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Technologically superior indoor climate control solutions from the Alps.
conservation of energy – protection of the environment
Letting nature be the guide ensures
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Weather is inspiration. Particularly so when it is as changeable as it is here in the Alps. It influences life in the mountains more than any other factor. That’s why we have not only learnt to forecast the weather but we also know how to use technology to mould the qualities of the weather to our everyday life: heat, cold, humidity and wind – judiciously measured and correctly applied – give us a comfortable indoor climate.
Weather is motivation. Extreme conditions in the mountains inspire our employees to their best performance. This is seen in our outstanding indoor climate control solutions. Our approach also lends clear contours to entirely different, simple and central values: we are friendly and family-run, responsible, solution-oriented, sophisticated, expert, enthusiastic and technology-driven. This shapes a culture in which the men and women at Hoval enjoy participating day by day.
Conservation of energy – protection of the environment. Indoor climate and world climate are in an ever-changing relationship. We design our heating and ventilation systems fully aware of our responsibilities to the climate. We protect our environment with the highest possible efficiencies – for the benefit of all of us.
Take us at our word!
Energy efficiency and alternative energy sources are at the centre of our corporate development – helping to save you money and sparing raw materials. We offer individual solutions tailored to our customer’s requirements. It goes without saying that this also means providing systems that are easy to commission and operate.
We attach great importance to the quality of our products, consultation and services. As suppliers of complete solutions, we often even exceed our customer’s expectations.
The training and skills of the Hoval staff are the foundation of your satisfaction. Dedicated engineers at Hoval guarantee mature, sophisticated solutions – without compromises.
We are open to unusual ideas and innovations. This, in turn, benefits your project.
As a family-managed company, we are honest and sincere in our dealings with our employees and with our customers and suppliers.
Hoval saves resources and improves the climate. Inside and outside.
conservation of energy – protection of the environment
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1 2 53 4
Yesterday and today. System development at Hoval.
1 Central heating stove (1944/45)Early system technology: in the “Model H”, cooking and heating energy can be controlled separately. 2 Gustav Ospelt (1966)Heating technology pioneer and father of the Hoval brand.
5 Hovaltherm (1953)This central heating and hot water boiler was the first Hoval product to go into series production.
3 Sketch of a boiler with a positive pressure burner (1957)This hand drawing shows a ground-breaking idea: the separate combustion of oil and solid fuels. The result was a boiler with a particularly high degree of efficiency.4 Hoval workshop (around 1947) The equipment in the early Hoval production halls was simple: drills, shears and rolling machines.
It all began with a multi-functional stove that could be used for both cooking and heating. For the first time, Hoval made its vision a reality: greater energy efficiency in a single combined system. Inspired by this simple yet ingenious idea, Hoval built increasingly sophisticated heaters for diverse energy sources. Systems for ventilation and cooling soon extended the product range. Today, this broad expertise has given rise to intelligent system solutions for a pleasant indoor climate.
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8 Product designThe body of the UltraGas® condensing gas boiler presents itself in a brilliant coat of typical Hoval Red.9 Intelligent system technology Combined to form an energy efficient indoor climate system: the TopVent® (recirculation units and air curtains) plus RoofVent® product family unified with a double UltraGas® unit and a Thermalia® heat pump.
6 Computational fluid dynamics (CFD) Professional support for development through the simulation of speed, pressure and temperature in the air/gas mixture of a Hoval UltraGas® burner.7 Modern production techniquesThe aluFer® heat exchanger being welded into the boiler body of a Hoval UltraGas® unit by a precision robot.
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Heating technology.Diversity that inspires.
A consistent and complete product range.
Not all energy sources are available everywhere. A resource that is the best and most cost-efficient variant in one area may only be second choice somewhere else. Regardless of the desired energy source and the required heating power – Hoval has a fitting solution.
Drawing on its activities in research, development, production and sales, Hoval advises its customers from a neutral point of view and independent of the energy carrier. The Hoval spectrum of heat energy production methods covers all areas: solar energy, ambient heat, wood, gas and oil.
Recommendations and solutions are specifically tailored to each individual situation. Customer needs and wishes are at the core of our efforts, including with regard to operating convenience.
Making comfort easy.
Hoval system technology simplifies the intelligent combination of different heating systems. This is important to ensure the perfect interplay of all system components, and thus to keep down energy consumption and operating costs. Perfectly matched components and units guarantee reliable operation and the sparing use of natural resources.
The Hoval system technology also provides simple mechanisms for the precise, comfortable and easy control of the entire system. Wherever it is needed – in single-person apartments or high-rises – comfortable warmth is at your fingertips.
