Dimplex Quantum QM125 1250W Electric Storage Heater

SKU: QM125
£675.00 ex.VAT £810.00 inc.VAT
  • In Stock
  • Free Delivery*
  • Timed Delivery
  • The most advanced & economical electric heating system on the market today
  • Revolutionary iQ controller enables heating requirements to be pre-set
  • Automatically adjusts to the user's needs through its dynamic storage capacity
  • Designed to operate on any off-peak tariff
£ 675
Features & Specification

Additional Information

Brand Dimplex
Storage Heater Type Quantum
Input Rating 2.76kw
Product Range Storage Heaters
Wattage (Power Output) 1.25kw
Warranty 10 years
Colour White
Height (mm) 730
Depth (mm) 185
Width (mm) 1,069
Heater Controls Thermostatic Control
Voltage 230/240V
GTIN 05011139046178


Dimplex Quantum electric storage heaters are the world’s most advanced and economical electric heating system on the market today. Like other electric storage heaters the Dimplex Quantum heaters offer low running costs via the off peak tariff, however due to its improved insulation and a few other clever features the quantum is up to 27% cheaper to run and uses up to 22% less energy than a standard storage heater system

Dimplex Quantum heaters adapt to match lifestyle and climate conditions, delivering heat only when it's needed

Dimplex are so confident in the quality of Quantum heaters they come with an impressive 10 year manufacturers warranty.

Energy Saving Features

Total Control

Quantum is fitted with our iQ controller so you can pre-set your heating requirements – just like central heating. Manual adjustment, if required, is also simple with its easy-to-read LCD display and user-friendly low torque rotary knob – designed with the visually impaired in mind.

Heat on Demand

Quantum stores energy up during periods of low demand, turning it into efficient heat only when needed. Through its use of a sophisticated self-learning algorithm, our IQ controller is able to take just the right amount of heat to match the user’s lifestyle and changing weather, intuitively and precisely. 

Product Features

Dynamic storage capacity - automatically adjusts to user needs.

Designed to retain over 50% of heat 24 hours after the initial charge.

Fan assisted heat output when required.

Attractive state-of-the-art design, no deeper than a double wet radiator.

Chassis covers previous "fixing marks" of all comparably sized traditional storage heaters and comes with adjustable feet position.

Electronic user interface with LCD display with, Room temperature setting, 7 day programmer for fan operation and Installer settings

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Delivery Charges

Delivery charges start from Free Delivery depending on the products and delivery location. Our delivery charges are split into 4 tariffs – Free Delivery, Standard Delivery, Heavy Goods and Lamps & Bulbs.

The delivery charge for each product is shown on the individual product details page and again when the item is added to the basket. The delivery charge is a one off charge per order, regardless of the number of items ordered.

The majority of our orders are delivered within 1-2 working days, but please allow 3-5 working days for your item to arrive. If you require the item urgently, please give us a call on 0871 288 4236 and we will be happy to advise on availablity.

Area Delivery Type Cost
Zone A Mainland UK Small Items Standard Delivery Heavy Goods   Next Day Delivery Next Day Delivery Next Day Delivery £2.50 £7.00 £40.00   £10.00 £10.00 £60.00
Zone A Mainland UK Small Items Standard Delivery Heavy Goods   Next Day Delivery Next Day Delivery Next Day Delivery £0 £0 £0   £10.00 £10.00 £30.00
Zone B Postcodes: DD, DG, EH, FK, G. KA (except KA27 & KA28), KY, ML, TD, AB 1-16. AB 21-25, AB 30, AB39, PA 1-19, PH 1-3 Small Items Standard Delivery Heavy Goods £2.50 £7.00 £54.00
Zone C Postcodes: AB 31-38, AB 40-56, IV 1-28, IV 30-32, IV 36 & 40, IV 52-54, IV63, KW 1-14, PA 21-38, PH 4-41 Small Items Standard Delivery Heavy Goods £2.50 £18.00 £84.00
Zone D Postcodes: HS, IV 41-49, IV 51, 55 & 56. KA 27 & 28, KW 15-17. PA 20, PA 41-49, PA 60-78, PH 42-44. PH49-50. ZE. Isle of Man (IM). Channel Islands. Northern Ireland Small Items Standard Delivery Heavy Goods £2.50 £18.00 £150.00
Zone E Rebublic of Ireland Small Items Standard Delivery Heavy Goods £4.74 £30.00 £150.00
Zone F Belgium, Denmark, France, Germany, Netherlands, Norway, Spain, Sweden Small Items Standard Delivery Heavy Goods £18.00 £48.00 £168.00

I have lost the instructions for this product / I don’t know how to use it

These electric night storage heaters are very easy to use and you can download the operating instructions by clicking on this link - Download Instructions

What size electric storage heater do i require?

If you need a quick idea of what size heater you require for a room you can use the Dimplex Quantum Heating Calculator

What are the main benefits of purchasing a storage heater?

Storage heaters are one of the most popular forms of electric heating, and because they use low cost 'off peak' electricity running costs are low. Storage heaters are also cheap and easy to install, requiring no pipework or flues. Storage heaters have no moving parts or internal combustion, are virtually maintenance free and do not require an annual safety check.

How much will a storage heater cost to run?

This depends on the individual energy suppliers and their charges for off peak energy, however it is a more cost effective method as ‘off peak’ energy is cheaper than peak / day rate..

How and when do I charge my night storage heater?

Storage heaters work by taking an energy charge during off peak energy times - (usually overnight – although some energy suppliers offer a day-time boost). On all storage heaters you are able to control the input charge (the amount of heat stored) by using a simple control on the top of the heater. When your energy supplier makes the off peak energy available the storage heater will automatically start to charge, then, once it has taken either it’s full charge or the energy supplier stops the off-peak energy, the heater will release the heat gradually throughout the day. Please consult energy suppliers in your area for details on tariffs available.

Are they easy to use?

Storage heaters are very easy to use, but it is important to remember that they operate differently from conventional wet radiator systems as they heat the fabric [the walls and furniture] of the building.

Can I paint your products?

No, we do not advise the painting of our heaters.

Do they require a lot of maintenance?

The storage heaters have no moving parts or internal combustion so they are virtually maintenance free and do not require an annual safety check.

Can I dry my clothes on my storage heater?

No, you should never cover the surfaces of the heater or obstruct the air outlet grilles as this will cause temperatures of the product to rise and the safety cut-outs to operate. 

Can storage radiators be wall mounted?

Storage heaters are not designed for solely wall mounting, they require a combination of feet and secure wall fixings due to their weight.



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