As the climate is so different in the summer and the winter, the hotel needed a highly efficient energy system. It needed to be able to heat in winter and cool in summer. The customer wanted to use renewable energy and was committed to investing in the very latest technology.
Hotel Impozant is located in Valča, a village and municipality in the Martin District of the Žilina Region of Northern Slovakia. It is part of the Mala Fatra mountain range and is surrounded by the most beautiful, almost magical, scenery.
The hotel itself is a newly renovated four-star hotel, with 33 beautifully appointed rooms and 2 luxurious suites. The rooms are exceptionally comfortable and most have balconies with superb views of the ski area. Hotel Impozant has a wellness center with five different types of sauna, as well as indoor and outdoor swimming pools. The hotel is a perfect base for many types of sporting activities, including cycling, horse riding and snow skiing. It is located just a few meters from the ski slope in the Valčianska Valley, guaranteeing easy access for all skiers. There is also a conference center with two congress halls, which have capacity for 120 and 250 guests.
Thermia Mega brings energy-efficient heating and cooling
We chose the Thermia Mega M heat pump (11-44 kW) to heat and cool the building and provide hot water. We used Muovitech's TurboCollector as the ground collector.
Passive building construction is a building design strategy that uses natural sources of heating, cooling, and ventilation to create comfortable, environmentally friendly, and affordable buildings. A critical part of this is a modern and sustainable heating and cooling system, which Thermia provided for "Zelena rašica", 3 villa blocks with a total of 12 apartments.
Superbly efficient system
The owner of the Bø Hotell, Stein Helge Solberg, recognised the need for a completely up to date new heating system.
With a very old energy system using a standard electric boiler, Bø Hotell was consuming about 660.000 kWh/year and, with the ever-increasing electricity prices, the heating costs had got to €170.000 a year. Something had to be done. The hotel has an enormous demand for hot water, particularly in the mornings when the rooms are filled with guests travelling to the Waterpark in Bø Sommarland, often a whole family per room.
In 2022, the Bø Hotell in Norway switched from a 50-year-old energy system to renewable heat pumps from Thermia.
This luxurious resort has eight beachfront apartments, a restaurant and a sauna.
Thermia harnesses natural resources to create a unique energy system for the Jasna Chalet Resort
Overlooking lake Jasna in the Slovenian Alps, the Jasna Chalet Resort in Kranjska Gora is just a few meters from the lake.
The history of this thermal resort begins thousands of years ago, when the mild climate without fog or cold winds attracted the first settlers.
Terme Dobrna is the oldest working Slovenian thermal spa, with a history dating back 600 years.
Today it is the most luxurious and stylish boutique hotel and spa, offering health and tranquility, with super-modern thermal efficiency, courtesy of a low carbon energy system using Thermia ground source heat pumps.
The ongoing success and constant growth of the Bemit Group and the companies it serves has led to increased demand for logistics services, particularly state-of-theart storage for all different types of products and materials.
A brand new, 28,000 m2, logistics complex, with 16,000 m2 of storage space, near Ljubljana, the Slovenian capital: ultra-modern, ultra-efficient, ultra-flexible and powered with renewable energy from Thermia ground source heat pumps.
The Bemit Group is a highly dynamic organisation that provides a wide range of services to companies both within and outside the group, including comprehensive logistics services.
The factory in Krupina has a leading position in Brother Group in re-manufacturing and recycling color and monochrome toner cartridges for laser printers.
Brother Industries s.r.o. located in Slovakia is one of the 28 manufacturing plants of the Japanese company Brother Industries Ltd and has leading position in re-manufacturing and recycling of cartridges for laser printers.
Located in Krupina, Slovakia, BROTHER INDUSTRIES s.r.o. is one of the 28 manufacturing plants of the Japanese company Brother Industries, Ltd.
The tenant-owned housing association installed four Thermia Mega XL ground source heat pumps to complement the existing facility. Thanks to the smart inverter-controlled heat pumps combined with an efficient system solution, running costs have been significantly reduced.
Disintegrating sewage pipes came as an unexpected surprise to the board of the newly formed tenant-owned housing association Koppartältet. Things did not get any easier when they contacted the bank for funding to solve the problem.
At first, the bank said no. But then we proposed turning it all into an energy project that could save a lot of money and suddenly the bank became more positive.”
Environments worthy of our children – that is the vision of the real estate company Futurum. This vision reveals a lot about the company’s ambitions.
Änglanda school in Örebro, Futurum has invested in stored solar energy and locally produced heat, consisting of a unique solution involving solar cells, heat pumps and battery storage.
