Electric Storage Heaters
Electric storage heaters use lower-cost off-peak electricity to heat your home more affordably. Browse our range from Creda, Dimplex and Rointe, including the high heat retention Dimplex Quantum range, with outputs from 500W to 1.5kW.
Each heater charges overnight, storing warmth in a core of dense bricks, then releases it steadily through the day and evening. Insulation around the core keeps that heat in until you need it, and on milder days you can set the heater to charge less, so you only store what you'll actually use.
Electric storage heaters at Alert Electrical
Electric storage heaters give you a way to heat your home using cheaper overnight electricity. Our range covers trusted names including Creda, Dimplex and Rointe, with outputs from 500W to 1.5kW to suit everything from a small bedroom to a large living space. Free UK delivery applies to orders over £100, which covers every storage heater in the range.
How do storage heaters work?
A storage heater charges overnight, when electricity is typically cheaper, and stores that energy as heat in a core of dense, insulated bricks. It then releases the warmth gradually through the day and evening, so your home is comfortable when you need it rather than when the heater is drawing power.
Modern high heat retention models, such as the Dimplex Quantum and Rointe Onyx, are built to hold onto that heat far better than older designs, which means less warmth is lost before you get to use it. They look and mount much like a slimline radiator, so they sit neatly in most rooms.
Manual, electronic and smart controls
Not every storage heater works the same way, and the controls make a real difference to comfort and running costs. Traditional manual models let you set how much heat is stored and released. Electronic controlled models, such as the Creda TSRE and Dimplex XLE, work out how much heat to store, so you're not paying to charge more than the room needs. At the smart end, the Dimplex Quantum RF and WiFi enabled Rointe Onyx let you schedule and adjust heating remotely, so warmth follows your routine.
Before you buy
Storage heaters usually need to be connected to an off-peak supply, so it's sensible to have a qualified electrician confirm your wiring and metering before installation. As a rule of thumb, lower outputs suit smaller rooms and higher outputs suit larger spaces.
Our storage heaters buying guide walks through sizing in more detail, and our team is happy to help if you're unsure which model fits your home.
Frequently Asked Questions
Usually, yes, though it depends on your tariff. Economy 7 tariffs typically give you around seven hours of lower-priced electricity overnight, but the exact hours and rates vary by supplier and region, so check with your provider before you decide.
If you're considering the Quantum range, it's also worth looking at the British Gas Dimplex Quantum Tariff, which was designed specifically for these heaters. Eligibility and pricing are set by British Gas, so confirm the current details with them directly.
If your existing heaters are more than a decade or so old, an upgrade can be worthwhile. Older models tend to have weaker insulation and basic controls, so they can release heat when you're out and run out of it in the evening.
Newer heaters retain heat for longer and give you far more control over when it's released. Dimplex reports that Quantum heaters can cost up to 27% less to run than a standard storage heater, though your own savings will depend on your tariff, home and usage.