Soaking up the sun in the fresh Alpine air, quenching your thirst with mountain spring water or breathing in the clean, crisp air on a wooded path. We are inspired by the infinite possibilities for drawing strength from the Alps. This has motivated us to implement a variety of energy sources in our system solutions. Making them usable in a simple and environmentally-friendly way is our aim.
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Climate technology. The wind systems of the Alps.
Indoor climate.
For many years, Hoval has been implementing its climate solutions on the basis of distributed systems. They consist of combinations of multiple – and often different – indoor climate units that are separately regulated but jointly controlled. This allows Hoval to respond flexibly to different requirements and to offer complete heating, cooling and ventilation solutions.
Heat recovery.
Warm air is loaded with energy – energy that the well-tried plate heat exchangers from Hoval transport directly from the warm, used air flowing out of buildings to the cool, clean supply air. Rotary heat exchangers are even capable of recovering the humidity contained in the air to prevent the interior climate from drying out.
Residential climate.
The controlled ventilation of living areas is an important feature of modern buildings. It not only introduces fresh air into the home or office, but also helps save energy costs and protect the environment over the long term.
Wind and weather are often mentioned in the same breath, and that is no coincidence. The two phenomena are closely linked. This piqued our curiosity, and the different wind systems of the Alps gave us many new ideas – ideas that flow into Hoval climate technology, which today covers virtually all climate control needs. As knowledgeable as meteorologists, we study the weather and transport the pleasant mountain climate to wherever it is needed.
Markus TelianHead of Research & Development:
“Technology is our passion! Hoval innovations are based on knowledge and experience, but also arise from our attention to detail, our consistency and stamina, and often from our courage to do the unexpected.”
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Technology-driven as we are, we meet new challenges with technical sophistication. We look at heat, cold, wind and moisture up close. New insights lead to innovations that flow directly into our new products. Below are three powerful examples of the potent innovative force of Hoval.
Innovation. The result of a passionate relationship.
aluFer®. A bond for life.
The aluFer® heat exchanger is a patented Hoval innovation. Its secret is an aluminium profile section with a microstructure that is embedded in a stainless steel tube. The unique surface structure creates optimised conditions for a highly efficient heat transfer. This makes it possible to develop condensing units powered by oil and bio heating oil or gas and bio gas with an ultra-compact design. It also enables exceptionally high efficiency levels – a fact that doesn’t just make good economic sense: our climate, too, benefits from the efficient use of fossil fuels and alternative energy sources.
Air-Injector. A directional fresh air supply.
Fresh, clean air is the basis for health and quality of living – even in large industrial spaces. Indoor climate systems provide excellent air quality and economic efficiency. The core of a Hoval indoor climate system is the Air-Injector, a patented and fully automatic vortex air distributor. It distribu-tes the air uniformly and thus reduces heat loss through the roof – creating an ideal environment for productive work, relaxed shopping, informative trade fair visits and active sports.
Horizontal burner. Compact efficiency.
The horizontal tube burner for pellet boilers is a significant step in the development of wood heating systems. The new burner technology from Hoval permits an extremely compact design and is less susceptible to malfunctions than conventional retort burners. This system makes heating with pellets, a renewable resource, virtually as comfortable as generating heat with a modern oil or gas heating system – and suitable for facilities like multi-family homes, nursery schools, community centres and schools.
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Hoval system solutions.Recognising and utilising natural relationships.The sun evaporates water. Clouds form. Snow falls in elevated areas. It collects and is compressed into glacial ice. Melt waters feed rivulets, streams and rivers, and cool and invigorate the Alps. Hoval transforms these cycles into energy-saving, reliable and easy-to-operate heating and climate systems. Nature is the best teacher when it comes to offering one-stop shop solutions for different energy sources.
The “small” ecosystem.
Large buildings such as supermarkets and high-rises, but also smaller structures like nursery schools and offices, usually rely on a multitude of components for heating, cooling and ventilation. Combining these into an intelligent network creates a kind of ecosystem that makes optimal use of energy.
This type of holistic approach demands special control systems, which ideally should be expandable. Hoval develops these on the basis of powerful microprocessor technology. Despite or perhaps because of modern electronics, their handling is easy and convenient. Remote access via the Internet will become increasingly important in the future.
Competence in all areas.
As a single-source supplier, Hoval has the necessary expertise in all areas of heating and climate technology. Our engineers working in the various departments have a common goal: to develop system solutions that save energy, and thus to lower costs and CO2 emissions.
For this type of system to be developed and to function properly, specialists are needed in another area as well: service. It is the service specialists who handle advance consultation, detailed planning, ongoing service and maintenance. Thus, when customers choose a Hoval system solution, they acquire a comprehensive, smoothly-functioning, total package.
2°C-18°C
20°C
Illustration: Utilising synergies. All Hoval components interact smoothly and support each other.
