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RetroFIT+ for enhanced comfort and energy efficiency

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Discover the goldmine: HVAC system upgrades for building renovation

HVAC system upgrades with our RetroFIT+ solutions

Choose your impact

Every building faces challenges, whether big or small. Tackling them effectively can lead to numerous benefits. By making simple adjustments, you can achieve impressive results, and with a little extra effort, you can achieve much more. Adapting the hydronic network for heating and cooling provides substantial benefits but is not always necessary. At Belimo, we believe in taking small steps to achieve significant gains - "Small devices, big impact".

We understand the sweet spot - maximising energy savings, boosting system efficiency, and elevating comfort levels. Whether you're looking for a simple improvement, a significant overhaul, or something in between, we have the technology and expertise to help.

  • RetroFIT+
  • Success stories
  • RetroFIT+ Partners
RetroFIT+

Six reasons why you should retrofit your building

Reason 1Energy saving

Retrofitting HVAC systems can significantly improve energy efficiency, helping to reduce energy consumption and costs.

Reason 2Improved comfort

Retrofitting can enhance indoor air quality and thermal comfort, creating a healthier and more enjoyable environment for occupants.

Reason 3Increased property value

Energy-efficient buildings are more attractive to buyers and renters, leading to increased property value and higher occupancy rates.

Reason 4Resource conservation

Retrofitting extends the lifespan of existing buildings, reducing the need for new construction and preserving natural resources.

Reason 5Reduced emissions

Buildings account for approximately 40% of global CO2 emissions. Retrofitting helps reduce operational emissions and contributes to climate change mitigation efforts.

Reason 6Incentives and legislative compliance

Government incentives are available for commercial retrofit projects, while in certain regions, adherence to energy requirements is mandatory for buildings.

Evaluate the energy-saving potential of your building's hydronic system with just a few clicks. Download a comprehensive assessment report for detailed insights.

HVAC checklist screenshot

The accommodation of a building can change over time. Consequently, it is relevant to adapt the technical equipment to the changed accommodation. Energy-efficient building renovations can be implemented economically by adjusting the existing system, replacing outdated HVAC components, or by adding new, up-to-date technological advancements. It is not always necessary to renew or replace entire systems to increase energy efficiency and minimise operating costs.

Use our checklist to determine whether your building conforms to today's energy requirements.

Uncovering energy demands in diverse buildings with RetroFIT+

Optimising energy usage benefits all buildings, but each type has unique load profiles and requirements. Tailored approaches ensure efficiency, air quality, and comfort for occupants. RetroFIT+ is a major component of any building’s lifecycle and can make an enormous difference in the facility's efficiency. Our team has decades of experience in the HVAC industry, and our products are proven to deliver results. Let's explore how RetroFIT+ can revolutionise energy usage in different types of buildings:

  • Schools

    Seasonally in operation

    Given that school occupancy is directly related to instruction and holiday times, the building's energy consumption should align with its load profile. With an average occupancy of 7 hours/day when school is in session, these buildings could reduce energy consumption and the correlating costs by 30% by limiting consumption between 6pm–8am when the building is not being used at full capacity. By coordinating energy consumption with occupancy levels in terms of timing and specific area accommodation (classrooms, gym, library, etc.), monitored and controlled air quality can help improve student comfort and concentration. Further, more efficient energy consumption can positively impact publicly funded institutions and their tax obligations. 

    The proportionate energy consumption of school buildings depends on the building's age, size, geographical location, and type of equipment used. In school buildings, heating, ventilation, air conditioning systems and domestic hot water (DHW) account for approximately 80% of energy consumption.

    Chart of the Energy Consumption in School Buildings

    The RetroFIT+ solutions you need: how Belimo supports you

    With Belimo devices, you can improve energy efficiency and comfort, while improving indoor air quality:
     

  • Hospitals

    Around-the-clock energy for around-the-clock care

    In hospitals, energy supply is required 24/7. Moreover, significant flexibility in heating, cooling, and ventilation and dynamic balancing capabilities are needed to supply the appropriate amount of heating or cooling for each building area.

    Different types of buildings consume different degrees of energy based on their function. Air conditioning, heating and domestic hot water (DHW) account for approximately 73% of energy consumption in hospitals.