There’s only one way to store seasonal solar energy, and that’s with heat pumps.”
As the largest HVAC solutions provider in Slovakia, Empiria operates ten wholesale outlets as well as the Empiria Express network of self-service shops and eight Lefresh bathroom studios.
Empiria is Slovakia’s leading wholesaler for HVAC solutions.
The company recently made a significant commitment to green energy by installing Thermia Mega and Atec units to provide comfortable heating and cooling for visitors and employees alike.
The center is a public medical facility specializing in cancer treatment. It has cancer surgery, radiotherapy and clinical oncology wards, as well as specialist outpatient clinics and diagnostic labs.
Situated in Szczecin, overlooking the Odra and surrounded by forests and parks is the West Pomeranian Oncology Center. This facility provides top-quality medical services while also caring for sustainable development and the natural environment.
„The biggest challenge for me as an engineer was to build such large and complicated energy system without disrupting the normal operation of the hospital. Creating an RES hybrid system, in which heat pumps are powered using electricity from EV panels, decreases demand for mains electricity and has significantly reduced the hospital’s operating costs” - Przemysław Kobeszko, head of the contracting firm Makob Kobeszko Sp. z o.o. Sp K
Hammershus is Scandinavia’s largest medieval fortification. It is situated 74 meters above sea level on Hammeren at the northern tip of the Danish island of Bornholm in the Baltic Sea. The site consists of the main castle residence and the imposing Mantel Tower, and is surrounded by a great wall of stone that stretches 750 meters around the castle grounds.
On a steep rocky promontory at the northern tip of Bornholm sits the impressive medieval fortress of Hammershus. It is a perfect destination for the whole family, offering an exciting mix of adventure and history, nature and relaxation in the comfortable visitor’s center powered by green, geothermal energy.
Thanks to this modern and efficient geothermal energy system, visitors, guests, students and employees can learn about Danish history in comfort.
In 2018, a new campus building was inaugurated that gathers together all Bornholm’s education in one place. The physical merger of the island’s youth, adult and continuing education was one of the largest projects ever on Bornholm.
In 2008, the Regional Municipality of Bornholm decided that by 2025, the island should become a 100% sustainable and CO2-neutral society, using only sustainable and renewable energy. Accordingly, the island has been converting its energy systems to fossil-free energy by investing in wind farms, photovoltaic panels, heat pumps and biomass. The islanders’ ambition is to increase production of green energy to cover 100% of local consumption.
By 2025, we want Bornholm to be a sustainable and CO2-neutral island.”
The energy from the warm indoor air is reused before it leaves the building through the ventilation system.
Apartments were built in 1965. To begin with residents had oil heating for a long time, then local district heating, and after that they added geothermal heating and exhaust air heat recovery.
Heat from the room was escaping into the atmosphere
That's why residents thought about getting geothermal heating. Gas energy costs last year were around 55,000 euros and they estimated that they would be able to save around 30,000 euros a year.
Area previously had natural gas heating, and residents thought that was a bit old-fashioned.
Save around 30,000 euros a year
The school teaches around 100 children, from preschool to 6th grade. It is beautifully situated close to lake Peipsi, the largest lake in Estonia, through which runs the border with Russia. The schoolyard is spacious and there is a gravel area used for football and other games. The school site is surrounded by greenery and there is a small lake nearby.
Public buildings are major users of energy. The use of heat pumps is an innovative and creative way of thinking green and is a solution that will contribute positively to reducing CO2 emissions in the years to come. In addition, they are capable of achieving large cost savings.
Alatskivi elementary school is located in the Tartumaa region of eastern Estonia.
From the outset of the project, the investor in the new headquarters wanted to include renewable energy facilities that would provide the latest energy-efficiency technologies. After extensive research, the choice was made to use Thermia ground-source heat pumps to provide all the heating, hot water and cooling via geothermal energy.
Baltic Agro Machinery OÜ is the official representative of John Deere agricultural and gardening technology in Estonia. With three offices in the region, Baltic Agro sells machinery and spare parts, provides after-sales services and advises customers on the use of John Deere farm technology.
In 2016, the decision was taken to construct a new head office building with a showroom, back office, warehouse and maintenance workshop.
The capacity of Hot Springs Medical & Spa Hotel is 300 people, located in 139 great rooms in 8 different categories. Each of the rooms at the hotel has a balcony and an incredible view of the mountain or the forest. For the convenience of guests, hotel feature a great restaurant, a lobby bar, a children's playground for our youngest visitors and, of course, the unique spa and medical center.
