
What Are Heat Loss Calculations?
Heat loss calculations are performed after a heat loss survey on a property and help understand the heating needs of the property by calculating the heat loss of the properties fabric. Heat loss calculations help an installer understand how much heat the building will loose through though the year.
This calculation is essential for installing the right size heat pump and getting the correct radiators sizing for the property. Having accurate heat loss calculations performed will ensure the efficiency of the system design and prolong the life of the product by making sure the system is not under or over sized putting strain on the system.


Why Use Apex For Your Heat Loss Calculations in Berkshire?
Alongside the technical surveyors, we have a full time, in-house design team with a collective 30+ years of experience in designing heating systems and performing heat loss calculations. Apex Renewable Energy Surveys started in Doncaster which is based in Yorkshire.
Working to the standards and methodology set out in MCS3005-D and the CIBSE Domestic Heating Guide, our service includes:
-
Complete room-by-room heat loss calculations for the full property
-
A detailed heat loss summary
-
Required emitters with outputs at the required flow temperature
-
Details of the proposed equipment (such as SCoP, maximum output, etc)
-
MCS035 Model Performance Estimation
-
MCS020 Sound Calculations
-
Recommended equipment
-
Any site-specific recommendations
As an optional extra, alongside the heat loss calculation, our design team can also provide a completed DNO application form with the relevant unit-specific technical information and assist you with the application process, saving you time with your pre-installation administration.
Our Air Source Heat Loss Calculation Achievements
Heat Loss Calcs
Completed
0
Mw of Heat Loss
Calculated
0
Radiators
Designed
0
MCS Documents
Produced
0
Versions of Our in
House Calculator
0


Understanding Radiator Sizing and Heat Loss Calculations in Berkshire
As part of air source heat pump survey we also provide the full measurements of existing radiators and the room available for future changes. Apex Renewable Energy Surveys understand the importance of sizing radiators correctly with air source heat pumps and our professionally trained office staff specialise in heat loss calculations. This allows them to accurate calculate the correct radiators needed for the designed flow temperature of the ASHP that has been selected for the job.

Key Benefits of Heat Loss Calculations Done by Apex
MCS and DNO Documentation
We provide MCS and DNO documents on our jobs to help alleviate your admin work and process's within in your office making a smoother process for your customers.
You will receive a full radiator schedule stating which radiators need to be replaced what that radiators you need to replace them with.

Air Source Heat Pump Floor Plans in Berkshire
Apex Renewable Energy Surveys will also provide a full floor plan after each survey, giving you a far easier job of planning your new potential installation. Not only does the floor plan make planning the installation run a lot smoother but it allows better communication between you and your customer. The customer will be able to understand which room you are discussing with them at any point, bedroom 1 and bedroom 2 can start to get confusing at some points in discussions with a floor plan guide this can happen much easier. This also allows installers to understand where the radiators are located and the basic information of the cylinder and current boiler locations.







Heat Loss Calculation Costs in Berkshire
Heat loss calculations are very admin heavy and require a lot of knowledge and expertise this can often put up hurdles for new companies or growing companies. Apex Renewable Energy Surveys already have a fully professional established team with years of experience to perform heat loss calculations in a timely manor while making sure the accuracy is kept to high standard. We have built our costing system for heat loss calculations to allow companies a competitive price while also removing the leg work involved.
Increase Sale Conversion Rates in Berkshire
Not only do Apex Renewable Energy Surveys provide professional and accurate surveys but we also get very positive reports from existing installers that we have increased sales conversion rates. This is due to many factors but the main factor for you as installer is that you can explain to your customer that a third party surveying company will be performing the survey. When explained properly this is a massive win for the customer as they will have the trust knowing that a fully experienced professional surveying company will be gathering the information and providing the system design giving them peace of mind that the system will be designed to the property and not to the installers benefit.

.png)




