
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 Lincolnshire?
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:
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Complete room-by-room heat loss calculations for the full property
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A detailed heat loss summary
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Required emitters with outputs at the required flow temperature
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Details of the proposed equipment (such as SCoP, maximum output, etc)
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MCS035 Model Performance Estimation
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MCS020 Sound Calculations
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Recommended equipment
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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
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Mw of Heat Loss
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Radiators
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MCS Documents
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Versions of Our in
House Calculator
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Understanding Radiator Sizing and Heat Loss Calculations in Lincolnshire
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 Lincolnshire
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 Lincolnshire
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 Lincolnshire
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.

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Importance of Heat Loss Calculations in Lincolnshire
Heat loss calculations are equally important for heat pump installations in Lincolnshire, as they ensure the system is appropriately sized and operates efficiently in the specific climate and housing stock of the region. Here are some key reasons why heat loss calculations are critical in Lincolnshire:
1. Accurate Sizing of the Heat Pump
Avoid Over- or Under-Sizing: A heat loss calculation ensures that the heat pump installed in a Lincolnshire property is neither too large nor too small. An oversized system will frequently cycle on and off, reducing efficiency, while an undersized system will struggle to heat the home during colder months. Both scenarios result in higher energy costs and lower comfort.
Optimized Efficiency: Accurate sizing based on heat loss allows the heat pump to run efficiently throughout the year, providing optimal heating and reducing energy waste.
2. Consideration of Local Climate
Cold Winters in Lincolnshire: Lincolnshire has a climate that can be cold and windy in winter, especially in rural areas. This can lead to significant heat loss from buildings, particularly older or less insulated homes. By performing heat loss calculations, the heat pump can be designed to cope with the region's specific climate conditions, ensuring it performs well during the coldest months.
Variable Coastal Climate: Some areas of Lincolnshire, particularly those near the coast, can experience high winds and damp conditions. These factors increase heat loss, which makes the need for accurate calculations even more important to maintain energy efficiency.
3. Energy Efficiency and Cost Savings
Lower Energy Bills: Heat pumps are highly efficient, but only when sized and installed correctly. Heat loss calculations help in designing a system that operates efficiently, reducing the energy required to maintain a comfortable indoor temperature and cutting down on utility bills.
Minimizing Heat Loss: By calculating how much heat a building loses through walls, windows, roofs, and floors, you can ensure that the heat pump is designed to replace just the right amount of heat. This prevents energy overuse and ensures the system doesn’t work harder than it needs to.
4. Adherence to Building Regulations
Compliance with UK Building Standards: Heat loss calculations are necessary to meet UK Building Regulations, particularly Part L, which governs energy efficiency. Accurate calculations ensure that the heating system meets or exceeds the standards required for energy-efficient home heating. This is particularly relevant in retrofitting older Lincolnshire properties, many of which may not have been designed with energy efficiency in mind.
Planning Permissions and Incentives: Local councils and planning authorities in Lincolnshire may also require proof of heat loss calculations as part of the application process for installing heat pumps, particularly in protected areas or listed buildings.
5. Tailored for Lincolnshire's Housing Stock
Diverse Property Types: Lincolnshire features a wide range of housing, from modern new builds to older cottages, farmhouses, and Victorian-era homes. These older homes often have poorer insulation and can lose heat rapidly, necessitating more detailed heat loss calculations to properly size the heat pump.
Retrofitting Older Homes: Many properties in rural Lincolnshire are older and less energy-efficient, often requiring additional insulation and improved glazing. Heat loss calculations are essential to ensure that the heat pump system is designed to account for the higher energy needs of these homes and the unique characteristics of their structure.
6. Optimizing Heat Distribution
Proper Design of Heating Systems: Heat loss calculations are critical for designing complementary systems, such as underfloor heating or radiators, which are often installed alongside heat pumps. An accurate heat loss assessment ensures that the heat distribution system is capable of delivering warmth to each room efficiently, preventing cold spots.
Ensuring Proper Flow Temperatures: Heat pumps operate best with low-flow temperatures. By calculating the heat loss, installers can set the correct flow temperatures for maximum efficiency, avoiding unnecessary strain on the system.
7. Enhanced Comfort and System Performance
Maintaining Comfortable Indoor Temperatures: Heat loss calculations ensure that the heat pump system can maintain comfortable indoor temperatures even in the coldest weather conditions typical of Lincolnshire winters. This prevents scenarios where the system underperforms due to being inadequately sized for the building’s heat demand.
Avoiding Excessive Cycling: Over-sizing a heat pump can lead to excessive cycling (turning on and off frequently), which reduces comfort and efficiency while wearing out the components prematurely. Heat loss calculations help in avoiding this issue.
8. Supporting the Transition to Renewable Energy
Contribution to Lincolnshire’s Sustainability Goals: Lincolnshire, like the rest of the UK, is moving towards greater use of renewable energy technologies to reduce carbon emissions. Heat pumps are a key part of this transition, and ensuring their efficiency through heat loss calculations supports broader environmental goals.
Maximizing Renewable Energy Use: Heat pumps are often paired with renewable energy sources like solar panels. Accurate heat loss calculations ensure the system works in tandem with renewable energy sources, minimizing reliance on grid electricity and optimizing the use of green energy.
9. Ensuring Long-Term Cost-Effectiveness
Maximizing the Lifespan of the System: Correct sizing based on heat loss extends the lifespan of the heat pump, as the system doesn’t have to work harder than necessary to meet the property’s heating needs. This reduces wear and tear, cutting down on maintenance costs over time.
Securing Financial Incentives: Heat loss calculations are often a requirement for government grants and schemes like the Boiler Upgrade Scheme (BUS) in the UK, which helps cover the cost of installing heat pumps. By ensuring the heat pump is properly sized, homeowners in Lincolnshire can access these financial incentives more easily.
10. Adapting to Future Proofing
Improving Property Resilience: With changing energy markets and growing pressure to reduce carbon footprints, homes that are properly heated with efficient systems like heat pumps will be better prepared for the future. By conducting heat loss calculations, homeowners in Lincolnshire can ensure their property remains energy efficient and cost-effective in the long run.
Adaptable for Smart Technology: Accurate calculations provide a strong foundation for integrating smart technology into heat pump systems, allowing homeowners to optimize energy usage through intelligent controls.
Conclusion
In Lincolnshire, where the climate, property types, and regional sustainability goals all present unique challenges and opportunities, heat loss calculations are crucial for successful heat pump installations. They ensure efficient operation, compliance with regulations, enhanced comfort, and reduced costs, while also supporting the shift toward renewable energy. Whether for new builds or retrofitting older homes, accurate heat loss assessments form the backbone of an effective heating system design that benefits both the homeowner and the environment.

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Heat Loss Calculation Locations in Lincolnshire
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.
Alford
Billingborough
Billinghay
Boston
Bourne
Caistor
Chapel St. Leonards
Corringham
Cranwell
Crowland
Crowle
Donington on Bain
Epworth
Gainsborough
Goulceby
Grantham
Hemswell
Holbeach
Horncastle
Ingoldmells
Kirton in Lindsey
Lincoln
Long Sutton
Louth
Mablethorpe
Market Deeping
Market Rasen
Metheringham
Moulton
Saxilby
Skegness
Sleaford
Spalding
Spilsby
Stamford
Stickney
Stragglethorpe
Sutton on Sea
Waddington
Weston
Woodhall Spa

How to Get Started with Our Heat Loss Survey
You can also reach our team using the contact form below:





