New Online Tool Helps Designers with HIU Specification

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Contact us on 01372 722277 for further information or a quotation.

Evinox are excited to announce the launch of the ModuSat® Heat Interface Unit Online Selector. Available via the Evinox Energy website, this intuitive tool recommends the ideal HIU(s) for a district or communal heat network development, based on project parameters entered by the user

Screen shot of selector toolWith over 15 years of experience in the design and manufacture of interface units for heat network systems, Evinox created the Selector with M&E consultants in mind, aiming to provide a tool that is easy to use, and can help with sizing and selection whilst saving time for the specifier.

Helen Gibbons, Evinox Technical and Design Manager comments – “This unique new tool is an extension of the Evinox Heat Network Design Guide that is used by many M&E consultants in the UK. It draws on Evinox’s experience sizing HIU’s for numerous communal heating projects, and also recommendations from the Swedish District Heating Association Technical Provisions F:101, Danish Standard 439 and the CIBSE CP1 – Heat Networks: Code of Practice for the UK “

Helen continues “In addition to the heat interface unit sizing and selection functionality, our new tool provides heating and hot water technical performance information specific to the users’ project, complete with Low Temperature Hot Water (LTHW) calculations for the whole heat network, which can act as a useful guide for the design and specification process.”

A well as all the functionality detailed, the user can also save unit selections and calculations for each project and come back at any time to access or edit them or to create a new selection, making this a really useful resource for consultants.

Find out how the ModuSat® Selector can help with the specification of heat interface units and try it out by visiting the Selector here.

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HIU Keep Warm – What’s the Best Approach?

Helen examines different approaches, and how best to balance the supply of hot water with the overall efficiency of the network

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HIU Keep Warm – What’s the Best Approach?

Helen examines different approaches, and how best to balance the supply of hot water with the overall efficiency of the network

Discover how Evinox Energy can deliver the best solution for your next new build or refurbishment heat network project

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ModuSat® Is Tested to NEW BESA HIU Standard

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Contact us on 01372 722277 for further information or a quotation.

Evinox are very proud to announce that the ModuSat® XR Heat Interface Unit has been tested to the BESA (British Engineering Services Association) UK Standard for HIUs, achieving impressive results all round.

Launched in late 2016, the BESA UK Standard for Heat Interface Units was introduced to help designers and specifiers evaluate the performance of a particular HIU on their network. This new standard aims to provide HIU benchmarking, similar in many ways to the well-known SEDBUK scheme for domestic boilers.

Currently, only a handful of manufacturers have published results for the HIU test regime, with Evinox being one of the first to undertake the testing process.

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Superb Results for ModuSat® XR

With an overall VWART of just 33.4℃, impressively low domestic hot water return temperatures and the ability to deliver flexible Keep Warm operation, the BESA test results provide a clear, independently verified confirmation that the Evinox ModuSat® XR range delivers outstanding heating and hot water performance for modern heat networks.

Mike Shaw, Commercial Director at Evinox Energy commented “We believe independent testing is a vital step forward for the Communal & District heating industry, and as one of the UKs most established HIU manufacturers, we were determined to be involved from the early stages. Our latest ModuSat® XR and XR-ECOmodels have been developed very much with the new standard in mind and we’re confident that this regime from BESA will lead to more efficient heat networks being designed and delivered”.

The BESA standard is currently optional, however, Evinox believes this will be a mandatory requirement in the near future, and asks designers and specifiers to start insisting on the use of BESA tested units for their heat network projects going forward.

You can find out more and download the full report and test results by visiting our BESA test standard page. Alternatively, why not book our CIBSE accredited CPD Seminar – Understanding the BESA Test Standard for HIUs – VWARTS and all.

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ModuSat® XR Takes HIU Efficiency to Another Level

Evinox has extended its best-selling range of ModuSat® Heat Interface Units with the introduction of the new ModuSat® XR and ModuSat® XR- ECO

Evinox Case Study Building

Evinox team of CIBSE Certified Heat Network Consultants expands

Evinox has added to its CIBSE certified Technical and Design team, with Design Engineer Arturs Kokins becoming the latest to successfully complete the CIBSE Heat Networks Code of Practice course.

Discover how Evinox Energy can deliver the best solution for your next new build or refurbishment heat network project

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ModuSat® XR Takes HIU Efficiency to Another Level

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Contact us

Contact us on 01372 722277 for further information or a quotation.

Evinox has extended its best-selling range of ModuSat® Heat Interface Units with the introduction of the new ModuSat® XR and ModuSat® XR- ECO Twin Plate models.  Providing both indirect space heating and domestic hot water, ModuSat® XR units are ideal for use in modern, efficient district and communal heat networks. All units deliver fast, dynamic domestic hot water response, and the ModuSat® XR-ECO models also provide ultra-low DHW return temperatures to the primary heat network. ModuSat XR Twin Plate Heat Interface Unit

With extensive experience in the design and application of HIU’s across thousands of UK-wide installations, Evinox has made significant advances in the performance of its latest range, aiming to help improve the overall efficiency of heat networks, whilst retaining high levels of user satisfaction and comfort levels.

