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If your home is heated by oil, you will already know it comes with a few frustrations. Prices change without warning, you need to plan deliveries in advance, and you’re always at the mercy of global fuel markets. For many households, it feels like an outdated way to heat a modern home.
The obvious question is whether switching to electric heating will actually save you money. The honest answer? It depends on what you replace it with. A simple swap from oil to basic, cheap electric radiators is unlikely to be cheaper, but a properly designed electric heating system could be.
A typical UK home using oil will consume around 2,000 to 2,500 litres per year. At current prices, that usually works out between £1,800 and £2,750 annually, although colder winters or price spikes could push this higher.
The key issue with oil is that you have no flexibility. You buy it when you need it, and you pay whatever the market is charging at the time. There’s very little opportunity to reduce costs through smarter usage.
Electric heating has a reputation for being expensive, but that reputation is mostly based on older systems and simple electric heaters running on standard tariffs.
Modern ELKATHERM® electric radiators are very different. They’re more efficient (with a German A++ energy rating!), more responsive, and designed to retain heat rather than constantly consume electricity. When people compare oil to basic electric panel heaters, the comparison is not really fair.
ELKATHERM® electric radiators are not night storage heaters, and they do not rely on off-peak tariffs to operate. Instead, they contain a chamotte heat storage core. This core heats up quickly and stays warm for hours with minimal top-ups, providing both convected and radiant heat. The result is a radiator that delivers steady, comfortable warmth while only using small amounts of electricity to maintain temperature.
That means you get fast response when you need heat, but also built-in thermal storage that reduces constant energy cycling compared to cheaper electric heaters.
Hot water is often where a lot of energy is wasted in older oil systems, especially when using inefficient cylinders or boilers that constantly reheat stored water. This is where a Sunamp heat battery can make a big difference.
Sunamp Thermino heat batteries store heat in a compact, highly insulated unit rather than keeping a large tank of hot water permanently heated. It charges using electricity when required, then delivers mains pressure hot water on demand whenever you turn on a hot tap or shower.
Thanks to Sunamp’s innovative phase change material (PCM), it reduces standing heat loss compared to traditional hot water cylinders. It also works very well in electric homes because it can be integrated into a fully electric setup without relying on gas or oil backup systems.
To make a fair comparison, it’s best to look at total household heat demand rather than just fuel type.
A typical oil heated home might spend between £1800 and £2750 per year on heating and hot water combined.
If that same home switched to basic electric heating and an inefficient hot water system, costs could be significantly higher. This is where electric heating gets its reputation for being expensive. However, when you choose efficient heating systems like ELKATHERM® electric radiators and a Sunamp Thermino heat battery, the picture changes.
ELKATHERM® electric radiators reduce wasted energy through their heat storage core, while the Sunamp system reduces heat loss from hot water storage. Together, they create a more controlled and efficient electric system that is not dependent on constant energy input in the same way as traditional setups.
In well insulated homes, an energy-efficient HeatElectric heating system can reduce running costs significantly.
The biggest savings do not come from electricity being “cheap” versus oil. They come from efficiency, heat retention, and better system design.
ELKATHERM® radiators contain a ceramic fireclay storage core which heats up quickly and stays warm for hours with minimal electrical top-ups. Sunamp reduces wasted energy from stored hot water by eliminating most of the standing heat loss you get with traditional cylinders. Together, they create a system that is more energy efficient and creates a more comfortable home.
Switching tends to make sense when an oil boiler is aging, when fuel deliveries are becoming inconvenient, or when homeowners want to move towards a simpler and more modern energy setup. It is also particularly relevant for homes that are planning longer term upgrades, such as solar PV and battery storage, where electric heating and hot water systems integrate perfectly.
Switching from oil to electric heating is not automatically cheaper, but if you choose the right combination of systems, it can be.
ELKATHERM® electric radiators provide efficient, responsive heating using a chamotte core that reduces constant electrical demand. Sunamp Thermino heat batteries provide a highly efficient way to produce hot water, without the losses associated with traditional cylinders. If you choose to combine these systems with solar PV, you could even heat your home for free.
For many homes, this combination offers a simpler, more modern alternative to oil, with stable running costs, improved efficiency, and far greater control over how energy is used.