    Chart of the Energy Consumption in Hospital Buildings

    The RetroFIT+ solutions you need: how Belimo supports you

    Hospitals and other healthcare facilities have a 24/7 role. The HVAC system's availability and reliability are key to promoting comfort and healthy indoor air regarding infection control and safety. With products from Belimo, you can ensure the availability of thermal comfort, adequate ventilation, and energy efficiency while allowing for more flexible space planning and easy troubleshooting:
     

  • Office buildings

    Heating and cooling that clocks out when your colleagues do

    Given that office buildings are occupied only during business hours, their energy consumption should be optimised with respect to operating hours. With an average occupancy of 9.3 hours/day, energy consumption and associated costs in these buildings can be reduced by 30% by limiting consumption between 8pm–6am, when the building is not fully occupied. This means that no heating or cooling power needs to be provided for an empty building, thus reducing both energy costs and emissions. Dynamic balancing ensures comfort even with changing occupancy.

    In office buildings, air conditioning, heating, and domestic hot water account for approximately 56% of energy consumption. 

    Chart of the Energy Consumption in Office Buildings

    The RetroFIT+ solutions you need: how Belimo supports you

    The average occupancy is 9.3 hours/day. By dynamically adjusting energy consumption to suit the load profile and occupancy rates, you can save over 30% energy between 8pm–6am when the building is experiencing low to no use. With Belimo devices, you can improve energy efficiency, comfort, and sustainability while allowing more flexible space planning, a sure way to make it easier to find tenants to rent office space:

  • Hotels

    Comfort comes first

    Like offices and schools, hotels are not occupied at full capacity throughout the entire day. However, they are generally at their highest occupancy in the later hours of the day and at night when guests sleep. Providing guests with a comfortable stay is a top priority. In this context, ensuring good air quality, a suitable noise level and hygienic ambient conditions.

    In hotels, air conditioning, heating, and warm water account for approximately 58% of energy consumption.

    Chart of the Energy consumption in Hotels

    The RetroFIT+ solutions you need: how Belimo supports you

    30% energy saved by reducing consumption when the building is unoccupied. 

    The average occupancy is 9.3 hours/day. By dynamically adjusting energy consumption to suit the load profile and occupancy rates, you can save over 30% energy between 8pm–6am when the building is experiencing low to no use. With Belimo devices, you can enhance energy efficiency and comfort while also improving building sustainability:

  • Mixed-use buildings

    System agility to suit multiple tenants

    Shopping centres, sports venues, airports, and cultural centres—while their functions are different, they share some things in common: fluctuating occupant traffic, a need to maintain high comfort, and dynamic balancing to ensure high availability of cooling and heating energy. The existing system must be flexible, given that the requirements are subject to constant change to meet the demands of changes in space planning. Moreover, as these buildings often house multiple tenants, providing each space with certified energy billing within the individual cost centres must be considered.

    The proportionate energy consumption of mixed-use buildings is very distinct. The energy consumption patterns depend on many factors, such as the building's purpose, age, size, geographical location, and type of equipment used. In mixed-use buildings, HVAC systems account for the largest proportion of energy consumption.

     

    Chart of the Energy consumption in Mixed-use Buildings

    The RetroFIT+ solutions you need: how Belimo supports you

    While mixed-use buildings such as shopping centres and sports venues have different purposes and functions, both building types share fluctuating occupancy levels and the high demand and availability of heating and cooling energy. With Belimo devices, you can dynamically balance the heating and cooling loads, thus optimising energy consumption and ventilation to align with occupancy levels.
     

Belimo RetroFIT+ App

The Belimo RetroFIT+ App next to an HVAC actuator

The Belimo RetroFIT+ App offers you a quick and easy way to find the perfect replacement for your obsolete or defective actuators, valves, and sensors from Belimo and a number of other equipment sources.

Whether for ventilation or water applications, modernisation, or replacement of your system, our app will quickly guide you to the ideal Belimo product that best meets your requirements, offering maximum quality and performance.

The RetroFIT+ App makes it easy to create and plan Belimo retrofit projects.

How to find a replacement with the Belimo RetroFIT+ App

Use the scan function

Submit a request to support

Search for a product name

Search for parameters

Search for measurements

FAQ

  • What does HVAC retrofit mean?

