvanized Sleeve
37. 6-in HVAC Duct Manual Volume Damper with Sleeve -Tools & Home Improvement
By Southwark
- 6″ HVAC Damper
38. Honeywell HZ311 TrueZONE Panel -Ducting
By Honeywell
- Variable-Speed Fan Control
- Clean, Professional Installation
- Robust Push Terminals
- Smaller Footprint
- Common-Sense LEDs
39. VIVOSUN 6 Inch 390 CFM Inline Duct Fan with Variable Speed Controller HVAC Blower for Ventilation -Ducting
By VIVOSUN
- Moves air through your target location efficiently for optimal ventilation
- VERSATILE APPLICATIONS: Suitable for industrial, household and horticulture ventilation applications for air clean and temperature control.
- NOTE: Comes with an installation bracket indicating the direction of the airflow
- EFFECTIVE VENTILATION: Powerful blower with a fan speed of 2550 RPM for an air flow of 390 CFM
- Max Ambient Temp is 104℉ / 40℃
- EASY INSTALLATION: Removable duct ends with locking tabs for quick removal and easy maintenance and a cord length of 5.4 feet for hassle free setup.
- LOW NOISE LEVEL: Durable plastic fan housing and blades for extremely low noise(<37 dB); Variable speed controller for easy fan speed adjustment.
40. AC Infinity 6″ Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 6” Ducting in Range Hoods and Bathrooms Fans -Tools & Home Improvement
By AC Infinity
- Duct Openings | Product Length: 5.03 inches | Finish: Powder Coat
- Features outer rubber gaskets that create an airtight seal and grip between the damper and ducts.
- An antidraft duct insert designed for use with range hoods, bathroom fans and other home HVAC applications.
- Galvanized steel body with spring-loaded aluminum damper blades that open with minimal airflow.
- Mounts horizontally or vertically to prevent backflow and debris from entering ducting.
- Fit for 6 in
41. Vent Systems 6″ Inch Backdraft Damper – Backflow Shutter – Heavy-Duty Inline Springs Loaded – One-Way Airflow Ducting Insert – Inline Fan Vent Deflector -Tools & Home Improvement
By Vent Systems
- The flap is suitable for retrofitting, since it is completely inside the duct
- This means that no cold air / wind or smell can penetrate the ventilation pipe from the outside.
- A tight sealing and fastening of the duct is achieved by the rubber strip attached to the inside of the draft blocker damper
- Back draft damper for insertion into 6 inch ventilation ducts
- The backflow Preventer valve is installed by pushing it into the ventilation pipe as far as it will go
- The position of the spring should be horizontal when the flap is installed horizontally so that it can be opened and closed optimally
- In this case, the flap is installed in such a way that the flap leaves only open into the outgoing air direction
- The housing of the flap is made of galvanized steel, the flap blades are made of aluminum, the axle and spring are made of stainless steel
- It has a strong spring and can be installed either horizontally or vertically
- The rubber seal prevents loud rattling when the flap blades open and close
- The backflow damper opens and closes automatically
- Best to use with VENT SYSTEMS hvac parts.
- Duct draft stopper prevent cold air or wind from entering the ventilation pipe
- This also applies to the vertical installation.
- Designed for use in AC, dryer vent, exhaust, extractor or range hoods, heating systems, fans, vents and other residential, commercial and industrial HVAC applications
42. VIVOSUN 6 inch Inline Duct Fan 240 CFM, HVAC Exhaust Intake Fan, Low Noise & Extra Long 5.5′ Grounded Power Cord -Tools & Home Improvement
By VIVOSUN
- Grow Room Application: Used as intake fan to bring fresh air to grow rooms; Can be used as exhaust fan in smaller set ups with LEDs or Lights under 400W
- Spec.: Diameter 6 inch, Speed 2960 RPM, Air Flow 240 CFM, Voltage 110/120V, Power 37W
- Note: Max Operating Temp of Motor is 130℃ / 266℉; Max Ambient Temp is 60℃ / 140℉.
- Household Application: Help to boost airflow from HVAC units to remote registers, exhaust smelliness in bathrooms & workshops, ventilate stale air in basements & attics, etc.
- Upgraded Advantages: Superior balanced blades for long service life & quiet operation; Motor features a permanently lubricated bearing that operates quietly and requires no maintenance; Portable light weight; Sufficient 5.5′ grounded power cord
43. Vent Systems 4” Inch Backdraft Damper – Backflow Shutter – Heavy-Duty Inline Springs Loaded – One-Way Airflow Ducting Insert – Inline Fan Vent Deflector -Tools & Home Improvement
By Vent Systems- Back draft damper for insertion into 4 inch ventilation ducts
- This also applies to the vertical installation.