ModuSat® XR – even faster, more efficient domestic hot water performance

An overriding requirement for many consulting engineers involved in the design and specification of communal or district heating systems is to ensure abundant and responsive supply of domestic hot water. This goes hand-in-hand with residents expecting consistent and safe hot water at the tap.

To achieve this, our ModuSat® XR HIUs incorporate electronically controlled PICVs with fast acting sensors and actuators, combined with our control logic, which features a self-learning function to accurately match output to the required demand.  Not only does this provide high levels of user comfort and convenience, but also significantly reduces energy and water wastage.

“There is strong evidence that speed of hot water delivery is a key requirement for residents living in homes operating on communal and district heating schemes” comments Emma Alexander, Evinox Energy Marketing Manager.  “The ability to be able to deliver abundant hot water quickly, while at the same time ensuring the efficiency of the heat network is not compromised, is a key challenge for heat network designers and HIU manufacturers, so the improved performance of the new ModuSat® range is an important step forward in this area.”

Evinox ModuSat® XR-ECO; how low can you go?

It’s clear that lowering system temperatures is a critical factor in the efficient operation of UK heat networks. Reducing the network primary flow & return temperatures enables heat generation plant to operate more efficiently; lower grade, low carbon heat sources to play a more predominant role in the energy mix; and network heat losses to be dramatically reduced.

ModuSat® XR-ECO units have been designed precisely with this in mind, incorporating ultra-high efficiency domestic hot water plate heat exchangers with improved volumetrics that encourage turbulent flow and optimal heat transfer.  This enables the latest range of ModuSat® XR-ECO HIU’s to operate effectively on modern, low temperature heat networks with primary flow temperatures as low as 55°C, while still able to deliver high temperature, high flow rate hot water for typically sized new build apartments.

Furthermore, with DHW return temperatures as low as 16.4°C[1], the ModuSat® XR-ECO exceeds industry best practice guides, such as the London Heat Network Manual and CIBSE/ADE Heat Networks Code of Practice (CP1), which recommend primary return temperature of less than 25°C from domestic hot water production at design load.

These latest improvements from Evinox’s ModuSat® XR-ECO Range means, designers are given the opportunity to focus on the energy efficiency performance of HIU’s and the wider heat network, with the confidence that units will continue to deliver impressive full load hot water capacity and flow rates.

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A New Test Standard for Heat Interface Units from BESA

The ModuSat® XR has been tested under a new UK test standard, intended to help heat network designers to evaluate individual HIU performance on their network under typical UK conditions.  The new scheme, operated by the Building Engineering Services Association (BESA), will provide HIU benchmarking, similar in many ways to the SEDBUK scheme for domestic boilers.

Evinox believes independent testing is an important step for the UK HIU industry, so the latest ModuSat® XR and XR-ECO models have been developed very much with these new standards in mind. Evinox is confident that this new standard will lead to HIU systems and heat networks being designed with efficiency as much as maximum hot water capacity being the key consideration.

Find out more about the new ModuSat® XR Range of Heat Interface Units by by visiting the Product Page or Contact us on 01372 722277 / via our Contact Us Form.

[1] The Primary DHW Return Figure of 16.4°C shown relates to the ModuSat XR-ECO 70-XX operating on a network with 70°C Primary flow.
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Our HIU Delivers an Impressive Hot Water Response

Our ModuSat Heat Interface Unit takes around 15 seconds to reach 55°C from the tap opening, providing an impressive dynamic response.

Evinox Case Study Building

Evinox team of CIBSE Certified Heat Network Consultants expands

Evinox has added to its CIBSE certified Technical and Design team, with Design Engineer Arturs Kokins becoming the latest to successfully complete the CIBSE Heat Networks Code of Practice course.

Discover how Evinox Energy can deliver the best solution for your next new build or refurbishment heat network project

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Our HIU Delivers an Impressive Hot Water Response

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Contact us

Contact us on 01372 722277 for further information or a quotation.

Our ModuSat Heat Interface Unit takes around 15 seconds to reach 55°C from the tap opening, providing an impressive dynamic response.

Using advanced Proportional Integral Derivative (PID) control logic, in combination with PICV’s and a fast-acting actuator, the primary flow rate modulates to match the DHW or HTG demand and responds instantly to the changing loads.

Our Fast hot water response provides several benefits: –

  • Ensures that end user comfort is achieved by providing consistent, safe hot water at the tap.
  • The system is more efficient due to our fast control guaranteeing a low return temperature to the primary network at all times.
  • Minimises the amount of energy wasted.
  • The building owner has a hassle-free, efficient development.