    Retrofitting is the process of improving or upgrading existing systems. In the context of buildings, retrofitting typically involves upgrading or redesigning certain elements, such as HVAC systems, lighting, or insulation, to optimise energy efficiency, improve performance, and extend the life of the building. Specifically, a HVAC retrofit can include measures to reduce energy consumption and improve room comfort, such as replacing outdated devices, installing new controls or sensors, and improving insulation.

  • Why is retrofitting buildings important?

    Retrofitting buildings is important because it allows for the upgrade and improvement of existing HVAC (heating, ventilation, and air conditioning) systems. This can result in higher energy efficiency, improved comfort, and reduced environmental impact. Retrofits can also help meet new regulatory requirements and improve the overall value of the building while contributing to a greener future. 

  • What is RetroFIT+?

    The ‘+’ symbolises the added value that Belimo delivers in retrofitting projects. Belimo offers a large number of products that are perfectly suited for renovation projects, including damper actuators, control valves, sensors and meters. If an adapter or linkage is required, our extensive range of retrofit accessories ensures a straightforward on-site installation process. If our standard offerings do not include the ideal replacement product, we also provide the option for customised products and linkages. However, our support and application consulting extends beyond just the product aspect. Dedicated Belimo's sales managers and application specialists help you determine the optimal approach for your renovation project.

  • How much does it cost to retrofit an HVAC system?

    The cost of retrofitting an HVAC system can vary depending on various factors such as the size of the building, the complexity of the retrofit, the specific components being upgraded, and the local market conditions. To determine an accurate cost estimate, it is necessary to assess each project individually. Belimo offers a wide range of options for retrofitting HVAC systems. No matter whether you are seeking minor improvements, extensive conversion transformations, or something in between, we have the technology and expertise to support you. We will be happy to provide you with a corresponding cost estimate.

Success stories

Belimo Energy Valve™ helps New York City Property Manager cut carbon emissions by 40%

In response to a regulatory mandate starting in 2024 in New York City that focused on improving energy efficiency and reducing CO2 emissions for large buildings, a leading property management company upgraded key buildings with the Belimo Energy Valve™, a pioneering, IoT-enabled device designed to optimise energy consumption in HVAC systems and reliably maintain delta T.

The upgrade dramatically cut energy consumption and costs – saving over USD 1 million on electricity costs in 2023 alone. In addition, Paramount received USD 2.1 million in financial incentives from utility companies for its efforts, aligned its buildings with CO2 reduction goals for 2030, and secured important sustainability certifications. This marks a significant stride towards the 2050 CO2 neutrality target, demonstrating a strong commitment to sustainability and efficiency.

Watch the video to find out more about the CO2 reductions and cost savings.

Efficiency made easy: a Belimo Energy Valve™ story

Retrofitting of the historic Hotel Admiral Bergen (Norway) was already in full swing when Geir Hovden of DNB Commercial Real Estate learned about the Belimo Energy Valve™ through a particular episode of the Practical PropTech podcast. That episode examined closely how cutting-edge technology, such as the Belimo Energy Valve™, is transforming the way we manage building operations and save energy. Despite the project already being underway, the decision was pivoted to equip the hotel's hydronic system with Energy Valves. Their decision yielded impressive results, including enhanced operational efficiency, significant cost savings, and a substantial contribution to their sustainability goals.

Watch the video to discover how our innovation makes installations easier and provides valuable insights for better, smarter building management. 
 

See what our customers are saying

For property managers and building owners

For project and facility managers

RetroFIT+ saves Providence College millions: No new chiller required.

Founded in 1917, Providence College comprises 40 campus buildings. With ongoing expansion planned, the chilled water supply was nearing its capacity. How can we meet this increasing demand without installing a new chiller and save on cooling and pumping costs? Retrofitting East Campus buildings with the Belimo Energy Valve™ offered the ideal solution, and is helping the college meet its environmental goals.

Retrofitting buildings for energy-efficiency and sustainability

After a reassessment and recommissioning, Brookfield Place saves 8.9 million litres of water per day in the primary heating system alone.
 

Click on the map to find a reference building

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RetroFIT+ Partners
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True partnership

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RetroFIT+ is a strategic initiative at Belimo to contribute to the decarbonisation of the global building stock. As part of this initiative, we provide application knowledge and tools to help investors, building owners, operators, and sustainability managers understand the potential of HVAC field devices and building automation to reduce energy consumption.