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A hike in the mountains quickly teaches you that the shortest route is not always the safest. A sense of responsibility dictates which path to take. The same applies to financing, where short-sightedness increases the risk of follow-up and maintenance costs. Hoval is different. Hoval quality and intelligent system technology ensure a pleasant outlook into the future.
Energy costs. Today and tomorrow.
Hoval does everything to ensure consistently cost-effective operation. Efficiency is the key. With cutting-edge developments, Hoval ensures that its products are among the most efficient of their kind. Over the years, this will not only save a considerable amount of money but it also spares resource and lowers CO2 emissions. These savings mean that possibly higher investment costs are amortised within just a short period.
The life cycle. Cost-effective from the start.
Planning costs: Professional planning takes savings potentials into account. It sizes the performance of a system to the actual requirements and is therefore the foundation for long-term economical operation.
Procurement costs: A complete system encompasses all relevant components from the start. This avoids unwelcome, costly surprises concealed behind the initial investment.
Installation costs: Ready-to-connect units simplify and accelerate the installation procedure on-site. In addition, if installation is performed by specialists, the costs remain manageable and low.
Operating costs: Power-saving technology and high efficiency levels ensure cost-effective operation. In light of rising energy prices, this results in a significant savings potential.
Service costs: Products that are inherently less susceptible to repairs and malfunctions generate lower service costs. Maintenance agreements additionally help spare the wallet and soothe the nerves.
Disposal costs: Delayed disposal costs for heating and indoor climate units improve the cost/benefit ratio. In addition, environmentally compatible materials make recycling easier.
Foresight pays off.In the mountains and at home.
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Life cycle
Peter GernerHoval Group management board and CEO Heating Technology:
“It will never be our goal to be the cheapest. Our aim is to offer customers the best possible cost/benefit ratio as measured by the life
cycle of our products. And we do this with sophisticated system solutions, expert consultation and reliable service.”
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Eduard SchmalHead of Development, Solar Systems:
“Using the natural energy of the sun for heat generation is an ancient principle that we have raised to a new level of sophistication. Protection of the environment, efficiency and cost-savings for the user are among our key goals.”
Photo: Cross-section of a Hoval pan collector.
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Solar energy.Warm water for alpine lakes and bath tubs.
More energy at no extra charge.
Hoval solar-powered systems are a part of Hoval system technol- ogy. They can be combined with Hoval heating systems such as heat pumps or pellet, gas and oil heating systems to form highly efficient and easy-to-control overall solutions. Their cost savings are striking: in well-insulated buildings, they reduce consumption by up to 35 percent and in low-energy buildings even up to 50 percent. In addition, a solar-powered system can easily cover hot water demand in the summer.
Modern technology.
Even just a few rays of sun in winter or in cloudy weather provide enough energy for hot water production. A special heat transfer fluid in the solar collectors guarantees reliable operation at every temperature. A heat exchanger transfers the heat energy in the fluid to the water in the solar layer storage tank. This technology is emission-free and makes an active contribution to protecting the environment.
Entirely free of emissions and available in limitless supply – it fits with our sense of responsibility to make use of the most original of all energy forms: the sun. Hoval solar collectors and hot water storage tanks make solar energy accessible at home. They help power heating systems and produce hot water – even if the sun should disappear behind the clouds.
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The heat pump.At one with the natural elements.
Using existing warmth.
Just a small amount of electric power is needed to gain a large amount of heat energy with the help of nature. Heat pumps tap into existing energy in the earth, in water or in the air and use it to heat the whole house.
A heat pump can produce heat energy even at very low tempera- tures. Periods of peak demand can optionally be covered with an auxiliary heater. Safe and reliable operation is guaranteed by Hoval system components.
Numerous advantages.
The energy sources that heat pumps draw on are available year round and at no charge. This technology is particularly well-suited for buildings with good heat insulation. It is emission-free and achieves high performance values. Heat pumps with reversible technology are even capable of cooling if required.
Hoval uses only CFC-free agents – another benefit to the environment.
Whether replete with the summer scent of flowers or refreshingly pure in winter – air is an energy source, like spring water and the soil – and not only in the Alps. With a heat pump from Hoval, energy can be drawn out of the air, earth and water to heat buildings. And that’s not all: a reversible model of the heat pump can be used for either heating or cooling, as needed.
Photo: A glance at the axial fan of the Hoval Belaria®S.
Stefan MüllerHead of Development, Heat Pump Systems:
“Heat pumps multiply the existing natural energy and thereby enable the most efficient utilisation of primary energy. If the power that
drives the heat pump is generated in a CO2- neutral manner, then we
have succeeded in conserving energy and protecting the environment in the field of heat utilisation.”
