The £20,000 heat pump question

When solar, batteries, and electric heating may be the best option
  • Posted by Emily Jade
  • 8 min read (1124 words)
  • Last updated 02 Sep, 2026
  • Category: Heat Pumps

Many homeowners are being told that a heat pump is the future of home heating. While heat pumps are an excellent solution for many properties, they aren’t the right fit for every home. For some households, a combination of solar panels, battery storage, and modern ELKATHERM® electric heating can deliver low upfront costs, less disruption, and significant savings on your energy bills.

If you’ve been quoted £15,000 to £20,000 for a heat pump installation and are wondering whether there’s another way, this guide will help you to understand your options.

The reality of heat pump costs

Heat pumps have become increasingly popular as the UK moves towards low-carbon heating. Even with government grants available, many homeowners still face a substantial investment once installation, upgrades, and additional work are taken into account.

In many cases, installing a heat pump isn’t simply a matter of replacing your boiler. Depending on your home, you may also need larger radiators, upgraded pipework, improved insulation, or even changes to your hot water system. These additional works can quickly increase the overall cost and complexity of the project.

That doesn’t mean a heat pump is a bad investment. In a well-suited property, it can provide highly efficient heating for many years. The key is recognising that every home is different.

Not every home is heat pump ready

Heat pumps work best when they can provide a steady, low-temperature heat over long periods. Modern, well-insulated homes are often ideal, but older properties can present more of a challenge.

Homes with solid walls, limited insulation, or existing radiator systems designed around a gas boiler may require significant upgrades before a heat pump can operate efficiently. For some homeowners, the disruption and cost of these improvements simply don’t make financial sense.

Looking at the bigger picture

Reducing your energy bills isn’t just about changing the way you heat your home. It’s about reducing the amount of electricity you buy from the grid. This is where solar panels and battery storage can make a dramatic difference.

By generating your own electricity during the day, and storing surplus energy for use later, you can power much of your home using energy you’ve produced yourself. That electricity can then be used for lighting, appliances, electric heating, hot water, and even charging an electric vehicle.

Instead of focusing solely on making your heating more efficient, you’re reducing the cost of the electricity used throughout your entire home.

Modern electric heating has changed

Many people still think of electric heating as expensive night storage heaters, or inefficient portable radiators.

ELKATHERM® modern electric radiators use advanced ceramic heat cores and intelligent controls to provide consistent, comfortable heating while avoiding the temperature swings associated with older electric heaters.

Each room can be controlled independently, allowing you to heat only the spaces you’re actually using. For households replacing ageing storage heaters, oil heating, or LPG systems, this level of control can make a significant difference to running costs.

Solar makes electric heating far more attractive

One of the biggest criticisms of electric heating has always been the cost of electricity. However, the rise of rooftop solar has changed the equation.

During daylight hours, your solar panels can provide free electricity directly to your heating system. If you also have battery storage, excess solar energy generated during the day can be stored and used during the evening when electricity prices are higher.

Many homeowners also take advantage of off-peak electricity tariffs, charging their battery overnight at lower rates before using that stored electricity throughout the following day. Rather than paying peak electricity prices, you’re making use of your own generation and cheaper energy whenever possible.

Don’t forget about hot water

Heating your home is only part of your total energy use. Hot water can account for a significant portion of household electricity consumption. Sunamp Thermino heat batteries allow you to store heat instead of hot water, meaning you can heat your water overnight using cheaper electricity, or with surplus solar generation during the day.

Unlike a traditional hot water cylinder, a Sunamp provides mains-pressure hot water without storing large volumes of water, making it an attractive option for many homes.

Every home is different

It’s tempting to look for a single ‘best’ heating system, but there isn’t one.

A well-insulated new build may benefit enormously from a heat pump. An older property with limited insulation might achieve better value by combining solar panels, battery storage, and efficient electric heating.

Some homes may even benefit from a hybrid approach, keeping an existing boiler while reducing electricity costs with solar and battery storage before making further upgrades in the future. The right answer depends on your property, your budget, and how you use energy.

Think about the whole energy system

Instead of asking “Should I buy a heat pump?”, a better question may be “What’s the smartest way to reduce my home’s overall energy costs?”.

For most households, the answer isn’t one single technology. It’s a combination of generating electricity with solar panels, storing it in a battery, using smart tariffs, installing efficient electric heating and making the most of energy unit of energy you produce.

When these technologies work together, they can deliver impressive savings while giving you greater independence from rising energy prices.

Is a heat pump right for you?

If you’re considering a heat pump, it’s worth exploring all of the available options before making a decision.

We help homeowners design complete home energy systems rather than recommending the same solution for every property. Whether that’s solar panels, battery storage, electric heating, hot water solutions, or a combination of technologies, our goal is to help you find the system that makes the most sense for your home.

A heat pump may well be the right choice, but it’s not the only choice. Taking the time to compare all of your options could save you thousands of pounds while creating a home that’s cheaper to run for years to come.

ELKATHERM
Sunamp
Fondital
Powervault
Tesla
Which?
MCS
HIES
Trustmark
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