Working together, we achieve your sustainability goals, lower energy consumption, and open up new business opportunities for you as a RetroFIT+ Partner.

Become a Partner

Become part of Belimo's RetroFIT+ Partner network and actively shape the future of HVAC infrastructure. Together, we inform building managers of the potential for optimisation and develop tailor-made solutions. Contact us for an initial partnership discussion.

Your benefits as a RetroFIT+ Partner

As a RetroFIT+ partner, you benefit from exclusive tools, training programs, valuable exchange of practical experience within the partner network and comprehensive support for optimising energy consumption at your property, particularly concerning its HVAC systems.

RetroFIT+ Assessment Tool

The RetroFIT+ Assessment Tool enables rapid detection and evaluation of building optimisation potential based on the ISO 52120 standard. It highlights specific measures and their effects on energy consumption and the CO2 footprint for investors, building owners, and operators. In addition, the collected measures are evaluated in terms of investment and presented as an ROI calculation.

RetroFIT+ Diagnostic Kit

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Whether it is incorrect settings in the management system, poorly designed systems, or poor room comfort, sometimes accurate data is needed to move a project forward. With the RetroFIT+ Diagnostic Kit, you obtain this data within the shortest time possible.

The Kit consists of a set of sensors, which can be placed at strategic locations without affecting the existing system. The collected data is loaded automatically into an online monitoring tool, where it is visualised and a diagnosis can be made.

Our RetroFIT+ Partners

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Lufttechnik AG, Schweiz


Lufttechnik AG specialises in the planning, manufacturing, designing and servicing building and ventilation systems and installations. The company offers comprehensive services, from installing air conditioning, ventilation, and heat recovery systems to unique industry-specific solutions.

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GATEC AG, Switzerland


GATEC AG is a company that specialises in building automation. The company's primary aim is to provide solutions for the automation, visualisation and control of building technology systems. This includes among other services the optimisation of heating, ventilation and air conditioning systems (HVAC) and the improvement of energy efficiency and comfort in buildings. 

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Hustech Installations AG, Switzerland


Hustech Installations AG provides building automation and energy management solutions to optimise energy consumption and enhance comfort. Their network functions include heating, ventilation, air conditioning, lighting, and security for optimised control of residential and commercial buildings.

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Demont Engineering GmbH, Switzerland


Demont Engineering GmbH specialises in building and industry automation. The company provides customised control and automation solutions for new construction and retrofit projects. Their services include, among others, building automation, process management systems, and energy management. 

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EliteBuildingArchiTec Swiss AG, Switzerland


EliteBuildingArchiTec Swiss AG is a proven expert in the provision of engineering services in the areas of planning, construction management, consultation and development in the area of building technology and building automation. 

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Aicher, De Martin, Zweng AG, Switzerland

 

ADZ is part of the BKW Group and ranks among the leading building technology engineering companies in Switzerland that specialise in the planning and implementation of energy-efficient and sustainable construction projects. With its highly qualified specialists, the company offers comprehensive services in the areas of electrical engineering, light planning, renewable energies, heating, ventilation, and cooling, as well as building technology and automation.

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ahochn AG, Switzerland

 

ahochn AG is part of the BKW Group and ranks among the leading building technology engineering companies in Switzerland that specialise in the planning and implementation of energy-efficient and sustainable construction projects. With its highly qualified specialists, the company offers comprehensive services in the areas of electrical engineering, light planning, renewable energies, heating, ventilation, and cooling, as well as building technology and automation.

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Balzer Ingenieure AG, Switzerland

 

Balzer Ingenieure AG is part of the BKW Group and ranks among the leading building technology engineering companies in Switzerland that specialise in the planning and implementation of energy-efficient and sustainable construction projects. With its highly qualified specialists, the company offers comprehensive services in the areas of electrical engineering, light planning, renewable energies, heating, ventilation, and cooling, as well as building technology and automation.

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Enerpeak AG, Switzerland

 

Enerpeak AG is part of the BKW Group and ranks among the leading building technology engineering companies in Switzerland that specialise in the planning and implementation of energy-efficient and sustainable construction projects. With its highly qualified specialists, the company offers comprehensive services in the areas of electrical engineering, light planning, renewable energies, heating, ventilation, and cooling, as well as building technology and automation.