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Daniel HegeleHead of Development, Biomass:
“The use of log wood or wood pellets in modern biomass combustion systems is highly beneficial for climate protection. No other heating system emits less of the greenhouse gas CO
2. In addition, there is no reliance
on other countries to provide the necessary fuel.”
Photo: Hoval BioLyt pellet tube burner.
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Heating with wood.Tradition meets innovation.
As practical as an oil heating system.
A major advantage of pellet heating systems is that they offer a level of comfort and operating convenience that is almost comparable to that of oil and gas heaters. Pellets are delivered in a tanker or in sacks and stored in a bin. Using a fully automatic conveying system, the required pellet quantities are automatically transported dust-free to the boiler. Because of an efficiency level of over 90%, two kilograms of pellets generate the same heat energy as one litre of oil.
An exceptional ecobalance.
Pellets are manufactured from wood industry waste products such as shavings and saw dust. These materials are compressed under high pressure without the addition of bonding agents. During combustion, the amount of CO2 released is no more than the amount originally captured by photosynthesis. Therefore, wood energy carriers are considered to be CO2-neutral and climate-friendly.
If log wood is available from the operator’s own resources in sufficient quantity, a log wood heating system is an ecological and economical alternative to pellet combustion. Our modern wood gasifier technology extracts a maximum of heat energy from this valuable resource.
Wood. The traditional source of heating energy in the Alps. Plentiful, renewable and CO2-neutral, this fuel is regaining popularity today as heating systems become more reliable, convenient and efficient. Sometimes the raw material takes on a somewhat different form: small cylindrical energy bundles, known as pellets, that consist of 100% natural scrap wood and meet the most stringent demands.
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The oil heating system.Technologically superior.
The energy carrier.
Heating oil has been a proven heat provider for many years. Hoval offers condensing units for all heating oil types. Modern oil combustion with condensing technology is convenient, low in consumption, energy saving and environmentally friendly – especially when using the new, low-sulphur oil types.
The environment says thank you.
Compared to older models, modern units powered by low-sulphur oil minimise the environmental damage caused by acid rain. The sulphur emissions that lead to this phenomenon are reduced to almost zero. The lower fuel consumption also has a positive impact on our climate. In addition, thanks to Hoval system techno-logy, a condensing oil boiler can be readily teamed with other energy carriers such as solar collection systems configured speci-fically for this boiler. This helps preserve valuable energy reserves for the future.
Hoval is a true trailblazer when it comes to saving energy. Its condensing oil boilers are exceptionally efficient and were considered to be a pioneering achievement when they were first introduced. They utilise the heat energy of water vapour emitted during combustion – just one indicator of the expertise that went into developing this system. What do we learn from this? Those who deploy their energies sensibly are well-equipped for rapid progress.
Günther KöbHead of Development, Fossil Fuels:
“With the UltraOil® boiler series, Hoval offers a compact condensing oil unit for installation anywhere – from single-family homes to large buildings. UltraOil® converts
the valuable energy contained in the fuel into usable warmth. The technology is environmentally friendly and reduces operating costs considerably. The combustion of
low-sulphur extra-light heating oil with UltraOil® is as clean as when burning natural gas.”
Photo: Patented Hoval MultiJet® jet inserts.
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Günther KöbHead of Development, Fossil Fuels:
“The UltraGas® condensing gas boiler is probably the most efficient and economical heat generator available today. The UltraClean combustion system reduces pollutant emissions to a minimum level and the sturdy boiler construction guarantees a long service life.”
Photo: The patented aluFer® heat exchanger is the heart of an entire product family built on gas condensation technology.
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A hot air balloon is the best way to enjoy the serene beauty of the Alps safely from above. Fuelled by gas, it breaks the bonds of gravity to give its passengers a unique natural experience. Inspired by natural gas as an environmentally compatible energy source, Hoval developed condensing gas boilers that take advantage of its benefits and ensure that balloon rides through the clean Alpine air will continue to be possible in the future.
The gas heating system.Rising to great heights with high efficiency.
Safe and comfortable.
Natural gas reaches the consumer through subterranean pipe systems. It needs to be neither stored nor bought in advance. The emissions from natural gas combustion are odourless, non-toxic and practically free of sulphur dioxide. Hoval conden- sing gas boilers can be continuously regulated and can be readily combined with other technologies such as solar-powered systems.
Modern technology.
Natural gas is ideally suited for gas condensing technology. Hot water vapour in the exhaust is cooled down to 40 to 50° Celsius in the boiler. The water condenses and releases condensation heat, which is returned to the system. This enhances the heat yield and helps save natural gas resources.
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Residential ventilation.Like breathing deeply under open skies.
A healthy interior climate.
