The LG GBV3100DEP is the fridge freezer to buy if you care about the long game. It earns the only D energy rating in our comparison, pairs that with a quiet smart inverter compressor and Door Cooling+, and still gives you a family-sized 344 litres. Here's where it leads — and the one measurement to check first.
A fridge freezer runs every hour of every day for a decade, so efficiency isn't a footnote — it's a cost you commit to at the checkout. The GBV3100DEP is LG's answer to that, using a smart inverter compressor to keep both bills and noise down while still delivering the capacity a family needs. Add the genuinely useful Door Cooling+ feature and you have a quietly excellent large fridge freezer — and our pick for buyers who weigh running cost heavily.
| Model | Price | Type | Total capacity | Frost-free | Rating | Link | |
|---|---|---|---|---|---|---|---|
 | ★ Top pick LG GBV3100DEP Tall Fridge Freezer with Door Cooling+ | £599.00 | Freestanding, ~60/40 split | ~344 litres (234 fridge / 110 freezer) | Yes (Total No Frost) | ★ 4.4 | View → |
£599.00
Freestanding, ~60/40 split · ~344 litres (234 fridge / 110 freezer) · Yes (Total No Frost)
The verdict from Priya Sharma, kitchen appliance reviewer
The best choice if running cost and capacity both matter. LG's GBV3100DEP earns the only D energy rating here, and its smart inverter compressor keeps both noise and bills down over a long ownership. Door Cooling+ pushes cold air to the door shelves so your milk and drinks stay genuinely cold, and 344L is ample for a busy household. A quietly excellent large fridge freezer.
The door shelves stay properly cold rather than lukewarm, and the compressor barely registers in a quiet kitchen.
This is the right model for a family that wants generous space and the lowest running cost over a long ownership. At around 344 litres split roughly 60/40 in a tall 203cm body, it comfortably handles a busy household's fresh and frozen food, and its D energy rating — the best in our test — means it sips less electricity year after year than its E and F-rated rivals. If you plan to keep the appliance for many years, that efficiency advantage compounds into real savings.
It's a slightly less natural fit for the very tightest kitchens, because at around 68cm it's a touch deeper than some rivals — worth measuring your run before you commit. And at this price it doesn't include a water or ice dispenser, so if those are must-haves you'll be looking elsewhere and higher up the range. For a family that prizes low bills and big capacity, though, it's the standout.
The D rating is the headline, and the smart inverter compressor is how LG earns it. Instead of switching fully on and off, the compressor continuously varies its speed to match demand, which keeps temperatures steadier and energy use lower. Over the years that's where the GBV3100DEP repays its slightly higher purchase price — a meaningfully lower annual kWh figure than the E and F-rated units, which adds up across a decade. If running cost is high on your list, this is the model to beat in our comparison.
Door shelves are usually the warmest spot in any fridge, which is exactly where many of us keep milk and drinks. LG's Door Cooling+ tackles that by pushing cold air towards the door, so items stored there stay at a more even temperature rather than warming between openings. It's a small idea that makes a real, daily difference in a busy family fridge — fewer warm bottles, more consistent freshness.
As a Total No Frost model, both compartments stay clear of ice, so there's no manual defrosting. The 344-litre capacity is well balanced for a family, with sensible shelving in the fridge and a properly useful freezer below. Temperatures held evenly in testing and recovered well after the door was opened, helped by the inverter compressor's steady running.
The same inverter compressor that saves energy also keeps the GBV3100DEP quiet, humming gently rather than clattering through on/off cycles. The controls are straightforward, and the interior is laid out sensibly for everyday family use. It's an appliance that gets on with its job without drawing attention to itself — which, for something that runs constantly, is exactly what you want.
The GBV3100DEP's compromises are practical rather than performance-related. At around 68cm it's slightly deeper than some rivals, so a snug kitchen run needs checking with a tape measure before you buy — the door also needs clearance to open fully. And there's no plumbed water or ice dispenser at this price, which won't matter to most buyers but rules it out if that's a priority. Beyond those, there's little to fault: it's roomy, efficient, quiet and frost-free, which is a strong combination for a family appliance.
It earns the only D rating in our comparison thanks to LG's smart inverter compressor, which varies its speed to match demand instead of cycling fully on and off. Over the appliance's long life, that lower power draw can offset its slightly higher purchase price.
Door Cooling+ pushes cold air towards the door shelves, so items stored in the door — milk, drinks, condiments — stay at a more even temperature instead of being the warmest spot in the fridge. It is a genuinely useful feature for a busy family fridge.
Around 344 litres total, split roughly 60/40 between fridge and freezer, in a tall 203cm body. That is ample for a family. Note it is slightly deeper than some rivals, so measure your kitchen run before you buy.
The GBV3100DEP is our pick for low running costs and large capacity because it backs its best-in-test D energy rating with quiet, steady inverter cooling, a genuinely useful Door Cooling+ feature and a family-sized 344 litres. For a household that will keep the appliance for years and wants to minimise bills, it's the rational long-term choice, just behind the Bosch Serie 4 overall. If up-front price matters more than efficiency, the roomy Hotpoint H3T811IOX is the cheaper family option; if fridge space is your priority, see the Samsung RB34T652ESA. Measure your kitchen, match the size and split, and run the numbers in our running-cost guide before you choose.