Hot Springs Medical & Spa is located in the village of Banya, which is situated in the beautiful Razlog valley in south part of Bulgaria. The village of Banya is a wonderful place: not just with a climate that is famous in Bulgaria, but also because we have an amazing wealth - our healing mineral water, which is not only a rich resource for the residents of Banya, but also for the many guests who visit hotel and complex.
Investor bet from the beginning on the inclusion of renewable energy facilities that will provide the latest technologies in energy efficiency. Therefore, the heating and coling system obtained by geothermal energy provided by Thermia ground source heat pumps.
The heating and cooling system is based on Thermia Mega L (14 – 59 kW), a new commercial ground-source heat pump with inverter-driven compressor. The new energy solution has enabled the management of the Montegancedo student residence to offer extremely energy-efficient housing that is sustainable, renewable and guarantees superior comfort in its apartments.
Located in the municipality of Pozuelo de Alarcón near Madrid, the brand new Montegancedo student residence has 1,200 m² of usable space and comprises three floors: basement, ground and first floor. The ground floor contains office space and a private residence. The ground floor has twelve apartments and the first floor ten. The building requires heating, cooling and hot water all year round and the distribution system uses fan coils.
“Thanks to Thermia’s modern and efficient geothermal energy system, students can study in comfort and the management of the student residence is able to offer extremely low-energy housing that is sustainable while also saving money.” architect Javier Ruiz Chércoles
The Willis building was realized by Belcotec as an innovation center for its own use. “We named it in honor of the inventor of air-conditioning, Willis Carrier”, explained Jan Vangeel, CEO at Belcotec, and added: “We wanted to make a statement with our own building. The energy level is 28, which is very low for office buildings.
Belcotec is an HVAC installation company that specializes in the realization of high-quality installations, providing tailor-made solutions in heating, air-conditioning and sanitary installations for commercial properties. Clevr is an installation company dedicated to homeowners and self-builders. Belcotec and Clevr have combined their respective strengths to create something unique. The way they complemented each other and their mutual ambition led to the Willis project. An ultra-modern building that stimulates innovation and sustainability.
“The Willis building is more than just an office: it is an open area with different types of workspaces, creating an atmosphere that inspires innovation. Multi-functional, comfortable, bright and adaptable are the key words to describe its design.” - Charlotte Ooms, Architect, Archiles Architecten
The group wanted to update its heating system so it turned to the experts at Ashgrove Renewables for a solution.
The Giggles Childcare Centre has the capacity to cater for up to 160 children and has 25 staff on board which includes fully qualified childcare professionals as well as receptionists, chefs and maintenance personnel. The Giggles offer full day care to children from 6 months old to school age as well as both an indoor and an outdoor pre-school. They provide also
afterschool care all year round. Children can avail of before and after school service or full days when schools are closed.
“What was needed was a lower running cost system. The weather compensation control is a predictive control and this helps increase the energy efficiency of the system.” Peter Russell, Sales Representative at Ashgrove Renewables
The Aletschspa is heated by two inverter-driven Thermia Mega ground-source heat pumps with a heating capacity of 14-59 kW. Ground water with a temperature of around 10°C is the energy source for the heat pump. The heating system covers floor heating as well as pool and floatation pool heating. Cooling (air-conditioning) is provided by passive cooling, which means that energy to cool the facilities comes from the ground water.
The Aletschspa is the newest part of the Alex hotel and is fully dedicated to spa and wellbeing facilities. It features an 80 m2 pool and offers many ways to relax, from the ergonomically shaped bubble loungers to the air-filled “aqua rondo” water station. The spacious pool has enough room for aqua-fitness. Children can enjoy splashing around in the small fountain in the separate children’s pool.
“Thanks to Thermia’s modern and efficient geothermal energy system, the new Aletschspa can entertain its guests in the knowledge that they are caring for the environment and saving money.” Milos Bill, Managing Director, eta Group
Four Thermia Robust heat pumps, each with a capacity of 42 kW, were installed in the Löfbergs arena in Karlstad in 2012. The heat pumps both warm the huge buildings and cool the ice in the main arena and the training hall. Before the installation of the heat pumps, annual costs for district heating exceeded 1.5 million SEK.
Löfbergs Arena is a year-round resort with many activities in addition to its principal role as the home of the Färjestad hockey team. As well as providing heat, the heat pumps provide comfortable coolness in the summertime for the office, conference guests and fitness facilities.
Energy costs have been reduced by more than 45%.”
It is easy to think of Madrid as a place of constant warmth and sunny skies. However, Madrid is actually surrounded by snow-covered mountains, where you can ski for most of the winter. This same mountain forest is home to a newly renovated 1,200 m2 villa. The traditional option for heating this kind of property has always been oil-fired boilers or even wood.
Heating demand: 143 326 kWh
Cooling demand: 35 831 kWh
Functions: heating, hot water and cooling
Applied renewable solution:
• Thermia Mega XL (21-88 kW)ground source heat pump
• 750 TW-C water heater from domestic hot water
Heating / Cooling distribution system:
• Underfloor heating
• Underfloor cooling
Completion date: October 2016
Thanks to Thermia Mega’s modern and efficient geothermal energy system, house owners can enjoy comfort all year round with a low carbon footprint and real money savings” - Miguel Madero Wage, General Director at Girod Geotermia
All apartments are equipped with the most advanced solutions in terms of energy saving, as well as high-efficiency solutions for thermal and acoustic insulation.
The Barrico Residence is an apartment complex set in a green landscape and situated near Lake Varese, Italy. The Baricco Residence suits both active people and those who want a taste of tranquility. The complex is perfectly located, close to the historic center and major shopping streets of Varese.
The Barrico Residence apartments are equipped with the most advanced solutions in terms of energy saving. The use of geothermal energy achieves significant cost savings on heating, domestic hot water and cooling in the summer.”
The hotel and spa are heated by Thermia ground-source heat pumps. 18 Robust heat pumps with a total capacity of 715 kW provide heating, cooling and hot water to 24,000 m2 of hotel rooms, the spa, offices, shops and apartments.
24,000 m2 of hotel rooms, SPA, offices, shops and apartments heated by Thermia heat pumps.
Strömstad Spa is a state-of-the-art hotel with 232 rooms and extended spa facilities. The spa itself covers 2,000 square meters across two floors. It is the only Decléor Flagship Spa in northern Europe and offers most spa treatments and products.
24,000 m2 of hotel rooms, spa, offices, shops and apartments heated by Thermia heat pumps.
The new home of the Recal Foundation is a stunning, contemporary prefabricated 400 m2 building, which was designed by the famous Spanish architect Joaquín Torres and cost 1 million Euros. The building has attracted local and international attention and recognition as an innovative project, designed and constructed to minimize use of resources and environmental impact.
Recal is a private, non-profit healthcare organization. Established in 2001, it boasts a highly professional team of human resource specialists, including doctors, therapists and volunteers. Their shared aim is to help individuals affected by addiction to any substance or behavior to reintegrate into society, including providing family support.
“We like to take care of our patients, the environment and the resources we receive from our patronage. That is why we chose to install a geothermal system from Thermia, which takes care of our indoor climate all year round at a low cost”, commented José Manuel SAINZ Quintana, general director of the Recal Foundation.
Since 2012, Delta Informatica’s headquarters has been located in an industrial district Spini di Gardolo (the Trentino-Alto Adige) and operates in an office building that uses renewable technology. The office building is provided with underfloor heating and cooling, which is provided by four independent ground-source heat pumps operating in master/slave mode.
Delta Informatica Spa has been operating for over 20 years in the field of information technology and management consulting, offering different types of IT services from phone/online technical support to consulting and advance IBM AS 400 systems.
Savings compared with natural gas and air-conditioning amount to around 51%.”
Today, totally refurbished, the club offers its local and international members a range of high-quality services, varying from private tennis lessons and body-building to hot yoga, cross training, a 25-meter pool, a gym, rooms for yoga, pilates, spinning, petanque, a climbing wall, spa, relaxation area, beauty rooms, meeting rooms and a restaurant.
The Palma Sport & Tennis Club, formerly Mallorca Tennis, was originally founded in 1964. It was built by the renowned architect Francesc Mitjans, a native of Barcelona who designed the iconic Camp Nou football stadium and other significant buildings in Spain.
“Thanks to Thermia’s modern and efficient geothermal energy system, the new Palma Sport & Tennis Club can entertain guests in the knowledge that they are caring for the environment and saving money”, said Miguel Madero Wage, General Director at Girod Geotermia.
Part of the Group’s philosophy is to take a leading role in the introduction of innovative, environmentally friendly products and processes. Given its awareness of the importance of energy saving and energy efficiency in the consumption of resources, Porcelanosa Grupo continually invests in improving its facilities.
Butech was created in 2001 as part of the Porcelanosa Group with the aim of supporting the work of all professionals involved in the ceramic tile-laying sector. The company offers a wide range of materials and construction systems covering the needs of homeowners, installation specialists, builders and architects
“Inspired by their environmental core values, Butech decided use geothermal energy for heating and cooling. The results are impressive: 75% energy savings.”
