Dimplex Quantum Storage Heaters

Buy Dimplex Quantum HHR Storage Heaters

Dimplex Quantum high heat retention storage heaters are designed for homeowners who want a smarter, more cost-effective alternative to conventional electric heating. The Quantum range combines high heat retention technology with intelligent controls, delivering consistent, comfortable warmth while keeping running costs to a minimum.

Using an Economy 7 or similar off-peak electricity tariff, the Quantum charges overnight when energy is cheaper, then releases heat steadily throughout the day. The result is a highly efficient heating system that works around your lifestyle rather than against it.

Key Features of the Dimplex Quantum Range

• High heat retention core — advanced insulation materials keep stored heat locked in for longer, reducing heat leakage and improving overall efficiency
• Adaptive charge control — the Quantum automatically calculates how much energy to store overnight based on your target temperature and current climate conditions, avoiding unnecessary energy use.
• Flexible programming — three customisable heating timers, each with four time and temperature settings per day, giving you precise control over your heating throughout the week.
• Fan-assisted heat distribution — warmth is circulated quietly and evenly throughout the room, eliminating cold spots without disruptive noise.
• Open window detection — the heater monitors room temperature and pauses operation when it detects a sudden drop, resuming automatically once conditions stabilise
• Overheat protection and child lock — built-in safety features for complete peace of mind, particularly in family homes
• Renewable energy compatible — the Quantum can be integrated with solar panels or other renewable energy sources, allowing you to store and use excess generated energy for heating

Dimplex Quantum Models — Which Size Do You Need?

The Dimplex Quantum HHR range is available in five output sizes to suit different room sizes and heating requirements. As a general guide, you'll need approximately 1kW of output for every 10 cubic metres of room volume.

Not sure which model is right for your room? Browse the full range above or contact our team for advice.

Running Costs and Energy Efficiency

The Quantum's running cost credentials are genuinely impressive. Independent testing has shown that Dimplex Quantum storage heaters are up to 27% cheaper to run than a standard storage heater system, and up to 47% cheaper to run than a conventional electric convector or radiator system.

For households looking to reduce energy bills without sacrificing comfort, the Quantum represents one of the most cost-effective electric heating solutions on the market.

All Quantum models are Lot 20 Ecodesign compliant and SAP accredited, meeting the latest UK and European energy efficiency standards.

How to Use a Dimplex Quantum Storage Heater

Setting up your Dimplex Quantum is straightforward. Using the display and dial, set the date, time, and your desired target temperature for each day of the week. The heater will then charge overnight using off-peak electricity, storing enough heat to reach your target temperature at the times you've specified.

To adjust the temperature, simply turn the dial — left to lower, right to raise. Once the room reaches your target temperature, the heater switches off automatically. The key is to set your target temperature accurately, as this determines how much heat the unit stores overnight.

Also in the Dimplex Storage Heater Range

If you're comparing models, we also stock the Dimplex XLE storage heater range. The XLE is a slimline, fan-assisted storage heater that offers dynamic heat storage and a more compact design — ideal for rooms where wall or floor space is limited. Browse both ranges at Alert Electrical to find the right solution for your home.

Why Buy from Alert Electrical?

At Alert Electrical, we are a trusted UK stockist of the full Dimplex heating range, offering competitive pricing and free delivery on orders over £100. We also stock a wide range of complementary heating solutions from brands including AirMaster, dexPro, and ENER-J Smart Home. So, whatever your heating requirements, you'll find everything you need in one place.

Frequently Asked Questions

Are Dimplex Quantum storage heaters expensive to run?

No — the Dimplex Quantum is one of the most cost-effective electric heating solutions available. Running costs are up to 27% lower than a standard storage heater and up to 47% lower than a conventional convector or radiator system. The key to keeping costs down is pairing the Quantum with an Economy 7 or similar off-peak electricity tariff, which allows the unit to charge overnight at a lower rate.

How does the Dimplex Quantum differ from the Dimplex XLE?

Both are high-quality Dimplex storage heaters, but they serve slightly different needs. The Quantum is the premium option, featuring a high heat retention core, adaptive charge control, and renewable energy compatibility — making it ideal for larger rooms or homes that need a primary heating solution. The Dimplex XLE is a slimline, more compact alternative that offers dynamic storage calculation and fan-assisted heat distribution at a more accessible price point. Both are Lot 20 compliant and work best with an off-peak electricity tariff.

Can I use a Dimplex Quantum without Economy 7?

The Dimplex Quantum is designed to work in conjunction with an off-peak electricity tariff such as Economy 7, and delivers its best efficiency and cost savings when charged overnight at a lower rate. While the heater will still function without an off-peak tariff, you will not benefit from the full running cost savings the Quantum is capable of delivering.

If you are unsure whether your property is on an Economy 7 tariff, contact your energy supplier to find out.