For a long time, house ventilation was a natural process. It happened with the help of the airflow that passed through the gaps of the windows or aeration. The air intake was carried out through ventilation ducts. However, nowadays there are issues with this process caused by noise, dust, and other pollution that pass with the air through an open window. Moreover, in the wintertime, cold wind enters the living space causing not only discomfort but also additional load on the heating system. A similar situation happens in summer – hot air coming from the street loads an air conditioning system and causes additional financial charges.
Construction trends are now focused on low energy consumption. With utility prices rising steadily, people are trying to make their homes as energy efficient as possible to reduce heating or cooling costs. One of the main aspects that must be taken into account is the heat loss of the room. It depends on the quality and the amount of glass-covered area, the insulation of the apartment, wall thickness, etc. This factor also depends on the ventilation in the apartment.
Modern ventilation systems can not only ensure proper airflow in the house, remove excess moisture and unwanted odors, but also help to save on heating. For this reason, it is necessary to choose ventilation equipment with a recuperator. Why is a recuperator necessary? Because without it, the ventilation equipment lowers the temperature of the exhaust air and blows cold air which must be heated again. Heat recuperators are installed to avoid such unjustified financial waste.
High-quality airflow in accordance with norms
Ventilation ensures high-quality airflow in the room: air supply to living areas, exhaust intake from “industrial” areas.
Heat reuse saves costs
Recuperation retains the heat of the taken air and transfers it to the supplied air, reducing energy consumption for heating.
Two-way air purification – in the room and before recuperator
The ventilation system ensures the supply of clean air without unwanted bacteria and allergens. Most air handling units are equipped with F7 class fine filters. To ensure the long-term operation of the recuperator and prevent clogging, a coarser filter of class G4 is also installed for the exhaust air.
The moisture in the room is recovered in the heat exchanger
When using an enthalpy recuperator, the ventilation system can retain not only heat but also moisture in the room.
There are two approaches to achieve perfect air quality
We use 2 approaches for ventilation design: calculation based on the number of people and calculation based on air quality
Recuperation is the return of energy for reuse. In the context of the ventilation system, recuperation is the reuse of heat, which is taken from the intake air and transferred to the supplied air. This process is made with a heat exchanger so-called recuperator.
Below we will explain in further detail what a recuperator is, its types, and operation basics.
The best method of heat (and moist) recuperation is through the ventilation system. There are several options available depending on the budget, renovation stage, and operation.
Below we describe the air handling units with heat recuperation, their operation method, and how to choose the necessary equipment for your home (more information is available in the pop-up):
Of course, it is problematic to install a full-fledged centralized supply and exhaust ventilation system when house renovation is complete, since the installation of the air ducts will require repair work.
A decentralized ventilation system based on Meltem, Zehnder, Maico, Mitsubishi Electric, Soler & Palau units is an optimal solution when the renovation work is complete, but creating a healthy microclimate with air recuperation in the apartment is necessary.
Heat recuperation ventilation system with a Maico – PushPull device
The supply and exhaust devices with Maico - PushPull heat recuperator with exhaust fans for the bathroom (usually installed in the kitchen and bathroom) - are an optimal solution when renovation work is complete but creating a healthy microclimate with air recuperation is necessary. As a standard, these devices operate in pairs (two units are located in adjacent rooms): one of them is for air supply, and the second is for air discharge, after a certain time they swap functionality. When the exhaust fan starts working in the bathroom or the kitchen, the air handling units begin to operate on the inflow method, compensating for the reclaimed air volume. Air movement around the apartment is performed using a non-threshold system.
Each unit is wall-mounted and has a maximum capacity of 45 m3/h, which is optimal for two people staying in the room. The built-in heat recuperator with an efficiency of 84% allows to create an optimal air exchange process and save costs on additional heating of the rooms.
The price ventilation system with recuperation depends on the factors listed below:
Therefore, it is possible to calculate the exact cost of ventilation only after the design is complete.
The selection of equipment depends on the chosen ventilation system: decentralized or centralized. For decentralized ventilation, it is recommended to use equipment from the following manufacturers: Meltem, Zehnder, Maico, Mitsubishi Electriс.
An air recuperation system is needed at any time of the year, but it will operate more efficiently in winter due to the difference between the temperature outside and inside the house. Ventilation with a heat recuperator will keep the home warm and reduce the load on the heating system.
Where should the recuperation ventilation system be located?
Heat recuperation ventilation units can be installed vertically and horizontally. Vertical installation involves placing equipment in the technical rooms of the house or integrating it into furniture, for example, in wardrobes.
Horizontal installation involves placing equipment under the ceiling. The disadvantage of the horizontal installation is the complexity of equipment installation in technical rooms. Most often, technical rooms have a small area, therefore it is difficult to properly organize the installation of air ducts within such space. It is impossible to sharply curve the air duct, since this will lead to high noise during air circulation.
