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7.4 cu. ft. Ultra Large Capacity Smart Front Load Gas Dryer

LG DLG3421W

Features

  • Enjoy a 2-year limited warranty on select appliances purchased through April 08, 2026 via the ThinQ® app. Terms apply.
  • 7.4 cu. ft. Ultra Large Capacity lets you clean larger loads
  • With the FlowSense® Duct Clogging and Lint Filter Indicators, keep dryer clean, efficient and safe
  • Designed for quiet operation, run the dryer without interrupting naptime or your favorite show.

Quick Specs

  • Type: Dryer
  • Fuel: Gas
  • Style: Front Loading
  • Width: 27"
  • Height: 39"
  • Depth: 30.12"
  • Energy Star Rated: No
  • Laundry Capacity: 7.4 cu. ft.
  • High Efficiency: No
  • Steam Cycle: No
  • WiFi Connected: Yes

See More

 
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Smooth, Quiet Performance

Run the dryer whenever you want, without interrupting naptime or your favorite show. This dryer is designed for quiet operation, from the motor to the cabinet to individual components. Pleasant end-of-cycle chime lets you know when clothes are dry.

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Built-in Intelligence Takes Out The Guesswork

Forget about endless sorting or toggling through cycles-built-in sensors use AI technology to detect fabric texture and load size, then automatically select the right drying motions, temperatures and more for advanced fabric care. AI Sensor Dry™ detects moisture levels and automatically adjusts drying time for loads of all sizes-no more damp clothes, no more overdrying.

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Who Says Dryers Can't Be Energy Efficient?

High efficiency sensor drying and low-heat settings save energy and money by using about 20% less energy than conventional models without sacrificing features or performance.

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Win the War on Wrinkles

When you hate wrinkles but can't be there to remove clothes as soon as they're dry, just select the Wrinkle Care option before hitting start. The dryer will periodically tumble the load for up to 3 hours after the cycle is done or until the door is opened to help keep wrinkles at bay.

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Spend Less Time On Laundry With More Room For Clothes

Free up your day-fit more clothes in every load with 7.4 cu. ft. of space. Running fewer loads saves energy and money on your utility bill.

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Greater Installation Flexibility

When space is tight or your laundry room doesn't fit the "typical" setup, this dryer's door can easily be reversed to fit your needs. Go from a right swing to a left swing in minutes-just unscrew the hinges and reattach using the pre-drilled holes on the opposite side.

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More Style, Less Space.

LG closet-depth washers and dryers have a shallower depth to fit in more places & add sleek style to any room.

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Keep Your Dryer Clean, Efficient And Safe

FlowSense® Duct Clogging and Lint Filter Indicators let you know when your ducts and filter need cleaning to avoid lint buildup, improve the dryer's performance for greater efficiency and lower utility bills, and help give you safer, worry-free operation with fewer service calls.

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A Smarter Home Starts with the ThinQ® app

The ThinQ® app 1 offers control and convenience for smart LG appliances to help you simplify life and enjoy the comforts of home. Manage and monitor your dryer remotely, track and download cycles, connect with Google or Alexa voice assistants, and more. ThinQ Care appliances send usage, maintenance, and diagnostic alerts to notify you of potential issues and hazards like clogged dryer ducts. ThinQ UP appliances receive software updates for new features and enhancements. Learn More .

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Measure First, Order Right.

Nothing is more frustrating than an appliance that doesn't fit. We'll help you find the right one for your space. Watch the Full Movie with Audio descriptions Watch the Full Movie

Smooth, Quiet Performance Run the dryer whenever you want, without interrupting naptime or your favorite show. This dryer is designed for quiet operation, from the motor to the cabinet to individual components. Pleasant end-of-cycle chime lets you know when clothes are dry.

Built-in Intelligence Takes Out The Guesswork Forget about endless sorting or toggling through cycles-built-in sensors use AI technology to detect fabric texture and load size, then automatically select the right drying motions, temperatures and more for advanced fabric care. AI Sensor Dry™ detects moisture levels and automatically adjusts drying time for loads of all sizes-no more damp clothes, no more overdrying.

Who Says Dryers Can't Be Energy Efficient" High efficiency sensor drying and low-heat settings save energy and money by using about 20% less energy than conventional models without sacrificing features or performance.

Win the War on Wrinkles When you hate wrinkles but can't be there to remove clothes as soon as they're dry, just select the Wrinkle Care option before hitting start. The dryer will periodically tumble the load for up to 3 hours after the cycle is done or until the door is opened to help keep wrinkles at bay.

Spend Less Time On Laundry With More Room For Clothes Free up your day-fit more clothes in every load with 7.4 cu. ft. of space. Running fewer loads saves energy and money on your utility bill.

Greater Installation Flexibility When space is tight or your laundry room doesn't fit the "typical" setup, this dryer's door can easily be reversed to fit your needs. Go from a right swing to a left swing in minutes-just unscrew the hinges and reattach using the pre-drilled holes on the opposite side.

More Style, Less Space. LG closet-depth washers and dryers have a shallower depth to fit in more places & add sleek style to any room.