A person needs between 20 and 75 cubic metres of air per hour. Controlled ventilation continuously provides the necessary amount of oxygen in living areas. Windows can stay closed, avoiding draughts and keeping out street noise and pollen. Constant humidity levels ensure additional comfort and help preserve the building structure.
Heat and humidity recovery.
When air escapes through open windows, its heat energy is lost forever. Not so with Hoval residential ventilation. The HomeVent® unit transfers the heat energy and humidity contained in the outflowing air to the fresh supply air. Even the energy of the water vapour is recovered. The energy savings gained through this additional measure are far larger than the energy consumed.
When we catch our breath in the Alps, it is the breathtaking landscape that disarms us, not the lack of oxygen. The scenario is quite different in “airtight” rooms. To supply interiors with a sufficient amount of fresh air, Hoval breaks new ground in residential ventilation. Thirty years of experience with air technology and a solution-oriented approach now let flats and multi-family homes breathe easy.
Photo: Detailed view of the sorption heat exchanger in Hoval HomeVent®.
Patrik WoerzHead of Residential Ventilation:
“Fresh air is not just fresh air. Our model is the fresh Alpine air.With the HomeVent® residential ventilation unit, Hoval demonstrates
decades of experience in heat and humidity recovery.”
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Stephan EderHead of Climate Technology:
“In Hoval indoor climate systems, the uncompromising networking of individual processes such as heating, cooling and ventilation, and the detail in which they are implemented, ensure maximum energy efficiency – with results that are verifiable and sustainable.”
Photo: The patented and fully automatic Hoval Air-Injector vortex air distributor.
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Indoor climate systems.A fresh breeze from the Alps.
Tailored solutions.
An indoor climate system from Hoval is the ideal solution for large spaces of all kinds, ranging from sports centres to aircraft hangars. It supplies fresh air, removes used air, and heats and cools if desired. It consists of separate modules that can be combined as needed. The individual units are distributed throughout the area, installed on the ceiling or in the roof. They direct air downward into the open space, uniformly distributing the heat in the interior and thus substantially reducing heat loss through the roof.
Modern technology.
The core of the indoor climate system is the patented Hoval Air-Injector. It generates a draught-free supply of fresh air and high ventilation efficiency. Specially developed software regulates the individual devices, controls how they interact and ensures an optimal use of resources, all in the interest of keeping operating costs down.
The use of low-emission energy sources and gas condensing technology for heat generation guarantees very high environ- mental standards.
Cloud formations reveal a lot about Alpine weather. Yet reliable predictions require an understanding of the complex interplay between wind direction, temperature, air pressure, humidity and many other factors. Not an easy task. Hoval found a solution that resulted in systems capable of creating a comfortable climate in large spaces while minimising energy consumption.
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Heat recovery.When the Alps cool down.
A closed system.
Using energy more than once is the idea behind recovering the energy in warm and cold air. It is used in air, climate and process technologies, enables considerable savings of primary energy and reduces CO2 emissions. Before a ventilation system directs used air to the outside, a heat exchanger extracts the heat (or cold energy) it contains and transfers it to the supplied fresh air.
Savings effects.
Hoval takes advantage of the laws of nature: if the temperature in a plate heat exchanger sinks and the humidity in the air condenses, additional heat is released. This markedly increases the efficiency of heat recovery.
A rotary heat exchanger not only transfers heat but humidity as well. In winter this prevents rooms from drying out. In summer the outside air is dried as it enters into rooms, greatly reducing the power requirements in systems with mechanical cooling.
A glance over an Alpine meadow early in the morning reveals wet grass. A simple physical phenomenon let dew drops form overnight: humidity in the air condensed on the leaves in the cool night air. The same principle is behind Hoval heat recovery systems. Combined with our enthusiasm for technology, it provides superior efficiency levels and a pleasant indoor climate.
Photo: Focus on the special profile of a Hoval plate heat exchanger.
Stephan EderHead of Climate Technology:
“The recovery of heat from used air is state-of-the-art technology today and is legally required in many countries. As a pioneer in
this area, Hoval recognised the enormous savings potential and developed powerful products as early as the 1970s.”
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The forecast is favourable: good weather from the Alps is spreading across Europe – and even beyond – thanks to the techni-cal superiority of indoor climate solutions from Hoval. The weather map contains an increasing number of locations that have been visited by the Hoval family and brought up to the latest standards in climate technology.
High pressure areas.The Hoval reference systems.
Hoval technology: the choice of royalty. It is hardly plausible that Queen Elizabeth II herself would personally decide what sort of heating and hot water systems should be installed in Windsor Castle, Buckingham Palace or in her official residence in Scotland, the Palace of Holyroodhouse. However, there is no question that quality, reliability and durability all play fundamental roles in the decision, given that Hoval has equipped all three palaces, has been entitled for decades to carry the mark of «By Appointment to Her Majesty the Queen» and continues to receive follow-up orders. In all modesty we can therefore conclude that Hoval products fulfil royal expectations.
