Heat Loss Calculations

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?

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.

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
MCS Compliance certificate
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

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Mw of Heat Loss
Calculated

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Radiators
Designed

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MCS Documents
Produced

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Versions of Our in
House Calculator

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Understanding Radiator Sizing and Heat Loss Calculations

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.

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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.

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Full Design and Specifications

We fully design all air source heat pump surveys form the heat loss survey performed by us using our own in house developed software.

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Radiator Sizes and Locations

You will receive a full radiator schedule stating which radiators need to be replaced what that radiators you need to replace them with.

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Air Source Heat Pump sizing

We will plan out the correct heat pump sizing for the property, this means the system will not be under or over sized for the property in question.

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Air Source Heat Pump Floor Plans

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

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.

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Increase Sale Conversion Rates

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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Heat Loss Calculation Locations

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.