The previous heating system was based on three pellet boilers with one additional oil-fired boiler as a backup heater. Heat is mainly distributed through the school via traditional radiators and, to a lesser degree, via hydronic floor heating
Edane elementary school is located 15 km east of Arvika, Värmland in Sweden. The school has around 100 children, from preschool to 6th grade. The schoolyard is spacious and there is a gravel surface used for football and other games. In the winter, this area is transformed into a skating rink. The Edane school belongs to the municipality of Arvika.
“We now have a reliable, innovative system that will last for years to come and we estimate a reduction in energy consumption of around 40 MWh per year”, added Per-Inge Andersson, head of education facilities in Arvika.
From the beginning, the investor planned to use renewable technology to heat and cool the building. The apartments are installed with underfloor heating and cooling.
In Trento, Northern Italy, a new 68-apartment complex has been constructed, partly for rental and partly for sale. The building is located in Monte Capuccini, an old quarry in the city of Trento.
Thanks to the use of geothermal and solar power, the Cappuccini apartments will long represent a shining example of efficiency, energy savings and environmental sustainability.”
Ashgrove Energy (Thermia’s reseller for the UK and Irish markets) designed an innovative energy solution for Oakhill Park in London. Three 42kW Thermia Robust ground-source heat pumps provide all the heating via the underfloor heating system, as well as covering the hot water requirements for the 60 apartments.
Oakhill Park is a luxurious property from the moment you walk through the door. Complete with concierge services, underground parking, private residents’ gym with state-of-the-art equipment and picturesque gardens, providing space for tranquility and relaxation.
Oakhill Park has achieved a Code 4 rating for sustainable homes. This is the highest level locally for a new development in terms of reducing energy needs while producing 44% less CO2 than a gas-based system.
Wellbeing is a priority at Goldene Zeit as part of the owners’ commitment to creating an ecological environment. The building has been created taking into account ecological and biological building aspects. Heating comes from geothermal energy and part of the hotel’s electricity supply is generated by its own photovoltaic system.
The Goldene Zeit is a cameral **** hotel with wellness and seminar facilities located in Georgenberg, Bavaria. The hotel offers spacious rooms presented in unique style and decor. Wellness offerings include various types of massage, health baths and skincare treatments, as well as a canyon room and sauna.
“We are completely satisfied with the heat pump’s reliability and the excellent service provided by Multitherm”, commented hotel owner Erika Holfelder
The total residential area is made up of 8,600 m2 of apartments and 1,400 m2 of other areas, such as the garage etc. The rising cost of district heating was the main reason why the residents started looking for new heating solution
HSB Fabriken (Hyresgästernas sparkasse- och byggnadsförening och fabriken) is a housing association in Arvika, a town in Vermland, Sweden. The association represents 11 buildings constructed in the mid-1980s, which are home to around 200 people.
All tenants now enjoy warmth and comfort in the winter while the housing association is able to save up to 65,000 Euro during each heating season.”
The company decided to build their new office in Bad Wörishofen. The most important investment requirement was maximum savings using renewable energy and maximum efficiency in heating and cooling the building.
MicroStep manufactures and supplies CNC (Computer Numeric Control) machines equipped with plasma, laser, oxyfuel, waterjet and 3D milling technologies.
“When MicroStep Europa decided to build a new office in Bad Wörishofen, the main criteria were energy efficiency and sustainability.” - Ondřej Kučera, IVAR
Two housing associations from the Jesenice community committed themselves to reducing their heating bills. This is the story of how two independent residential buildings implemented the same solution for domestic hot water production.
Jesenice is a Slovenian town located in the north of the country, close to the Alps and bordering Austria. It has a population of 13,000 inhabitants and is renowned as the Slovenian home of mining and iron forging.
“Costs plummeted by 70% resulting in the original investment being recouped in just 3 years.” - Yasin Jodeh, technical manager at Atlas Trading d.o.o.
A variety of sustainable energy sources have been used to heat the building, including solar panels and geothermal heat pumps. The Competence Centre building is and must show itself smart in the way it uses energy.
The Rakvere Smart House Competence Centre focuses on developing intelligent and smart technologies for the use of home and office equipment, automated building systems and building management. As well as being a local expert, it also actively participates in different European sustainable energy initiatives and advocates energy efficiency through innovative and smart buildings.
“Rakvere Smart House Competence Center – the Estonian way to sustainable and energy-efficient solutions.”