Available 
LG V7 FDV709W Connected 9Kg Heat Pump Tumble Dryer with Allergy Care, Gentle Care, A++ Energy Rating
from £699.
£699
Rated 4.8 / 5 from up to 843 reviews
Colours tracked: White
Guide
How to choose an energy-efficient electrical for lower running costs
Compare AO laundry electricals by energy label, capacity and fit so you can judge whether a higher upfront price could make sense over time.
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Last verified: 2026-07-17
What actually affects running costs?
The first thing to check is the energy label, because AO’s buying advice treats it as the starting point for judging how efficiently an appliance should run over time. Capacity, cycle length and how often you’ll use it also matter: a 9kg machine can suit a busy home, but a model that is too large for your laundry load may be less efficient in everyday use. In this shortlist, the Samsung Series 6+ AI Energy AutoDose™ WW90DG6U85LBU1 9kg Washing Machine starts at £494, while the LG V7 FDV709W Connected 9Kg Heat Pump Tumble Dryer is £699, so the price gap is worth weighing against how often each appliance will be used.
Features that can save money over time
For laundry appliances, the most relevant efficiency features are the ones that reduce energy use during the job itself. AO’s guidance points shoppers toward heat-pump tumble dryers for better efficiency, and toward eco wash programmes and sensor-controlled washing on washing machines, because they can help reduce waste by using lower temperatures or adjusting the cycle to the load. That makes the Samsung Series 6 DV90T6240LN Connected 9Kg Heat Pump Tumble Dryer at £642 a more efficiency-led buy than a conventional dryer type, while the Samsung washer’s AI Energy AutoDose and 1400 rpm spec suggest a more feature-rich approach to day-to-day washing.
Which electrical types are most worth prioritising?
This page is strongest for laundry, so the sensible shortlist focus is washing machines and tumble dryers rather than a broad all-electrical ranking. If lower running costs matter most, heat-pump tumble dryers are a clear category to compare first, while washing machines deserve attention when they have a strong energy label, eco programmes and sensor-style controls. Review ratings around 4.8/5 can add confidence that shoppers are happy with the product, but the Samsung washing machine’s larger review count should be treated as reassurance about popularity, not proof of lower energy use.
When a cheaper model is the better buy
A lower price can be the better value if the appliance will not be used heavily or if the extra efficiency features do not fit your household needs. The shortlist spans £494 to £699, so the Samsung Series 6+ AI Energy AutoDose™ washing machine is the most accessible entry point, while the LG and Samsung heat-pump dryers ask more upfront but may suit shoppers who dry clothes frequently and want a more efficiency-focused format. Before deciding, check installation type, clearance, colour, delivery and the latest retailer page, because some live product details were unavailable during checking and those details can change.
What the wider research shows
AO’s own guidance is consistent: check the energy label first, then look for the features that fit the appliance category and the way you use it. For washing machines, that means eco wash programmes and sensor-controlled washing; for tumble dryers, it means heat-pump technology, which AO highlights as the more efficient dryer type to consider. The shortlist is limited, but the public rating picture is strong at around 4.8/5 for all three items, with the Samsung washing machine showing the largest review count, so the best reading is a comparison shortlist rather than a definitive ranking. Always confirm the latest price, stock, delivery and full specification on AO before buying.
How to turn the advice into a shortlist
Start with the energy label and then match capacity to household size, because that gives you the clearest read on likely running costs and fit. If you dry laundry often, the Samsung Series 6 DV90T6240LN and LG V7 FDV709W heat-pump models are the most relevant comparisons; if washing is the bigger priority, the Samsung Series 6+ AI Energy AutoDose™ WW90DG6U85LBU1 9kg machine at £494 is the value-led option in this set. Review volume can help with confidence, but it should not outweigh capacity, installation type, dimensions and clearance, especially since some retailer details were not fully visible when this shortlist was checked.
Electricals to use as comparison examples
Available 
Samsung Series 6 DV90T6240LN Connected 9Kg Heat Pump Tumble Dryer with Optimal Dry, Hygiene Care, A+++ Energy Rating
from £642.
£642
Rated 4.8 / 5 from up to 737 reviews
Colours tracked: Graphite
Available 
Samsung Series 6+ AI Energy AutoDose™ WW90DG6U85LBU1 9kg Washing Machine with 1400 rpm
from £494.
£494
Rated 4.8 / 5 from up to 1,815 reviews
Colours tracked: Black
Retailer details used
Last checked 2026-07-17. The source list below is included to help you check the details behind the comparison. Always confirm the latest price, delivery cost, stock status and product details with the retailer before buying.
- Energy Saving A-Rated Washing Machines | Best Deals Online ao.comEnergy label guidance, eco wash, sensor control, inverter motor, lower-temperature running-cost tips
- Top Tips for Buying a Washing Machine ao.comEnergy rating overview, buying factors, warranty mention, drum size context
- Types of Tumble Dryer: Everything You Need to Know ao.comTumble-dryer category guidance and energy-rating context
- Tumble Dryers | Vented, Heat Pump & CondenserHeat-pump product context and category listings
- How Much Does It Cost | Energy EfficiencyRunning-cost framing and savings-tool explanation
Helpful next reads
Use these related electricals guides and reviews to turn the advice into a practical shortlist.
Firmness questions
Are more expensive electricals always cheaper to run?
Not always. A higher price can make sense if the appliance uses less energy in everyday use and you expect to run it often, but it depends on the exact model, capacity and how you use it.
What should I check besides the energy label when comparing AO laundry appliances?
Look at capacity, installation type, dimensions and clearance, plus the features that matter for the job: heat-pump tech for dryers, or eco and sensor-style washing features for washing machines.
Do heat-pump tumble dryers make the most sense if lower running costs matter most?
They are a sensible category to prioritise because AO highlights heat-pump dryers as the more efficient dryer type. The trade-off is usually a higher upfront price, so compare that against how often you will dry laundry.