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Heat pump vs boiler upgrade: which option makes more sense during a renovation?

heat pump outside grey building
Switching to a heat pump could make more sense during your renovation (Image credit: MAXSHOT/Getty Images)

Summary of this article: Renovating a home isn’t just about how it looks, it’s about modernising behind the scenes so that your home lasts into the future. Installing an energy-efficient heat pump instead of a new boiler is one of the best choices you can make to help ensure your home is future-proofed, and it gives your home strong buyer appeal, should you ever choose to sell.


Renovating a home isn’t just about choosing a new kitchen or bathroom, it’s about making improvements that will benefit you for many years to come.

Upgrading your heating system can be one of the most fundamental steps you take in helping to reduce your future energy bills, which is why it’s important to weigh up the pros and cons of installing a heat pump vs a boiler upgrade early on in your project.

Opting for a quick fix, such as a boiler upgrade, isn’t always the best solution in the long-run according to the experts at E.ON Next, and here’s why.

1. Short-term vs long-term gains

While it can be tempting to choose a new boiler if it feels like an easier option, weighing up what you want to achieve in the long-term is advisable when choosing between a boiler upgrade and a heat pump. Although replacing a boiler can be a relatively quick process, basing your decision on speed isn’t always the best foundation for future-proofing your home.

Installing a heat pump may take a little longer, but you will reap the rewards on a longer-term basis. Rising gas, oil and LPG costs mean including a heat pump in your renovation plans is a must-do for homeowners looking for independence from fluctuations in fossil fuel prices. Adding a new boiler on the other hand, will result in you having no option to break free from the gas and oil prices, and supply chain.

2. Including a heat pump now removes the risk of future work

Undertaking a renovation is a major project that many homeowners will only complete once in a lifetime, and even if everything goes to plan, the disruption can mean it’s not something you want to repeat too often.

It’s why working with the experts at E.ON Next to specify a heat pump as part of your renovation plans will help prevent you from needing to undertake more work in the future.

Heat pump design is based on heat loss calculations, which E.ON Next will use to create a bespoke whole house system. This means that deciding to install one from the start of your renovation allows you to get the fundamentals right, including the level of insulation you include and what type of radiators or underfloor heating you need. Specifying a boiler now, but then deciding to change to a heat pump in the future could result in additional work and costs that could have been avoided.

hand holding model of house wrapped in thin knitted blue scarf

Including a heat pump at the start of your renovation plans will result in a home that's perfectly suited to one (Image credit: Shutterstock)

3. A heat pump aligns with government-led energy initiatives

Even though you may plan on living in your home for many years, at some point in the future you may decide to move. With policies such as the Future Homes Standard, Warm Homes Plan and the Clean Energy Campaign all designed to ensure new-build homes are low-carbon and energy efficient, it’s wise to ensure your home renovation also meets these directives.

Not only will you benefit from the fact your home is energy efficient and low-carbon while you live in it, it could improve your buyer appeal when it’s time to sell. Installing a heat pump will improve your EPC rating, and the Right Move’s Greener Homes Report, 2025 shows that homes with a better EPC rating attract what’s referred to as a ‘Green premium’ – or in other words, a better selling price.

heat pump outside building with brick walls

Installing a heat pump will mean your home is in line with Government-led initiatives (Image credit: Fokkebok/Getty Images)

4. Heat pump vs boiler – which suits future electrification projects more?

Although you may choose to restore original architectural features in your home, this doesn’t mean you need to adopt some of the more dated elements such as redundant boilers or draughty and poorly insulated windows.

Modernisation of your home is the more sensible approach, particularly if you are gearing up to further electrify or add additional elements to your home, such as an E.ON Next EV charger or solar panel system.

When combined with an air source heat pump, you can benefit from E.ON Next’s smart energy tariffs that could add further savings to your energy bills.


And let’s not forget the financial benefits of switching to a heat pump rather than a boiler when you renovate. With access to initiatives such as the Boiler Upgrade Scheme still available, you could save up to £7,500 on the cost of your heat pump purchase and installation.

Combine this bonus with the 0% finance offer from E.ON Next and it could cost you less to install a heat pump than you might think.

And, with the Energy Saving Trust predicting savings of up to £260 on your energy bills when upgrading from an old G-rated gas boiler to a new heat pump, it’s clear why there’s only one real winner in the heat pump vs old boiler debate.