VENTILATION & HEAT RECOVERY GUIDE Hoval Ltd


Address: Northgate, Newark-on-Trent, NG24 1JN Tel: 01636 672711 Email: info.uk@hoval.com Web: hoval.co.uk


Provide a short introduction to your company? Founded in 1945 in Liechtenstein. First came to the UK in 1958 and in 1961 purchased Farrar Boiler Works in Newark-on-Trent, where our UK offi ce is still based.


Product details Hoval off ers a range of units in the Indoor Climate range, designed for ventilation, cooling and heating of high spaces. ¡ TopVent® – Supply air and recirculation units. ¡ RoofVent® - Supply and extract and heat recovery air handling units. Our other products include: ¡ UltraGas® 2 and TopGas – Highly effi cient gas condensing boilers. ¡ Belaria® fi t – Modulating air/water heat pump for outdoor installation. ¡ Domestic hot water solutions. ¡ Other solutions include oil, biomass and combined heat and power.


Other products available from your company ¡ TopTronic® controls: a standalone system for both our boilers and indoor climate ranges. ¡ Comprehensive range of services, including commissioning, service and maintenance. ¡ Tailored service plan options, for a one-off


Case Study H


oval was approached by the mechanical & electrical contractor working with Siemens Mobility to supply heating and


ventilation solutions for installation at the fi rm’s train building facility at Goole in the East Riding of Yorkshire.


Construction of the 67-acre facility began in June 2020. The fi rst trains to be assembled there will be the new Piccadilly line trains for Transport for London. The facility, which sits between the M62 motorway and the River Ouse, is dominated by three large separate buildings for the assembly, single car testing and commissioning of the trains, with each building requiring a heating and ventilation solution. An initial feasibility study in March 2022


examined various options, including the installation of a mixture of RoofVent® and TopVent® units. Following an update from the contractor in June 2022, which included detailed layouts of the three buildings and heat loss calculations, further discussions took place, establishing heat loads and the buildings’ desired outside design and indoor temperatures. Siemens Mobility’s desire for a gas-free site led to Hoval recommending its TopVent® TP, a


decentralised recirculation unit designed to heat and cool high spaces. Equipped with an air/ air heat pump system (which generates both heated and chilled air for year-round operation), the units utilise energy in the ambient air for environmentally-friendly heating and cooling. The heat pump can be located up to 50m from the TopVent® unit, whose temperatures are controlled by the TopTronic® C system. Twenty-two TopVent® TP units will be used


for this project, providing high effi ciency and sustainability. David Harris, Siemens Mobility UKI Senior


Project Manager at Goole, said: “Our new facility has been built with sustainability at its heart, fi tting with Siemens’ overall global target to achieve net zero by 2030. Air source heat pumps are just one of the ways we are ensuring our site can be as sustainable as possible.” Hoval worked with Halifax-based contractor AF Connell on this project.


service, or a three, fi ve of ten-year plan. ¡ Fast access to spare parts with our spares department. ¡ Technical support from our technical department.


Explain the energy effi ciency benefi ts of your range? ¡ Duct free systems mean lower energy losses. ¡ Use of highly effi cient heat recovery. ¡ At the heart of Hoval’s indoor climate systems is the patented Air-Injector for air supply and distribution. The air injectors reduce temperature stratifi cation within the building. ¡ The fast discharge velocity of the air injector leads to high induction – the supply air quickly mixes with room air. ¡ Hoval’s indoor climate systems can also be integrated with renewable energy sources, such as heat pumps, to further enhance energy effi ciency and reduce reliance on fossil fuels.


Describe product features that simplify installation and maintenance? ¡ Ready to connect solutions. ¡ Hoval indoor climate systems can be integrated into almost any environment, normally without needing structural changes. ¡ The units are designed to provide fl exibility, to allow systems to be easily adapted and added to as the


building requirements change. ¡ Easy to maintain without interrupting operations.


How does your company/products align with Net Zero goals? ¡ Hoval’s corporate development strategy is deeply rooted in environmental responsibility. We are committed to protecting the climate, conserving raw materials, and minimising our environmental impact. This commitment drives the continuous innovation of our products to support the transition to net zero carbon. ¡ Energy effi ciency – Our products are designed and engineered to maximise energy savings, therefore lowering energy consumption. ¡ Alternative energy sources – We off er a range of environmentally conscious solutions, including the Belaria® fi t air/water heat pump, and the UltraGas® 2 condensing boiler which is certifi ed to run on future fuels including biomethane and 20% hydrogen blend. Additionally, our indoor climate range can be integrated into systems with renewable energy sources.


How does your range comply with the latest ventilation standards/regulations? ¡ Our range complies with the latest ventilation standards and regulations as set out by the Ecodesign Directive for ventilation units in the EU. ¡ The requirements in the Ecodesign Directive primarily relate to: ¡ Fan power consumption (SFP) ¡ Output of the used heat recovery ¡ The minimum requirements of the power consumption’s threshold values for heat recovery are clearly defi ned and laid down as: ¡ Plate heat exchangers – at least 73% ¡ Liquid coupled batteries – 68%


Describe what sets your company/range apart from competitors? ¡ Hoval has an unwavering commitment to innovation, quality, and customer satisfaction. With decades of experience in the industry, we have established ourselves as leaders in providing sustainable heating and indoor climate solutions. Our dedication to research and development ensures that our products are at the forefront of technology, off ering unparalleled energy effi ciency and reliability. Moreover, Hoval’s comprehensive range of services, including commissioning, servicing, maintenance and spare parts allows us to provide end-to-end support for our customers. ¡ Our indoor climate systems ranges have been designed with the industrial and logistic sectors in mind. We off er a fl exible, ductless decentralised design where we can have diff erent temperatures in separate zones. Linking our units with our air source het pumps off ers clients a carbon zero alternative to heat and cool their workspaces.


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