FairHeat Tests

Heat interface units play a vital role in the efficiency of district and communal heating networks. As a result, Fairheat have developed a technical standard for testing the HIU performance, derived from the Swedish F:103-7e certification, but modified to better fit typical UK Heat Network operating parameters. This is a project that was funded by DECC.

Under the initial method of assessment, several tests were performed included heating tests, static domestic hot water tests, dynamic hot water tests, low flow hot water tests and keep warm facility tests. Our ModuSat HIU was included in the first phase of tests and performed well within the technical specification set out by Fairheat. Now with the improvements we have made to ensure a high speed DHW response, our ModuSat unit will be one of the top performing UK HIU’s in the Fairheat test method version 2.

Choosing the right HIU

Your choice of Heat Interface Unit (HIU) is a crucial element of the system design, installing the best solution from the outset can provide a more efficient and easy to manage scheme. With advances in technology and growing experience in system design, improved methods of controlling HIU’s and the primary network are available.

The use of PID controlled PICV’s in HIU’s means that only one valve is required for differential pressure control, flow modulation and full energy shut off. This reduces the size and weight of the unit, keeps maintenance costs to a minimum and increases functionality. In addition, Evinox Energy HIU’s are supplied prepayment ready with a room controller meaning there is no requirement for additional controls, sensors or equipment to provide remote monitoring of temperatures and flow rates or to switch the end user to a debt free Pre-Payment system.

(This will be available on ModuSat units supplied from Summer 2017)

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Future Proof Heat Interface Units

Your choice of Heat interface Unit (HIU), for dwellings connected to a communal or District heating network, is a crucial element of the system design. Installing the best solution from the outset can provide a more efficient and easy to manage scheme.

Evinox Case Study Building

Evinox team of CIBSE Certified Heat Network Consultants expands

Evinox has added to its CIBSE certified Technical and Design team, with Design Engineer Arturs Kokins becoming the latest to successfully complete the CIBSE Heat Networks Code of Practice course.

Discover how Evinox Energy can deliver the best solution for your next new build or refurbishment heat network project

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Future Proof Heat Interface Units

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Contact us

Contact us on 01372 722277 for further information or a quotation.

Your choice of Heat interface Unit (HIU), for dwellings connected to a communal or District heating network, is a crucial element of the system design. Installing the best solution from the outset can provide a more efficient and easy to manage scheme. With advances in technology and growing experience in system design, improved methods of controlling HIU’s and the primary network are available.

Our control strategy

Our ModuSat® units use an advanced Proportional Integral Derivative (PID) control logic, in combination with PICV’s and a fast acting actuator, which modulate the primary flow rate to match the DHW or HTG demand, and respond instantly to the changing loads. This ensures that end user comfort is achieved by providing consistent, safe hot water at the tap, as well as guaranteeing the low return temperature to the primary network at all times.

The use of PID controlled PICV’s in HIU’s means that only one valve is required for differential pressure control, flow modulation and full energy shut off. This reduces the size and weight of the unit, keeps maintenance costs to a minimum and increases functionality.

In addition, Evinox Energy HIU’s are supplied prepayment ready as standard, with a room controller for the end user, meaning there is no requirement for additional controls, sensors or equipment to switch the end user to a debt free Pre-Payment system. The integrated technology also enables remote monitoring for diagnostics and improving the efficiency of the system.

PICV’s alone are not the answer

The innovations in Pressure Independent Control Valve (PICV) technology have led to an increase in their use within Heat interface units. Whilst there are a number of HIU’s available that feature PICV technology, it’s vital that they are correctly controlled, and Evinox Energy recommend the use of fast acting actuators and a tailored PID control logic. Failure to size or control PICV’s correctly will result in a reduced level of comfort for the end user and a potentially less efficient primary network.

Evinox Energy are confident that the future of HIU’s lies in electronically controlled units that provide full comfort to the end user, whilst also delivering important information regarding the operation of the system, which can be monitored, adjusted or regulated remotely over the internet.

To achieve the same result using a mechanically controlled HIU, additional equipment may be required such as – an energy shut of valve, credit display device, temperature sensors and flow sensors connected to the BMS or EMS system.

By combining effective HIU control with excellent after-sales end user support and flexible metering and billing services, the building owner has a hassle-free, efficient development and residents enjoy a comfortable and relaxed place to live.

Evinox Case Study Building

Evinox team of CIBSE Certified Heat Network Consultants expands

Evinox has added to its CIBSE certified Technical and Design team, with Design Engineer Arturs Kokins becoming the latest to successfully complete the CIBSE Heat Networks Code of Practice course.

Discover how Evinox Energy can deliver the best solution for your next new build or refurbishment heat network project

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