Importance of Heat Loss Calculations in Berkshire
Heat loss calculations are crucial for the effective installation and performance of heat pumps in Berkshire, ensuring energy efficiency, cost savings, and comfortable living conditions. Berkshire, with its varying housing stock and local climate, presents specific challenges that make heat loss assessments essential for optimizing the performance of heat pumps. Additionally, the £7,500 Boiler Upgrade Scheme (BUS) voucher from the UK government offers a significant financial incentive for homeowners, further emphasizing the importance of accurate heat loss calculations.
Here’s a breakdown of why heat loss calculations are so important for heat pumps in Berkshire:
1. Accurate Sizing of the Heat Pump
Optimizing Performance: Heat loss calculations help determine the appropriate size of the heat pump for each property. If a heat pump is oversized, it can lead to inefficiency and increased wear and tear due to frequent cycling on and off. Conversely, an undersized system won’t be able to meet the heating demands, especially during colder months.
Consistent Heating: In Berkshire, where temperatures can drop significantly in winter, proper sizing ensures the heat pump can maintain comfortable indoor temperatures year-round, providing stable and reliable heating even on the coldest days.
2. Local Climate and Environmental Factors
Cold Winters and Warm Summers: Berkshire’s temperate maritime climate, characterized by cool winters and relatively mild summers, requires a system capable of adapting to both ends of the temperature spectrum. Heat loss calculations account for seasonal temperature variations, ensuring that the heat pump can efficiently meet heating and cooling needs.
Wind and Exposure: Properties in rural or exposed areas may experience increased heat loss due to wind exposure. Accurate calculations help ensure the heat pump is powerful enough to counteract these environmental factors.
3. Energy Efficiency and Cost Savings
Minimizing Energy Consumption: Heat loss calculations ensure that the heat pump is properly sized, preventing overuse of energy. Efficiently sized heat pumps consume less energy, resulting in lower heating bills—a significant advantage in Berkshire’s housing market where energy costs are a concern for many homeowners.
Lower Long-Term Costs: An efficiently operating heat pump not only reduces monthly utility bills but also lowers maintenance costs and extends the lifespan of the system, providing long-term financial benefits.
4. Compliance with Building Regulations
Meeting UK Standards: Heat loss calculations are often required to comply with UK Building Regulations, especially Part L, which governs energy efficiency in buildings. This is essential for both new builds and retrofitting older homes, ensuring that the property meets national energy standards.
Planning Permissions: In Berkshire, which has areas with listed buildings and conservation zones, accurate heat loss calculations may be required by local authorities as part of the planning process for heat pump installations.
5. Diverse Housing Stock in Berkshire
Old and New Homes: Berkshire has a mix of housing types, from modern builds to older, less energy-efficient properties. Older homes often have higher heat loss due to poor insulation, requiring more detailed calculations to size the heat pump correctly. Accurate heat loss assessments ensure that even older, less energy-efficient homes can benefit from the energy savings of a heat pump.
Retrofitting Older Properties: Retrofitting heat pumps into older homes can be challenging. Heat loss calculations help identify any insulation or structural improvements needed before a heat pump installation, ensuring maximum efficiency and performance.
6. Optimizing Heat Distribution
Effective Heating Systems: Heat loss calculations help in designing the most efficient heating distribution system for the property, whether it’s radiators, underfloor heating, or other methods. By understanding how much heat is lost from the building, installers can ensure that heat is distributed evenly and efficiently.
Flow Temperature Optimization: With accurate heat loss data, installers can set the flow temperatures for the heating system, ensuring the heat pump operates at maximum efficiency and delivers the right amount of heat to each area of the home.
7. Enhancing Comfort and System Longevity
Consistent Indoor Climate: Properly sized heat pumps based on heat loss calculations maintain consistent indoor temperatures, improving comfort throughout the year, particularly in winter when heating needs are highest.
Preventing Short Cycling: Heat loss calculations prevent short cycling, which occurs when a heat pump frequently turns on and off due to being oversized. This not only improves efficiency but also extends the lifespan of the heat pump, reducing the need for repairs or replacements.
8. Supporting Environmental and Sustainability Goals
Reducing Carbon Emissions: Heat pumps are a key technology in reducing carbon emissions and transitioning to more sustainable energy sources. By ensuring the system operates efficiently through accurate heat loss calculations, homeowners can lower their carbon footprint and contribute to environmental goals.
Integrating with Renewable Energy: Many Berkshire homes are also adopting renewable energy solutions like solar panels. Accurate heat loss calculations help optimize the integration of these systems with heat pumps for even greater energy efficiency.
9. Access to Financial Incentives
£7,500 Boiler Upgrade Scheme (BUS): The Boiler Upgrade Scheme offers homeowners in Berkshire a voucher worth up to £7,500 to help cover the costs of installing a heat pump. This financial support makes it more affordable to transition to renewable heating technologies. However, to qualify for this funding, accurate heat loss calculations are often required to demonstrate that the heat pump will be correctly sized and efficient.
Affordability and Payback: The BUS voucher helps reduce upfront installation costs, making heat pumps a more viable and attractive option for homeowners. When combined with the long-term savings from lower energy bills, heat pumps become a cost-effective solution for heating homes in Berkshire.
10. Increasing Property Value and Appeal
Boosting Property Value: Energy-efficient homes with modern heating systems like heat pumps are more attractive to potential buyers. A well-installed, properly sized heat pump, especially with the help of heat loss calculations, can increase the value of a property in Berkshire.
Comfort and Energy Savings: By ensuring the heat pump performs efficiently and delivers consistent warmth, homes equipped with these systems become more comfortable and energy-efficient, appealing to both current homeowners and future buyers.
Conclusion
In Berkshire, heat loss calculations are essential for the successful installation and operation of heat pumps. They ensure the system is properly sized, energy-efficient, and capable of maintaining comfort throughout the year. These calculations also play a key role in qualifying for the £7,500 Boiler Upgrade Scheme (BUS), which provides financial assistance to homeowners looking to install heat pumps. By optimizing performance, lowering energy costs, and enhancing sustainability, accurate heat loss calculations offer long-term benefits for both homeowners and the environment.

.png)
Heat Loss Calculation Locations in Berkshire
We have the largest network of fully qualified and experienced Domestic Energy Assessors (DEA's) in the country, allowing us to easily access around 95% of the country, including off-grid towns across the north and east of England and Wales.
We have extensive coverage in:
For areas not listed, please contact our admin team who will be happy to find a solution.
Aldermaston
Ascot
Binfield
Bracknell
Bray
Burchett's Green
Caversham
Chieveley
Colnbrook
Compton
Cookham
Crowthorne
Datchet
Finchampstead
Hungerford
Hurley
Lambourn
Maidenhead
Newbury
Oakley Green
Pangbourne
Reading
Sandhurst
Sindlesham
Slough
Speen
Spencers Wood
Sulhamstead
Sunningdale
Sunninghill
Swallowfield
Thatcham
Theale
Twyford
Upper Bucklebury
Wargrave
Wickham
Windsor
Wokingham
Woodley
Wraysbury

How to Get Started with Our Heat Loss Survey
0333 577 2452 (Booking Line)
Apex Surveys
2c Kings Mews
Doncaster
DN1 1JD
Mon 09:00 - 17:00
Tue 09:00 - 17:00
Wed 09:00 - 17:00
Thu 09:00 - 17:00
Fri 09:00 - 16:00
Sat Booking Line Only
Sun Booking Line Only
You can also reach our team using the contact form below:





