The Cost-Effectiveness of Electric Boilers: A Comprehensive Analysis

n the race to achieve the UK’s Net Zero by 2050, homeowners are reevaluating their heating systems with sustainability in mind. While gas boilers have long been the standard, the shift towards greener alternatives is gaining momentum. Enter electric boilers—specifically, the ELEKTRA Smart BPC and Guival Small BPL. These modern marvels are not only more eco-friendly but also offer superior efficiency and safety.

In our latest article, we compare these innovative electric combi boilers with a traditional 30kW gas boiler, highlighting the key differences in energy usage, costs, and environmental impact. If you’re considering future-proofing your home and reducing your carbon footprint, this read is a must. Discover why the ELEKTRA Smart BPC and Guival Small BPL might just be the smarter choice for a greener future.

Electric boilers have surged in popularity as homeowners and businesses alike search for energy-efficient heating solutions. This blog will dissect the cost-effectiveness of electric boilers, presenting a thorough analysis without any fluff, aiming directly at the heart of what makes these systems both an economically and environmentally sound choice.

Understanding Electric Boilers: A Primer

Electric boilers are a dynamic alternative to traditional gas or oil-fired boilers. They function by heating water through electrical energy, which is then circulated throughout your home or business to provide heating and hot water. This method is known for its clean operation, absence of combustion gases, and straightforward maintenance requirements.

The Initial Investment: Crunching the Numbers

While electric boilers often come with a higher upfront cost compared to their combustion counterparts, this is only part of the story. The installation process is usually less invasive, as there’s no need for gas lines or exhaust flue systems. This simplicity can reduce initial installation costs, effectively saving dollars off the upfront expense.

Running Costs: Efficiency at Its Core

Electric boilers boast nearly 100% efficiency rates because almost all the electricity they consume is turned directly into heat, with minimal loss. In contrast, traditional boilers typically achieve 80-90% efficiency. This stark difference means electric boilers can deliver significant savings over time, especially in areas where electricity costs are favourable.

Operational Savings: Long-Term Benefits

One of the most appealing aspects of electric boilers is their minimal maintenance requirements. Without the complexities of combustion engines, the likelihood of costly repairs and maintenance decreases significantly. Additionally, electric boilers are not subject to the same regulatory inspections as gas boilers, potentially reducing long-term operational costs.

Environmental Impact: A Greener Alternative

Choosing electric boilers contributes to a smaller carbon footprint. When paired with renewable energy sources like solar or wind power, the environmental benefits are even more pronounced, making electric boilers a key player in the pursuit of sustainable energy solutions.

Comparing Alternatives: Electric Boilers in the Market

When evaluating the cost-effectiveness of electric boilers, it’s crucial to compare them with other heating technologies. Heat pumps, for instance, are often touted for their efficiency. However, electric boilers excel in climates where temperatures frequently drop below freezing, a niche that heat pumps struggle to fill efficiently.

Incentives and Rebates: Extra Savings

Various incentives and rebates are available for those opting for more energy-efficient systems like electric boilers. These can dramatically reduce the net cost, enhancing the overall value proposition of electric boilers and making them an even more attractive investment.

Real-World Applications: Case Studies

To solidify the understanding of electric boilers’ cost-effectiveness, let’s look at real-world applications. In residential settings, homeowners report substantial savings on their energy bills, particularly those who have paired their systems with smart thermostats and other energy-saving technologies. Businesses, too, have seen a reduction in operational costs after switching to electric heating solutions.

The Future of Heating: Trends and Predictions

The trend towards electric heating solutions is growing, driven by advancements in technology and increasing environmental awareness. As the grid becomes greener, the case for electric boilers only strengthens, positioning them as a forward-thinking choice for both new builds and retrofits.

Financial Implications: Total Cost of Ownership

To fully appreciate the cost-effectiveness of electric boilers, one must consider the total cost of ownership (TCO). This comprehensive calculation includes the initial purchase price, installation costs, ongoing operating expenses, maintenance fees, and potential savings from energy efficiency and government incentives. By calculating the TCO, homeowners and businesses can make more informed decisions, weighing the upfront costs against the long-term savings.

Price Stability and Energy Dependence

Another critical aspect to consider is the stability of electricity prices compared to gas. While electric rates can fluctuate, they are generally more predictable than gas prices, which can be volatile due to geopolitical tensions and market dynamics. This predictability allows for more accurate budgeting and financial planning when using electric boilers. Moreover, using electric boilers reduces dependence on fossil fuels, aligning with global trends toward energy diversification and sustainability.

Technology and Innovation: Enhancing Electric Boiler Appeal

Technological advancements continue to enhance the appeal of electric boilers. Modern electric boilers are equipped with sophisticated controls and sensors that optimise energy use and adapt to changing conditions. These smart systems can be integrated with home automation technologies, allowing users to control heating remotely and adjust settings based on real-time data, further improving energy efficiency and cost-effectiveness.

The Role of Renewable Energy

The synergy between electric boilers and renewable energy sources cannot be overstated. As more homes and businesses install solar panels or wind turbines, the logic of pairing these renewable systems with electric boilers becomes increasingly compelling. This integration not only reduces reliance on grid-supplied electricity but also maximises the environmental benefits, making electric boilers an integral part of a holistic approach to sustainable living.

Community Impact and Wider Adoption

Adopting electric boilers can also have a positive impact on communities by reducing local air pollution. This is particularly relevant in urban areas, where reducing emissions from heating is crucial for improving air quality. Additionally, as more people adopt electric boilers, economies of scale may reduce costs further, accelerating their uptake and community-wide benefits.

Conclusion: Weighing the Pros and Cons

In conclusion, while the initial cost of electric boilers may be higher, the long-term savings, minimal maintenance, and environmental benefits present a compelling case for their adoption. As we transition to more sustainable energy sources, the role of electric boilers is set to become even more pivotal in the landscape of home heating solutions.


Electric boilers stand out as a testament to modern engineering, offering a blend of efficiency, convenience, and sustainability. Whether you’re building a new home or upgrading your current heating system, the advantages of going electric are clear and compelling, making it a worthwhile consideration for any cost-conscious and environmentally aware consumer.

Air Source Heat Pump vs Electric Combi Boiler – Part 2


Choosing Between a 12kW Electric Combi Boiler and an ASHP with a Hot Water Tank: The Real Deal.

Updated September 2024


Selecting the right heating solution for your home isn’t just about ticking boxes; it’s about finding the perfect fit for your budget, lifestyle, and sustainability goals. In this post, we’ll compare our 12kW Elektra Easy.BPL electric combi boiler head-to-head against an air source heat pump (ASHP) paired with a 200L hot water storage tank, the most recommended alternative for UK homes: Let’s dive into the key factors—costs, efficiency, and impact—so you can make the most informed choice.

Energy Usage in the Average UK Home

The average UK household consumes about 2,700 kWh of electricity and 11,500 kWh of gas annually. Typically, around 9,200 kWh is used for heating and hot water in a typical three-bedroom home and a 2.4 average occupancy.

Source: https://www.ofgem.gov.uk/

Upfront Costs: The Inicial Outlay

When comparing the initial costs, the differences are substantial:

FeaturesAir Source Heat Pump (ASHP)12kW Electric Combi Boilers
Appliance cost£8,000 to £14,000 £1,900
Installation Cost£4,500 to £6,000£1500 (average)
Additional costs (home refurb, change radiators, etc)£1000 to £5000£150 (CH Filter, Isolator switch, MCB, Water Treatment System)
200 litres hot water tank£1,500n/a
Estimate Total Cost£15,000 to £26,500£3,550

Our ELEKTRA EASY.BPL electric combi boiler offers a significantly lower upfront investment. With a total of £3,550 versus £26,500 for the ASHP setup, the choice is clear if the initial cost is a priority. 


Annual Running Costs: Day-to-Day Expenses

Now, let’s look at what it costs to run each system annually:

12kW Electric Combi Boiler:
Heating and Hot Water Consumption: 9,200 kWh annually.

Cost: 9,200 kWh × £0.2236 per kWh = £2,057.12 annually.

– Maintenance: £90 annually.


Total Annual Cost (including a £219.44 standing charge): £2,366.56.

Air Source Heat Pump (ASHP):


– Electricity Required (COP, of 2.5): 9,200kWh / 2.5 = 3,680kWh annually.

– Cost: 3,680 kWh × £0.2236 per kWh = £822.85 annually.