Buckingham PalaceLondon, United Kingdom
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Imagine strolling over the red carpet, past the marble busts and gilded baroque columns, and letting yourself fall into the plush upholstery of an armchair. The curtain is raised: “Così fan tutte” by Wolfgang Amadeus Mozart.
“Thus do they all” – the literal translation of the opera title – could also apply to the heating plant: the National Theatre in Prague equipped its system with two Hoval UltraGas® 1440D boilers. This is a popular choice when technically modernising an older or even historic building. Cutting edge technology is at work inside the UltraGas® boiler: the aluFer® heat exchanger, an exclusive product from Hoval. The integrated heat exchanger reclaims up to 15 percent of consumed energy. This protects the environment – as well as the finances.
Considering the National Theatre’s positive experience with this system, the Estates Theatre in Prague and the Prague State Opera also installed Hoval UltraGas® boilers. Energy-efficient technology is a Hoval tradition – as traditional as opera in Prague theatres. In addition, Hoval has set the stage for sustainable energy solutions of the future.
The National Theatre Prague, Czech Republic.
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There is only one place where you can sit high in the mountains, 2500 metres above sea level, in the front row of the Alps: on the Säntis. The soft blue waters of Lake Constance spread out to the south and Lake Zurich is visible to the west. Toward the north lies a sea of 2000 majestic mountain peaks. On clear days, the panorama reaches all the way to the Zugspitze and the Ortler, to the Eiger, Mönch and Jungfrau.
On the Säntis, people work non-stop. Day and night. The rocky summit points a long “finger” 123 metres into the sky as a symbol of this activity: the Swisscom antenna mast for the transmission of radio, television, telephone and mobile network signals. While the wintry frost turns the antenna into a bizarre sculpture, guests are warmly gathered in Alter Säntis, the nearby mountain inn. Ruedi Manser, the founder’s great grandson, shelters “hikers, stargazers, mountaineers, full moon worshippers, people seeking peace and those just escaping the fog”, as he himself phrases it. Years ago, the cable lift brought two Hoval Uno-3 boilers onto the mountain. Ever since, they have been performing their services reliably -- not a small matter, since service technicians are not able to drop by at short notice.
SäntisSchwägalp, Switzerland.
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The religious and worldly men who once built St. Peter’s Basilica and the other Vatican buildings in the centre of Rome were people of grand gestures and monumental visions. But how is the official residence of the Pope – the Palazzo Apostolico – actually heated? Those who surmise a monumental heating plant are mistaken.
Together with Vatican technicians, Hoval specialists sized the plant’s power output to the actual energy requirements. In place of the three previous boilers with an output of 5.5 MW each, the plant now consists of three high-performance industrial boilers generating 3 MW each. The heating plant produces around 45 percent less power and the Vatican now saves energy – without turning down the heat on Pope Benedict XVI in his Palazzo Apostolico chambers and the people around him.
As a qualified and reliable partner, Hoval supplies numerous religious institutions in Italy. It has therefore been involved in the refurbishment of the Vatican heating plant and district heating network dating back to 1920. Notwithstanding the reality of energy efficiency, Hoval specialists are still overwhelmed every time they see St. Peter’s Basilica and the surrounding buildings.
Palazzo Apostolico,The Vatican.
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Vaduz Castle towers above the countryside with an imposing presence built on a solid foundation. It has become the emblem of Liechtenstein. The Prince, his family and the 36,000 inhabitants stand on firm ground. Within just a few decades, the small Alpine country has evolved from an agricultural society to a modern industrial nation. The value created by industry is even greater than that generated by the financial services sector.
Hoval headquarters are located near the castle. The company thrives on the tradition of the land, the harsh alpine climate and its own pioneering spirit.
Hoval products, which continue to impress new customers worldwide, are certainly appreciated by the royal family. A Hoval UnoLyt-3 (250) boiler, for example, ensures that the castle is kept pleasantly warm.
Vaduz Castle,Vaduz, Liechtenstein.
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Aircraft hangars, with a footprint of several football fields and the height of a multi-storey building, are among the buildings with the greatest interior open space. Buildings of this size require special technology for energy-saving, effective and zone-specific heating, ventilation and cooling. Hoval is particularly suited to this task, with its indoor climate system. The flexible, decentralised devices are recognised the world over as technologically and qualitatively superior systems. At the Praemium Aerotec Works in Augsburg, Germany, ninety RoofVent® LHW-9 fresh air units provide highly effective heating and ventilation in the hangar. In an efficient and pleasant manner, the Hoval Air-Injector distributes fresh air and warm air from a height of 18 m throughout the entire occupied area.