Keep Your Dryer Clean, Efficient And Safe FlowSense® Duct Clogging and Lint Filter Indicators let you know when your ducts and filter need cleaning to avoid lint buildup, improve the dryer's performance for greater efficiency and lower utility bills, and help give you safer, worry-free operation with fewer service calls.

A Smarter Home Starts with the ThinQ® app The ThinQ® app 1 offers control and convenience for smart LG appliances to help you simplify life and enjoy the comforts of home. Manage and monitor your dryer remotely, track and download cycles, connect with Google or Alexa voice assistants, and more. ThinQ Care appliances send usage, maintenance, and diagnostic alerts to notify you of potential issues and hazards like clogged dryer ducts. ThinQ UP appliances receive software updates for new features and enhancements. Learn More .

Measure First, Order Right. Nothing is more frustrating than an appliance that doesn't fit. We'll help you find the right one for your space. Watch the Full Movie with Audio descriptions Watch the Full Movie

Features

  • Enjoy a 2-year limited warranty on select appliances purchased through April 08, 2026 via the ThinQ® app. Terms apply.
  • 7.4 cu. ft. Ultra Large Capacity lets you clean larger loads
  • With the FlowSense® Duct Clogging and Lint Filter Indicators, keep dryer clean, efficient and safe
  • Designed for quiet operation, run the dryer without interrupting naptime or your favorite show.
  • Built-in intelligence takes out the guesswork-AI Sensor Dry™ selects optimal dry settings
  • Get the ThinQ® app to access smart functions, ThinQ Care™ alerts and download new ThinQ UP™ features
  • ENERGY STAR Certified-High efficiency sensor drying and low-heat settings save energy & money
Dryer Programs
No. of Dryer Programs 10
Dryer Programs AI Dry, Towels, Perm. Press, Quick Dry (Manual Dry), Bedding, Delicates, Downloaded, Heavy Duty, Normal
No. of Dryer Options 7
Dryer Options Control Lock, Damp Signal, Remote Start, Wi-Fi, Energy Saver, Signal, Wrinkle Care
Drying Levels Very, More, Normal, Less, Damp
Dry Modes No
Manual Dry Times 60 min., 50 min., 40 min., 30 min., 20 min.
Temperature Settings High, Med. High, Medium, Med. Low, Low
Laundry Appliance Capacity
Capacity 7.4 cu. ft.
Summary
Product Color White (W)
Matching Washer WM3420CW
Dial-A-Cycle™ Yes
Hard Buttons No
Series LG
Steam No
Touch Buttons Yes
Type Front Load Dryer
Energy
CEF 3.49
ENERGY STAR Certified Yes
Fabric Care Features
Precise Temperature Control with Variable Compressor No
AI Sensor Dry™ Yes
Precise Temperature Control with Variable Heater Yes
Sensor Dry Yes
Steam Technology No
Laundry Appliance Convenience Features
3 Minute Installation Check Yes
4 Adjustable Legs Yes
Control Lock Yes
Drum Light No
End of Cycle Signal Yes
Wrinkle Care Option Yes
Remaining Time Display/Status Indicator(s) Yes
Reversible Door Yes
FlowSense™ Duct Clogging Indicator Yes
Vent Type Vented
Venting Option 3 Way Venting
Laundry Appliance ThinQ® Smart Features
Energy Monitoring Yes
NFC Tag On No
SmartDiagnosis™ (v3.0) Yes
ThinQ Care™ Yes
Wi-Fi Yes
Materials and Finishes
All Available Colors White (W)
Aluminized Alloy Steel Drum Yes
Cabinet Painted Steel
NeveRust™ Stainless Steel Drum No
Power Source
Dryer Power Source Type Gas
Dryer BTU Rating 20,000
Dryer Electrical Requirements 120V, 60Hz, 5 Amps
Ratings CSA Listed
Options/Accessories
LP Conversion Kit 383EEL3002R
Pedestal WDP6W
Side Venting Kit 383EEL9001B
Dimensions
Carton (WxHxD) 29" x 43 1/4" x 31 3/8"
Depth with Door Open 51 3/8"
Pedestal (WxHxD) 27" x 13 5/8" x 28" (43 7/8" D with door open)
Product (WxHxD) 27'' X 39" X 30 1/8''
Weight (Carton) 124.9 lbs
Weight (Product) 123.02 lbs
Warranty & UPC
Drum 3 Years
Parts and Labor 1 Year
UPC 048231349918

Quick Specs


  • Appearance

  • Type: Dryer
  • Fuel: Gas
  • Style: Front Loading

  • Dimensions

  • Width: 27"
  • Height: 39"
  • Depth: 30.12"

  • Features

  • Energy Star Rated: No
  • Laundry Capacity: 7.4 cu. ft.
  • High Efficiency: No
  • Steam Cycle: No
  • WiFi Connected: Yes

LG ThinQ Care Warranty Promo

Offer Expires: 1/1/2026 to 4/8/2026 Must be postmarked by: 6/8/2026

Purchase a qualifying LG product and register it through ThinQ app to extend the original 1 Year LG Limited Manufacturer Warranty to 2 Years at no cost, valued up to $185. Rebate form must be postmarked by 6/8/2026.

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. Some can even cover extra costs that result, such as cost of food that spoils when your fridge dies. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Appliances can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new appliances should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.