– Additional Electricity for Hot Water Tank: 2,500 kWh average annually.

– Cost for Hot Water Tank: 2,500 kWh x £0.2236 per kWh = £559.00

– Maintenance: £200 annually.

Total Annual Cost (including a £219.44 standing charge and maintenance): £1,801.29.


Verdict: The ASHP has lower annual running costs, saving about £565 per year. However, the significant upfront investment means you’ll be waiting a long time to see those savings add up.


Break-Even Point: When Does an ASHP Make Financial Sense?

The break-even point helps us determine when the ASHP’s savings outweigh its higher initial cost:

Upfront Cost Difference:

12kW ELEKTRA SMART.BPL: £26,500 – £4,000* = £22,500.

Annual Savings:

£2,366.08 (Electric Boiler) – £1,801.29 (ASHP) = £565.27

Break-Even Point:

ASHP + 200lts Hot Water Tank
vs Elektra SMART.BPL
£22,500 / £565.27
≈ 39.80 years

Results: It would take over three decades for the ASHP setup to make up for its hefty initial cost.

If we take into account the UK Government grant of up to £7,500, the break-even point still will be about 26.5 years ahead.


But there’s more to consider…

Now, let’s adjust the annual savings by subtracting the probability of repair costs every 2 years:

– 2-Year Average Repair Cost for an Electric Combi Boiler: £200 = £100 annually.

– 2-Year Average Repair Cost for ASHP: £600 = £300 annually.

Biannual Repair Cost Difference:

£300 (ASHP) – £100 (Electric Combi Boiler) = £200.

Adjusted Annual Savings: £565.27 (initial annual savings) – £200 (biannual repair cost difference) = £365.27

When factoring in repair costs on a biannual basis, the breakeven point moves to approximately 61.59 years and 41 years.

These costs add up over time and should be factored into the overall cost of ownership. While both systems have their merits, the higher repair costs associated with ASHPs make it important to carefully consider whether the potential energy savings justify the added expenses over the system’s lifetime.


Space Requirements: Size Does Matter

Space is another critical factor. The 12kW Electric Combi Boiler is compact and can be installed almost anywhere, requiring no additional space for a flue or hot water tank, it can fit into an average kitchen cupboard or under the stairs.

On the other hand, ASHP units are larger, usually installed outside, and require sufficient space for airflow and maintenance and the hot water storage tank adds to the space requirements significantly measuring in height an average of 1.2m in height, 76 cm in length and about 60 cm in width.

To effectively provide hot water for a 3 bedrooms home a hot water tank will be needed adding to the space requirement of an ASHP installation.

If you have limited space or aesthetic concerns, the electric boiler might be the more convenient choice.

Pros and Cons: A Quick Comparison

FeaturesAir Source Heat Pump (ASHP)12kW Electric Combi Boilers
Upfront CostHigher (up to £26,500)Lower ( about £3,550 to £4,000)
Annual Running CostLower (£1,801.29)Higher (£2,366.08)
MaintenanceMore frequent, higher cost of parts and labour.Less frequent, lower cost of parts and labour.
Energy EfficiencyVery high (COP of 2.5 to 4)High, improving with grid renewables
Space RequirementsRequires outdoor space and substancial indoor space.Compact, versatile installation. Can be installed almost anywhere.
Financial Point≈26 to 41 years to break evenLower upfront costs
Environmental ImpactLow emissions, high efficiencyLow emissions, improving with renewables

With the information you have now, which system would you choose?

Short-Term Choice: If minimizing upfront costs is your priority, the electric combi boiler is unbeatable.

Mid-Term Choice: Our 12kW electric combi boiler strikes a good balance between affordability and operational efficiency.

Long-Term Choice: The ASHP with a hot water tank may offer lower running costs, but the high initial expense and lengthy break-even period make it a less accessible option for many.

A break-even point of +30 years will be even longer if take into account possible repair and spare parts needed during these years.

If you’re after a heating solution that combines cost-effectiveness, simplicity, and reliability, our 12kW electric combi boiler is a smart choice for UK homeowners. It provides efficient heating without the financial strain of a substantial upfront investment, offering both peace of mind and value for money.

For more information on our range of electric combi boilers and to find the right solution for your home, visit our website here: Electric Combi Boiler Company


What’s Your Heating & Hot Water Priority?