- Duct draft stopper prevent cold air or wind from entering the ventilation pipe
- Designed for use in AC, dryer vent, exhaust, extractor or range hoods, heating systems, fans, vents and other residential, commercial and industrial HVAC applications
- The backflow damper opens and closes automatically
- It has a strong spring and can be installed either horizontally or vertically
- The housing of the flap is made of galvanized steel, the flap blades are made of aluminum, the axle and spring are made of stainless steel
- The rubber seal prevents loud rattling when the flap blades open and close
- Best to use with VENT SYSTEMS hvac parts.
- The position of the spring should be horizontal when the flap is installed horizontally so that it can be opened and closed optimally
- In this case, the flap is installed in such a way that the flap leaves only open into the outgoing air direction
- This means that no cold air / wind or smell can penetrate the ventilation pipe from the outside.
- The backflow Preventer valve is installed by pushing it into the ventilation pipe as far as it will go
- The flap is suitable for retrofitting, since it is completely inside the duct
- A tight sealing and fastening of the duct is achieved by the rubber strip attached to the inside of the draft blocker damper
Motorized duct damper – The Buyer’s Guide
You must have checked the above list, aren’t you mind-blown by the quality of products? Well, if you are then here’s a secret formula which we’ve used to choose them. You can use them too! The best part is, it works for all the product purchases you make! Besides, wouldn’t it be helpful to you, if you knew the factors we’ve considered to choose the motorized duct damper in the above list? So shall we begin with the guide and help you learn about the important factors?
1. Does it have the features you need?
Wait for a minute before you buy the motorized duct damper, check if it has all the features in your requirement list! If it doesn’t have them, then you should avoid buying that particular model and start looking for an alternative. We always suggest our editors to make a list of important features before adding a product to a list and based on the feature, the quality of the product, brand-assurance, rank it! So if it has all you need, you should not mind paying a bit extra. However, if you end up buying the best motorized duct damper which doesn’t have the feature you need the most, then it won’t make sense! Would it? To us, it wouldn’t! That’s why you should make up a list which includes the features you are looking for, technical specifications if any, etc and come up with a budget.
2. Budget and Price Match
Well, you obviously can’t buy the best motorized duct damper with a low budget. That’s why it’s important to make note of all the important features, specs, factors and come up with a budget. Once you are ready with it, look for the products which are either equal to your budget or are close to it. Stick to the budget, because while browsing, you’ll see a model which is slightly better and has an additional feature with a really small price difference. Well, in that case you’ll have to calculate the price of the product which has all the required features and the motorized duct damper with the additional features. See if the difference in amount is worth for the feature? If you don’t have second thoughts, you shall probably increase your budget.
3. Warranty and Brand
Most of the motorized duct damper industry experts we got in touch suggested us to always buy the one which comes from a reputable brand. They also explicitly asked us to include the best brands so that users don’t buy the models from unknown brands or non-reputable companies. Because motorized duct damper from an unknown brand might be cheap at first glance, but could have high-maintenance and could cost a lot in repairs.
Another benefit of buying a motorized duct damper from a reputable brand would be warranty. Most of the motorized duct damper from reputable brands come with good warranty. However, cheap products do come with a warranty, but claiming it can be a herculean task. That’s why buy the models which come from known brands and have good warranty.
4. Check for Reviews and Ratings
Back then when the Internet wasn’t as big as it is today, local stores charged high and even ended up selling the products which sucked or wasn’t future proof. It’s because the salesman threw technical terms and confused the buyer. But nowadays, there are sites like ours which does all the research and lists down the best models and there are eCommerce stores like Amazon which has user reviews which can be read to know the experience of the user with that particular motorized duct damper. Isn’t it great?
The Verdict
We hope that you loved the motorized duct damper we’ve listed in our best list. If it has been helpful, please bookmark our website and share it with people you know whenever they plan to buy something.
To wrap up this guide,
- If you are looking for the best motorized duct damper: You shall consider going for Hoyme HMI Manufacturing Inc. Motorized Fresh Air Damper for Combustion – 6″ SF1 for One Heating Appliance
- If you want the one which has similar features to the best, then you shall consider going for Broan MD10TU Motorized Universal Make-Up Air Damper with Pressure Sensor Kit, 10″
- If you want a motorized duct damper which is “value for money” then you shall go for the Flair Smart Vent, Smart Vent for Home Heating and Cooling. Compatible with Alexa, Works with ecobee, Honeywell Smart thermostats, and Google Assistant. Requires Flair Puck. (4″ x 12″)
- If you want the cheapest motorized duct damper then the Vent Systems 4” Inch Backdraft Damper – Backflow Shutter – Heavy-Duty Inline Springs Loaded – One-Way Airflow Ducting Insert – Inline Fan Vent Deflector should be the best one for your needs!
