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LG LFX31945 Review

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PROS / The door-in-door feature and the space-saving icemaker give you ample space for all of your groceries.

CONS / It only comes in stainless steel.

 VERDICT / The LG LFX31945ST is both innovative and spacious, allowing you to store more food and keep it fresh longer.

LG Electronics is no longer known for consumer electronics alone and is a leading manufacturer of appliances, including the popular French door refrigerator. The LG LFX31945ST is a super-capacity fridge with a number of innovative features like a slim icemaker and door-in-door design. With a total storage capacity of 30.5 cubic feet, this refrigerator can serve the needs of a family, a household with aging parents or a couple who loves to entertain. Contoured doors, hidden hinges and a smooth interior add to the appealing aesthetics of this LG fridge. The clever storage solutions, large storage capacity and sleek design make this the best French door refrigerator on the market and our Top Ten Reviews Gold Award winner.

  1. How much it will cost to run this refrigerator for a year.
    Less is better
  2. 1 LG
  3. $90
  4. $90
  5. Category Average


This LG is considered a super-capacity refrigerator with a total capacity of 30.5 cubic feet. The top refrigerator portion has 20.5 cubic feet of storage space, which, for reference, is enough space for 20.5 standard bags of groceries.

The icemaker is slim enough to sit behind two shelves in the left side door. Most French door fridges surrender the top shelf to bulky icemakers, but the compact nature of this model gives you extra refrigerator storage.

The freezer portion has 10 cubic feet of storage space divided into three drawers. The bottom drawer is the largest and has a divider splitting it into two sections. The two smaller drawers pull out above the large drawer.

Energy Use & Efficiency

This LG French door refrigerator has an estimated yearly operating cost of $62. The estimated monthly operating cost comes to $5.17 and the yearly cost per cubic foot is approximately $2.03.

This refrigerator is Energy Star qualified and meets CSA Group sustainability standards. This means you pay less over the course of the year to keep your food cold.

Given this refrigerator's exceptionally generous interior capacity, the low operating cost is a boon for people who want the best of both worlds – lots of room for their food and beverages with remarkably little expense to run it.

Storage & Features

The interior of the French door refrigerator has an LED lamp that illuminates the clear shelves and drawers. At a glance, you can see all your stored food items. The fridge has a total of four split shelves that you can move up and down to accommodate tall and awkward-sized objects. Made from tempered glass, the shelves come equipped with spill protection. This fridge also has two crisper bins for fresh fruit and vegetables, plus one extra bin that LG calls a bonus drawer. Additionally, it has a drawer that runs the full width of the compartment and is perfect for meats, cheeses or storing large platters for dinner parties. You can control the humidity in the two crisper drawers, and the long drawer has three temperature settings.

In the right side door is a spot for storing items you commonly retrieve from the fridge. This is the door-in-door compartment. The right handle has a button that, when pressed, opens to the small compartment that has enough space for condiments, cans of soda and a few gallons of milk. This door-in-door design is an added convenience and reduces the amount of cold air that escapes the fridge when you open it.

The French door refrigerator has a spacious freezer with three full-width drawers. The top drawer holds the ice bin, the middle drawer is great for smaller items and the bottom drawer is the largest and deepest. A separate LED lamp lights the interior of the freezer compartment. The top internal baskets are made of clear plastic for increased visibility, and the other drawers are opaque.

External digital controls make it possible to see the LFX31945ST refrigerator's storage temperature, filter replacement dates and more. There are 10 digital sensors that monitor the refrigerator, freezer and room temperature. The unit vents cold air onto each shelf to maintain an optimal food storage environment and has a filter to keep the air inside fresh. The fridge also sounds an alarm every 30 seconds if a door is open for over a minute. This feature not only helps prevent costly food spoilage but can also save energy expenses.

This fridge's appeal suffers slightly because it only comes in one color option, stainless steel, and it's not magnetic. However, stainless steel is a popular look that complements most modern kitchens.

Water & Ice Dispenser

The space-saving icemaker adds an innovative touch. The icemaker is capable of producing 3.5 pounds of ice a day, and the ice tray is easy to access behind a small door. The refrigerator's NSF-certified water filter delivers fresh-tasting water and ice free from impurities. The dispenser itself also accommodates tall containers.

Warranties & Support

This refrigerator has a linear compressor motor that uses fewer movable parts than many of the other products in our French door refrigerator review. This construction method helps keep the freezer quiet and efficient and has fewer parts that could break during long-term use. But just in case, LG Electronics covers this refrigerator freezer with a one-year parts and labor warranty, an extended seven-year warranty on the sealed system and a 10-year warranty on the linear compressor.

Like some of the most top rated refrigerators, LG Electronics has a unique diagnostic tool to help with repairs. If something breaks, you can call LG and the customer support agent will instruct you on how to run the diagnostic test. Your French door refrigerator comes with a small speaker that emits a tone that contains the necessary information to diagnose the situation. You will have to hold your phone up to the speaker, but then the customer service agent will be able to tell what needs to be repaired in your fridge.


The LG LFX31945ST French door refrigerator has many innovative features and an impressive amount of space. The door-in-door configuration provides convenience, while the space-saving design gives you ample room for all of your groceries. The single color option limits your capacity to match the fridge with your decor, but the stainless steel is attractive. LG made smart design choices that use your space wisely and conserve energy, which is why this we chose it as the best French door refrigerator in our line-up.