Are you more focused on reducing your upfront investment or minimizing your long-term running costs?

How do you weigh the importance of initial costs versus ongoing savings in your decision-making process?

Share your thoughts below or reach out to us directly—we’re here to help you find the perfect heating solution for your home!
.


Sources:

Heating Systems: Energy Saving Trust, Heating Systems Ofgem – Energy Consumption Data: link, Renewable Heat Incentive: link, British Gas – Energy Costs: link, National Grid – Energy Pricing: link. 200 litres hot water tank for heat pump installation: link. Cost of ASHP: link. Cost of servicing a heatpump: link

Air Source Heat Pump vs Electric Combi Boiler


Comparing Our 12kW Electric Combi Boilers to an ASHP Installation Without a Hot Water Storage Tank


Choosing the right heating system for your home can be overwhelming, especially with the UK’s ambitious Net Zero targets for 2050. With the government encouraging a shift towards sustainable heating options, homeowners are faced with important decisions about which system best fits their needs.

In this post, we’ll compare our 12kW Elektra Smart.BPC and Small.BPL electric combi boilers with a typical air source heat pump (ASHP) installation that doesn’t include a hot water storage tank. Let’s explore how each option stacks up for your home.

Energy Usage in the Average UK Home

The average UK household consumes about 2,700 kWh of electricity and 11,500 kWh of gas annually. Typically, around 9,200 kWh is used for heating and hot water in a typical three-bedroom home and a 2.4 average occupancy.

Switching to an electric boiler like the Elektra Smart BPC or the Small BPL eliminates the need for fossil fuels at the point of use, which directly reduces your carbon footprint—a significant advantage as the grid becomes greener.

Source: https://www.ofgem.gov.uk/

Upfront Costs: Why Initial Investment Matters

When comparing the initial costs, the differences are substantial:

FeaturesAir Source Heat Pump (ASHP)12kW Electric Combi Boilers
Appliance cost£8,000 to £14,000£1,299 to £1,900
Installation Cost£4,500 to £6,000£1500 (average)
Additional costs (home refurb, change radiators, etc)£1000 to £5000£150 (CH Filter, Isolator switch, MCB, Water Treatment System)
Estimate Total Cost£13,500 to £25,000£2,949 to £3,550

The ASHP is a much larger investment, costing £10,550 to £21,500 more upfront. 


Annual Running Costs: Day-to-Day Expenses

Now, let’s look at what it costs to run each system annually:

12kW Electric Combi Boiler:
Heating and Hot Water Consumption: 9,200 kWh annually.
Cost: 9,200 kWh × £0.2236 per kWh = £2,057.12 annually.
Total Annual Cost (including a £219.44 standing charge): £2,276.08.
– Maintenance: £90 annually.

Air Source Heat Pump (ASHP):
– Electricity Required (COP, of 2.5): 9,200kWh / 2.5 = 3,680kWh annually.
– Cost: 3,680 kWh × £0.2236 per kWh = £822.85 annually.
Total Annual Cost (including a £219.44 standing charge): £1,041.81.
– Maintenance: £200 annually.

While the ASHP offers lower running costs, saving over £1,200 annually, it’s crucial to consider the much higher upfront investment. But when does the ASHP actually start saving you money?


Break-Even Point: When Does an ASHP Make Financial Sense?

The break-even point helps us determine when the ASHP’s savings outweigh its higher initial cost:

Upfront Cost Difference:

Cheapest ASHP vs 12kW Small.BPL: £13,500 – £2,949 = £10,551.

More expensive ASHP vs 12kW ELEKTRA SMART.BPL: £25,000 – £3,550 = £21,450.

Annual Savings: running cost + maintenance:

£2,366.08 (Electric Boiler) – £1,241.81 (ASHP) = £1,124.27

Break-Even Point:

Cheapest ASHP vs Small.BPLMore expensive ASHP vs Elektra SMART.BPL
£10,551 / £1,124.27£21,450 / £1,124.27
≈ 9.38 years≈ 19.08 years

In other words, if you plan to stay in your home for at least ten years, the ASHP may eventually save you money if compared to our more economical Small.BPL boiler. Using the highest figures, it would take approximately 19.08 years for the ASHP’s lower running costs to offset its higher upfront costs when compared to the ELEKTRA SMART.BPL electric combi boiler. This calculation includes the maintenance costs for both systems.

