STELIX
smart HVAC onebox
A spatial miracle replacing the technical room for projects of family homes, apartment buildings, and commercial buildings. It is a modular, automated, and sustainable system that ensures the optimization of year-round indoor comfort, energy efficiency, and an intuitive user experience in buildings.
It was developed based on several demanding specifications – to create a pleasant indoor comfort while ensuring climate neutrality, reducing the carbon footprint, and the energy demand of buildings.
According to specifications, it is very compact in relation to the building area. It is designed for installation on a surface smaller than 1 m², in less than 1 hour, while simultaneously reducing energy consumption and maintenance costs by up to 30%. The Onebox can be installed not only inside the building but also on the exterior by attaching it to the building.
Each Onebox is assembled through prefabrication off-site with engineering precision under constant conditions according to detailed project documentation. All components used are carefully selected and tested. Before delivery, pressure tests are performed and concluded with an output protocol.
Each Onebox is delivered in a plug-and-play state, thanks to the use of flexible hoses. Connection and commissioning take less than an hour.
The system includes four main technologies connected into one smart unit:
Air-to-air heat pump with hot water heating
It takes care of heating and cooling the house, as well as heating domestic hot water (DHW). The air-to-air heat pump with an integrated 90-120L boiler is the most energy-efficient solution that utilizes a renewable energy source – the surrounding air.
It provides year-round comfort benefits, heating in winter and cooling in summer. Due to its fast response to temperature changes and simple installation, it is ideal for low-energy and passive houses where efficient and flexible heating and cooling are required.
Recovery unit
Ensures consistent air quality inside the building. The air handling recovery unit works reliably with a space-saving rotary heat exchanger.
It ensures the supply of fresh air, removes allergens and other contaminants, and maintains ideal humidity levels in the house. Additionally, with heat recovery, it reduces heat loss in the winter, leading to further energy savings.
Photovoltaic power plant with optional battery storage
It provides energy from the sun for the building's primary consumption – operational water heating in the boiler, cooling, heating, and ventilation. On sunny days from April to October, it covers 95% of the house's consumption, ensuring efficient operation of the entire household.
To increase energy self-sufficiency, the system stores surplus energy in a battery storage system, allowing the use of generated energy even when the sun isn't shining. This also serves as a backup system in case of power outages. The system also supports electric vehicle charging, further expanding the household's energy autonomy.
Distribution system with independent regulation for each room
The system ensures comfort by distributing very low-pressure air through ducts installed in the ceiling, ceiling void, or attic. Supply and exhaust air ducts are brought into each room.
Control dampers are installed on all branches of the distribution unit, and temperature sensors are placed in each room, which can be expanded to include CO2 and relative humidity sensors. This allows the climate in each room to be individually optimized for both summer and winter periods.
size of the box |
building area |
number of people |
bathrooms |
heat pump output |
PV |
|
onebox_S |
up to 1 m2 |
up to 80 m2 |
2 |
1 |
3,5kW |
5 kW |
onebox_M |
up to 1,5 m2 |
up to 150 m2 |
4 |
1 |
5,0kW |
8 kW |
onebox_L |
up to 2,5 m2 |
up to 200 m2 |
6 |
2 |
6,0kW |
10 kW |
onebox_X |
up to x m2 |
xxx m2 |
xxx |
xxx |
xxx kW |
xxx kW |
How does the system work?
Controlled ventilation ensures a continuous supply of fresh and clean air throughout the day with various schedules. This allows windows to remain closed, preventing noise from the street and bothersome insects from entering the interior. Comfort ventilation not only exhausts stale air but also removes harmful substances that may be emitted from furniture. Humidity regulation reduces the risk of mold growth on walls and furnishings.
Ventilation systems with heat recovery utilize residual heat from the stale air to warm up the fresh incoming outdoor air, saving energy and costs during the heating season.
Intelligent control and expansion to a smart home
Technologies are integrated into a unified control system via the NEXTRA app. This app allows not only temperature regulation, water heating control, and monitoring of electricity production and consumption but also offers the possibility of expanding to a full-fledged smart building or Smart Home – including lighting, shading, CCTV – camera systems, or security systems – through a single interface.
Contact
+420 776 331 310
FAIRAIR CZ s.r.o. | Slovácká 678, 691 53 Tvrdonice | CZECH REPUBLIC
IČO: 092 47 866 | DIČ: CZ09247866
zapsaná v obchodním rejstříku vedeném u Krajského soudu v Brně, oddíl C, vložka 136330;
zastoupená: Zdeňkem Balgou, MBA, jednatelem
Bankovní spojení:
Raiffeisen Bank 2313470002/5500
IBAN: CZ7055000000002313470002 | BIC/SWIFT: RZBCCZPP
FAIRAIR CZ s.r.o. is part of
FAIRTECO Holding SE
FAIRTECO Holding SE | Meet the fair future!
At FAIRTECO, we create an ecosystem aimed at providing a pleasant and comfortable work environment while ensuring climate neutrality, reducing the carbon footprint, and decreasing the energy demand of buildings.
We bring technologies, products, and solutions into people's lives that meet the demands for extra-long lifespan, nearly zero maintenance, and a fair price. Our comprehensive approach has three levels that customers can use individually:
We conduct an energy audit, assess potential savings, and propose measures.
We deploy a software tool that immediately starts generating savings at the level of 37+%.
We supply a system technology that reduces operating costs for cooling, ventilation, and heating by up to 80% compared to conventional HVAC systems.
We manufacture lightweight, steel, precision-engineered prefabricated panels that can carry thermal insulation, photovoltaic panels, or a green facade.
And that's FAIR!
NEXTRA systems s.r.o. | Modular software solutions for energy management, digitization, and automation of Industry 4.0, smart buildings, smart cities, and distributed energy.
By connecting technologies, we help streamline operations and optimally use energy resources. This ensures cost and carbon footprint reduction, compliance with ESG requirements, ISO 50001 certification, or improvement of building energy labels (PENB).
FAIRAIR CZ s.r.o. | Decentralized energy-saving ecological ventilation systems and modular HVAC
We create pleasant and comfortable work environments that ensure machine reliability and employee satisfaction in industrial and commercial buildings. We design and supply systems for heat and smoke extraction, natural ventilation, cooling, air humidification, and heating cost savings through destratification.
MONTART s.r.o. | 3D-printed structural system of steel frames, insulation panels, and truss girders
This system enables modern, fast, and precise prefabricated construction of mid-rise buildings, family homes, warehouses, commercial and industrial buildings, modular structures, and facade insulation modules. The flexibility of design and construction saves implementation time and ensures construction quality with engineering precision.