Premium Aerotec,Augsburg, Germany.
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Where comfort and well-being prevail, Hoval can’t be far away.
Encircled by mountain peaks and nestled in lush Ennstal meadows lies Thannegg Castle. These historic walls, erected in the twelfth century, have existed through glorious eras and changeable times. Since the mid-1980s, they have been revitalised by the innovative and creative spirit of Ernst and Gerlinde Schrempf. Severely dilapidated at the time, the castle is now an elegant four-star hotel with 45 beds.
Ernst and Gerlinde Schrempf, who attach great importance to environmental compatibility, selected a sustainable energy source for their heat supply. At the heart of the system are the Hoval Thermalia® 90X heat pump for underfloor heating and the Hoval Thermalia® 19H heat pump for hot water. A deep ground water well provides the primary heat source. The environmental protection measures taken at the Thannegg Castle are causing quite a stir: the castle received the “Energy Globe Styria Award” from the province of Styria in Austria.
Thannegg CastleGröbming-Moosheim, Austria.
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TIP: Further reference projects can be found in our Reference Handbook.
A lucky dragon rears up majestically over the megacity of Beijing: The curved colossus of steel and concrete, granite and glass houses the seven-star Hotel Pangu. The man who created the “Luxury Dragon” knows the value of national symbols: C.Y. Lee also designed the second-highest building in the world, the Taipei 101 skyscraper in Taiwan.
Opulently furnished guest rooms and suites, conference rooms equipped with the latest technology, elegant restaurants and of course a breath-taking view of the city: Hotel Pangu was the proper place for the Olympic Committee when sports stars from all over the world matched their skills in Beijing in 2008.
The noble hotel was completed just in time for the Olympic Summer Games. One week before the grandiose opening ceremony, the three Hoval steam boilers THSD-I 4000 E-C were put into operation and since then have been supplying the entire hotel with warmth. Hoval quality and the technical expertise of its specialists on location were pivotal. Personal commitment went even further. One Hoval employee stayed with the boilers day and night until the end of the Olympic Games and the departure of the Olympic Committee. As expected, the steam boilers did their duty, because luckily that’s all they know.
Hotel PanguBeijing, China.
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Company milestones
Mountain peaks. The history of the Hoval brand.Even the Alps started off small. Like the mountain range at the heart of Europe, Hoval has grown into a firmly established entity: diverse, prominent, extraordinary. A look back reveals a fascinating history. We see a small metalworking shop in Vaduz, ground-breaking inventions and far-reaching decisions.
1897 Gustav Ospelt senior opens a metalworking shop in Vaduz in the Principality of Liechtenstein.
1932 His son, Gustav Ospelt, obtains the authorisation to build heating systems.
1945 The “Hoval” brand is registered. The name stands for Heating equipment construction Ospelt Vaduz Liechtenstein.
1946 First internationalisation with the establishment of companies in Austria and Switzerland.
1942 The cornerstone is laid: a simple stove gives rise to a central heating system. Gustav Ospelt patents his idea and the EMPA (Swiss Federal Laboratories for Material Science and technology) confirms its high efficiency in a test report for the first time.
1953 The first boiler with an integrated hot water tank, the Hovaltherm, nicknamed “the rocket”, revolutionises the European boiler market.
1960 The first compact combination boiler with separate combustion chambers for liquid, gaseous and solid fuels is ready for the market – in eight different versions.
1967 The first high-performance water heater, Modul-plus, still guarantees the highest levels of hot water comfort today, perfoming superbly under fluctuating peak requirements while meeting the most stringent water hygiene specifications.
1968 Hoval receives its first heating surfaces patent, called the “Fischgratrohr”, or “fish-bone tube”, which achieves enormous gains in heat transfer
and therefore in efficiency. Further heating surface patents follow in 1972 and 1979.
1955 A licence agreement with the Friedrich Krupp steel company for steel boilers generates rapid growth and opens up the German market for Hoval.
1957 Construction of the “Neugut” site in the Vaduz industrial zone. Since then, this has been the headquarters of the Hoval group of companies.
Product milestones
41
1957 - 1967 During this decade, companies are founded in Great Britain and Italy, and additional favourable licence agreements are signed.
1967 Hoval celebrates a milestone: the 100,000th boiler leaves the Vaduz works. In all of Europe, 350,000 Hoval boilers have already been built by this time.
2001 - 2004 Hoval expands its worldwide sales network to include its own branch offices in Poland, the Czech Republic and Slovakia.
2005 After over 20 years of doing business in China, Hoval establishes its first sales company in Asia.
2006 - 2008 The newest Hoval sales companies open their doors in Romania, Spain, France and Croatia.