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Marcel Rieben Ingenieure AG, Switzerland

 

MRI is part of the BKW Group and ranks among the leading building technology engineering companies in Switzerland that specialise in the planning and implementation of energy-efficient and sustainable construction projects. With its highly qualified specialists, the company offers comprehensive services in the areas of electrical engineering, light planning, renewable energies, heating, ventilation, and cooling, as well as building technology and automation.

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PKE Gebäudetechnik GmbH, Austria

 

PKE Gebäudetechnik GmbH is a holistic, product-neutral system installer and operator of complex building service installations. The portfolio comprises high-voltage and low-voltage systems, switchgear construction, HVAC, photovoltaics, building automation, energy and sustainability management, and smart buildings. Professional follow-up support is seen as part of the company's core business, with a primary focus on quality and safety.

As a subsidiary of the leading, internationally active PKE Group, we have a deep understanding of regional requirements that is backed up by a global network of expertise with many years of project experience. Thanks to these success factors, the PKE Group has successfully established itself as a global player. Today, the Group has more than 2.000 qualified and committed employees worldwide and is growing continuously every year.

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Baumgartner MSR AG, Switzerland

 

Baumgartner MSR AG is a company that specialises in Measuring, Control and Regulating Technology (MCR), as well as building automation. Its main objective is to provide efficient and reliable solutions for the control and monitoring of heating, ventilation, air conditioning, and electrical systems (HVAC). The services offered include the planning, execution, commissioning, and monitoring of MCR systems.

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MAGerber GmbH, Switzerland

 

MAGerber GmbH is a company that specialises in building automation. Its main objective is to provide efficient and modern solutions for the control and monitoring of heating, ventilation, and air conditioning systems. It takes over the planning, installation, and maintenance of automation systems in order to optimise the operation of buildings and to conserve resources.

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Bühler + Scherler AG, Switzerland

 

Bühler + Scherler AG is a global company specialising in electrical engineering, building automation, and project management for medium-sized and large companies. Its objective is to use innovative solutions to conserve its customers' energy and financial resources while at the same time ensuring optimum production and working conditions. Their building automation solution includes the control of heating, ventilation, air-conditioning, lighting, shading, door management, security technology, and fire protection.

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Walter Bösch GmbH & Co KG, Austria

 

Walter Bösch GmbH & Co KG strives to bring well-being to its customers' buildings – this is achieved by means of customised heating, air-conditioning, and ventilation solutions. The claim 'Carefree for generations' is intended to emphasise the aspiration and maxim of sustainable action. The vision is consolidated through the cooperation partner's clear environmental policy of actively shaping the energy transition and establishing building and energy efficiency as the top priority. Walter Bösch GmbH & Co KG is interested in using the possibilities offered by Belimo RetroFlT+ in its consulting services for building owners, building operators, and other stakeholders while thereby supporting its customers in optimising their HVAC systems, with the aim of enabling them to achieve better energy efficiency in their systems or parts thereof.

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PRO-PLAN GmbH, Austria

 

PRO-PLAN GmbH has been providing customised planning solutions for optimum building technology in the areas of heating, cooling, ventilation, and sanitation for over three decades. In this way, it enables its customers to meet climate challenges in a way that conserves resources and energy as much as possible.

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NOVIAS GmbH, Austria

 

NOVIAS GmbH is your partner in the holistic planning process.
We are breaking new ground in the specialised planning of building automation (BA) and integration planning. We provide integrated planning of technical building services for commercial and industrial properties across all trades.
We support clients from the feasibility study through the service phases of design and implementation planning to construction management and acceptance.

HVAC hydronics – The goldmine in energy renovation projects

HVAC hydronic system

The smart control of heating, cooling, and ventilation loads has a big impact on building energy efficiency. A key aspect here is the hot water and chilled water circuit, i.e. the hydronics of a building.

Generation
- No energy loss with zero load reduces operating costs.
- Planning reliability as a first step towards better energy efficiency.

Diverting
- Pressure fluctuations in distribution lead to lower power output.
- Making the energy flow visible.

Zone
- Demand-driven zone control.

Learn more about how we can support you:

Contact us today to optimise your HVAC system with RetroFIT+

At Belimo, we are here to help you find the best solution for your needs, so you can reduce your energy costs and CO2 emissions for a more sustainable future.

We make the world more efficient. Be part of it!

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