But there’s more to consider…


Now, let’s adjust the annual savings by subtracting the probability of repair costs every 2 years:

– 2-Year Average Repair Cost for an Electric Combi Boiler: £200 = £100 annually.

– 2-Year Average Repair Cost for ASHP: £600 = £300 annually.

Biannual Repair Cost Difference:

£300 (ASHP) – £100 (Electric Combi Boiler) = £200.

Adjusted Annual Savings: £1,034.27 (initial annual savings) – £200 (biannual repair cost difference) = £834.27

When factoring in repair costs on a biannual basis, the breakeven point moves to approximately 11.41 years and 23.20 years. This means it would take just over 11 years for the ASHP’s savings to offset the higher upfront and repair costs compared to the cheapest electric combi boiler while for the more expensive ASHP this translates to 23.20 years.

These costs add up over time and should be factored into the overall cost of ownership. While both systems have their merits, the higher repair costs associated with ASHPs make it important to carefully consider whether the potential energy savings justify the added expenses over the system’s lifetime.


Space Requirements: Size Does Matter

Space can be a significant consideration. The 12kW Electric Combi Boiler is compact and versatile, easily installed in most homes without requiring additional space for a flue or hot water tank. Conversely, ASHP units are larger, need to be installed outdoors, and require sufficient space for airflow and maintenance. To effectively provide hot water for a 3 bedrooms home eventually a hot water tank will be needed adding to the space requirement of an ASHP installation. For homes with limited space or where aesthetics are a concern, the electric boiler may be the more practical choice.

Pros and Cons: A Quick Comparison

FeaturesAir Source Heat Pump (ASHP)12kW Electric Combi Boilers
Upfront CostHigher (£13,500 to £25,000)Lower (£2,949 to £3,550)
Annual Running CostLower (£1,334.81)Higher (£2,376.08)
MaintenanceMore frequent, higher cost of parts and labour.Less frequent, lower cost of parts and labour.
Energy EfficiencyVery high (COP of 2.5 to 4)High, improving with grid renewables
Space RequirementsRequires indoor and outdoor space.Compact, versatile installation. Can be installed almost anywhere.
Break-Even Point9 to 19 years to break evenShort to mid-term savings
Environmental ImpactLow emissions, high efficiencyLow emissions, improving with renewables

Which Heating System Is Right for You

So, what’s the best choice? The 12kW Electric Combi Boilers offer a budget-friendly, compact, and environmentally conscious option aligned with the UK’s NetZero targets, especially for homes where ASHPs might not be feasible. While the ASHP provides long-term savings and higher efficiency (COP), its higher upfront cost and greater space requirements make it a more complex investment to decide upon.

Ready to Upgrade Your Heating System? Explore our range of fully certified electric combi boilers and discover the sustainable, budget-friendly option that’s perfect for your home. Visit Electric Combi Boiler Company today to learn more.


We want to hear from you!

Would you prefer the immediate savings of an electric boiler, or are you considering an ASHP for long-term benefits? How important are space and ease of installation in your decision? What are your thoughts on the UK’s push towards Net Zero and its impact on home heating choices?

Share your thoughts in the comments below—your insights could help others make the right choice for their homes.


Sources: Heating Systems: Energy Saving Trust, eating Systems Ofgem – Energy Consumption Data: link, Renewable Heat Incentive: link, British Gas – Energy Costs: link, National Grid – Energy Pricing: link.

Running Costs explained: Electric Boilers vs Gas Boilers – Updated August 2024

n the race to achieve the UK’s Net Zero by 2050, homeowners are reevaluating their heating systems with sustainability in mind. While gas boilers have long been the standard, the shift towards greener alternatives is gaining momentum. Enter electric boilers—specifically, the ELEKTRA Smart BPC and Guival Small BPL. These modern marvels are not only more eco-friendly but also offer superior efficiency and safety.

In our latest article, we compare these innovative electric combi boilers with a traditional 30kW gas boiler, highlighting the key differences in energy usage, costs, and environmental impact. If you’re considering future-proofing your home and reducing your carbon footprint, this read is a must. Discover why the ELEKTRA Smart BPC and Guival Small BPL might just be the smarter choice for a greener future.