2008 Hoval invests in the production of heat pumps with Wärmepumpen GmbH in Matrei (WPM), East Tyrol.
2010 Hoval introduces a new business sector of heat transfer stations and combined heat and power plants.
1970 Expansion of the product spectrum to include industrial ventilation units and aluminium plate heat exchangers for heat recovery in climate control and ventilation systems and in processing technology.
1976 Introduction of a decentralised device for ventilating industrial halls with heat recovery. Use of this device reduces heating energy needs by up to 60 percent.
1979 Registration of a trend-setting patent: the self-cleaning thermolytic heating surface. An entire series of small and medium-sized boilers is named for the Hoval achievement: their names end in “Lyt”.
1982 Hoval starts a development project with Ruhrgas Deutsch-land for gas premix burners. These burners guarantee particularly low levels of pollutants during combustion. The new development enters into series production in 1986 under the name of Ultraclean®.
1984 Hoval develops a unique vortex air distributor, the Air-Injector, for even greater efficiency in the ventilation and heating of industrial halls.
1987 With the wood gasification boiler, Hoval introduces gasification technology for biomass. The three-stage combustion method soon becomes the market standard.
1993 Research on the most efficient condensing technology culminates in the patented Hoval aluFer®, a heat exchanger with an integrated aluminium microstructure. Energy efficiency, cost savings and a long service life are only some of the advantages of a whole generation of gas condensing units, which first went into series production in 1994.
1994 The patented technology of the first Hoval recirculation cooling unit makes cost-effective heating and cooling of high spaces possible with just one device.
1999 Hoval launches the MultiJet® oil condensing boiler, with a revolutionary heating surface. Its technology with jet inserts achieves optimal heat transfer levels, resulting in excellent efficiency, very quiet running and an exceptionally compact design.
2001 The use of alternative energies enters a new dimension with the development of the horizontal tube burner for pellet boilers. Efficient, compact, reliable and comfortable – these words describe the conversion of wood to heat by the BioLyt series (2005).
2004 Hoval develops a special sorption coating for thermal wheels, which transfers not only heat but also humidity.
This technology creates a constant, pleasant indoor climate and superb living comfort by means of ventilation systems featuring cooling or humidity control, such as the HomeVent® controlled home ventilation system.
2006 UltraOil®, the first oil condensation unit based on the aluFer® heat exchanger, goes into series production. Today, this is a highly successful product group that generates power outputs of 16 – 200 kilowatts.
2007 Environmentally friendly cooling with refrigerant-free recirculation, not only reducing water con- sumption but achieving maximum adiabatic efficiency levels.
“Openness, creativity and fairness are the principles we act on.”
Peter Frick, Chairman of the Board of Directors, Hoval Group
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LiechtensteinHoval AktiengesellschaftAustrasse 709490 Vaduz+423 399 24 [email protected]
SwitzerlandHoval AGGeneral Wille-Strasse 2018706 Feldmeilen ZH+41 44 925 61 [email protected]
AustriaHoval Gesellschaft mbHHovalstrasse 114614 Marchtrenk+43 50 [email protected]
Germany - Heating TechnologyHoval GmbHKarl-Hammerschmidt-Strasse 4585609 Aschheim-Dornach+49 89 922 [email protected]
Germany - Climate TechnologyHoval GmbHFreiherr-vom-Stein-Weg 1572108 Rottenburg/Neckar+49 7472 [email protected]
Great BritainHoval Ltd.NorthgateNewark Notts. NG 24 1JN+44 1636 672 [email protected]
ItalyHoval s.r.l.Via per Azzano San Paolo, 26/2824050 Grassobbio (BG)+39 035 52 50 [email protected]
FranceHoval SAS6, rue des Bouleaux67100 Strasbourg+33 388 60 39 [email protected]
SpainHoval S.L.C/ Andoain, 27-2920009 San Sebastian+34 943 21 95 [email protected]
CroatiaHoval d.o.o.Nova ves 7010 000 Zagreb+385 1 466 [email protected]
Czech RepublicHoval spol. s.r.o.Republikánská 4531204 Plzeñ+420 377 261 [email protected]
PolandHoval Sp. Z.o.o.ul. Bałtycka 661-013 Poznañ+48 61 874 38 [email protected]
RomaniaHoval s.r.l.Str. lovita nr. 11/Sector 5050686 Bucuresti 1+40 21 410 30 [email protected]
SlovakiaHoval SK spol. s.r.o.Krivá 2304001 Kosice+421 55 680 64 [email protected]
ChinaHoval Ltd.Rm 0901 GuangMing BuildingLiangmaqiao Road ChaoYang District100016 Beijing P.R. China+86 10 646 36 [email protected]
Hoval Group