Choosing the right heating system is crucial for your home’s comfort, efficiency, and environmental impact. For years, gas boilers have dominated British households, but with the UK’s commitment to Net Zero by 2050, there’s a growing shift towards greener alternatives.

Heat pumps are a popular option, but they’re not suitable for every home. Enter electric boilers — an efficient, eco-friendly choice that’s gaining traction. In this post, we’ll compare the ELEKTRA SMART.BPC and Small.BPL 12kW electric combi boiler with a standard 30kW gas boiler to help you make an informed decision.

Energy Usage in the Average UK Home

The average UK household uses around 2,700 kWh of electricity and 11,500 kWh of gas annually, with about 9,200 kWh required for heating and hot water in a three-bedroom home.


Switching to an electric boiler like the ELEKTRA SMART.BPC or Small.BPL 12kW eliminates the need for fossil fuels at the point of use, reducing your carbon footprint. While electricity production still involves some fossil fuels, the energy efficiency of electric boilers generally outperforms gas boilers.

As the UK increasingly adopts renewable energy sources, the environmental and financial benefits of electric boilers will continue to grow. Some homes are already able to heat with minimal costs, a trend likely to expand as renewable energy becomes more widespread.

Cost Considerations: Gas vs. Electric

Gas boilers are cheaper upfront and have lower running costs in the short term. However, the ELEKTRA SMART.BPC or Small.BPL 12kW electric combi boiler, when paired with solar PV and battery storage, can offer significant long-term savings.

While electricity is typically more expensive than gas, the higher efficiency of electric boilers can offset this difference. For homeowners thinking long-term, investing in an electric boiler could prove to be more cost-effective, particularly as energy prices and environmental policies evolve.

Sustainability: Future-Proofing Your Home


Electric Boiler Vs Gas Boiler

When it comes to sustainability, electric combi boilers are the clear winner. They align perfectly with the UK’s Net Zero ambitions by eliminating the risks associated with gas boilers, such as carbon monoxide leaks. Installation is also simpler, especially in properties without an existing gas supply.

The ELEKTRA SMART.BPC and Small.BPL 12kW  not only align with the UK’s Net Zero goals but also offer a quiet, efficient, and clean heating solution. It’s a forward-thinking choice for homeowners who want to reduce their environmental impact and future-proof their homes.

Looking to future-proof your home? The ELEKTRA SMART.BPC and Small.BPL 12kW electric combi boilers are the smart investment, offering a clean, quiet, and efficient heating solution that’s ready to meet the challenges of tomorrow.

Quick Comparison: 30kW Gas Boiler vs. ELEKTRA Smart BPC Electric Combi Boiler

Feature30 kW Gas Combi Boiler12kW electric combi boiler with inbuilt tank
Boiler price£800 to £2,700
£1299 to £1900
(Small.BPL – Elektra Smart.BPL)
Installation£1500 (average)£1500 (average)
MaintenanceMandatory annuallyEvery 2 years (recommended)
Maintenance cost£100 – £150£180
Spare partsEasy to findEasy to find
Installation FlexibilityRequires a flue and gas supply.No flue required. Compact size. Can be installed virtually anywhere.
Fuel requiredGas and ElectricityElectricity
Meter Standing Charge per day91.51p (31.41p + 60.1p)60.1p
Energy Efficiency90-94%99.8%
Noise during operation48-50dB
Noise of burning gas and mechanical parts
30 dB.
Quiet operation due to minimal amount of moving parts and no burning fuel noise.
RisksRisk of carbon monoxide poisoning and gas leaks.N/A
CO2 emissions at point of useYES: 0.2kg/kWNO
CO2 emissions per kW of usage6.42kg2.7kg (subject to supplier)

The Smarter Choice for a Greener Future

Conclusion

If you’re looking to future-proof your home and reduce your environmental impact, consider switching to an electric boiler. The ELEKTRA SMART.BPC and Small.BPL 12kW offer a cleaner, quieter, and more efficient way to heat your home, aligning with both your financial goals and the UK’s Net Zero ambitions.

Ready to explore your options? Check out the ELEKTRA SMART.BPC or Small.BPL 12kW today and take the first step towards a smarter, greener future.