The air ventilation is becoming more and more necessary while the modern apartments’ tightness increases. Opening windows cannot provide high-quality ventilation, therefore centralized or decentralized ventilation systems are becoming more demanded. Centralized ventilation systems with heat recuperators are practical engineering solution for houses and apartments. A recuperator for an apartment or a house is selected depending on the system, in most cases, it is integrated directly into the ventilation unit. The return of 90% or more of heat energy together with the supply air reduces the load of the heating system during the cold season. Based on this, air recuperation does not cool the air at home, but retains most of the heat inside it. At the same time, the operation of the air handling unit guarantees a fresh and healthy microclimate in a house. Such a system is cost-efficient but it does not compromise the quality of air exchange in the room in any.
Air handling units are manufactured with different types of recuperators. Each has a number of advantages, but the most popular are the highly efficient plate-type recuperators. They are designed to transfer as much heat as possible from the exhaust air.
Ventilation with recuperation is a combination of energy-efficient and high-quality air exchange.
Alter Air provides a high-quality consultation on choosing and purchasing a recuperator. Our engineers will advise you on installing recuperation in an apartment or house.
Please call 0-800-33-08-28 or leave a request on the website for a consultation.
Double-slot diffusers from the TROX brand are designed for high-quality air distribution throughout the room. They combine visual aesthetics and high technical potential. Air currents are given in different directions, evenly scattering and avoiding any drafts. Outwardly, only laconic lines on the ceiling remain visible.
A low-pressure internal duct unit Daikin FDXM 35F is installed in the ceiling space of the bathroom - it works to cool the bedroom. It is accessed through hatches. The capacity of the air conditioner is enough to service rooms up to 35 m2, which is optimal for a given room. The lowering of the ceiling in a technical room was 300 mm.
Vertical indirect heating boiler Drazice OKSE 200 l is designed to provide apartment residents with hot water. The inner surface of the tank is covered with high-quality enamel without nickel, which ensures a long operation of the water heater, and there is also an anti-corrosion coating. The temperature inside can be kept between 7 and 77 ℃. The water heating indicator always shows the current temperature on the front of the tank. There is a fast heating function. This is an excellent solution for an apartment, allowing you not to depend on seasonal blackouts and other inconveniences.
Electric boiler Vaillant Ecoblock An electric boiler Vaillant Ecoblock with a capacity of 6 kW and efficiency of up to 99% works for heating and hot water supply of the entire apartment. It has a wide range of temperature settings for both heating and hot water supply. There are frost protection and 2-level overheating protection. Equipped with eBus data transmission technology. With the help of a capillary thermostat, residents can smoothly regulate the heating temperature in the range from 25 to 85 ℃
The Zilmet expansion tank is designed to compensate extra pressure in the heating system. Works in conjunction with the Vaillant electric boiler above. The special inner lining of the tank prevents the growth of any bacteria, that is, the water does not acquire a metallic taste, does not stagnate or change its properties.
A modern system for filtering and softening water: cleans water from all kinds of impurities and odors, neutralizes iron, making it soft, pleasant and safe for household appliances, water pipes and human use. The purified water is also suitable for drinking directly from the tap. The refiner does not require changing the carbon filters, and is controlled via WiFi - maximum automation and comfort!
The Jablotron Futura L ventilation unit with heat and moisture recovery ensures high-quality air exchange at the apartment, and also reduces the load on the heating system in the cold season. Thanks to the Alfa wall controller and the MyJablotron mobile app it is easy to operate the unit.
Flexible air ducts Airflex have a high degree of plasticity, which allows air to be supplied even to hard-to-reach areas. Moreover, they are covered with a layer of thermal insulation, which prevents heat loss and absorbs noise characteristics during the operation of the ventilation unit.
The Daikin duct air conditioner provides efficient room cooling. The FBA series has a rather thin body, which makes it easy to place in a ceiling space. The self-diagnosis function ensures a safe operation of the device and indicates problems if any occur.
The ventilation system with recuperation is calculated and selected based on the individual needs of the client therefore this stage is mandatory. During the first meeting, the client will receive an explanation of the system options, their functionality, and their cost specifically based on the needs of their house or apartment. Experts will answer all questions and show the systems installed in the office in operation.
The stage that precedes the project design and includes the development of documents that allows to accurately estimate the needs and capabilities of the site, and also provides a cost estimate of the future system. The pre-design documentation includes: • calculations for the required amount of air (individually for the site); • commercial offer in 3 versions that includes the cost of equipment and installation of an air duct system. The cost of the system may change in the process, but within no more than 15%
A complete project design follows after the approval of the desired version of the system. Complete project design includes: • a package of drawings with plans and sections; • specifications of the ventilation system; • assignments for related specialists (if necessary); • feasibility study for the choice of equipment; An advance payment of 10% of the project cost is a prerequisite for starting the project design.
Alter Air is a company that ensures that the delivery of all components, equipment, and its installation is done by our specialists. A significant advantage of using our company’s services is that our installation teams specialize in climate control systems and know all the nuances of installing a ventilation system. Of course, our company takes full responsibility for the performance and result of the installation work of the ventilation system. After the installation is complete, the system is configured tested and the result is presented to the client.
The Alter Air service engineer continues to monitor and support the site even after the system has been commissioned. Our engineer will tell when the filters should be replaced and schedule maintenance of the ventilation system. In case of malfunctions, our engineer will schedule a visit to solve such an issue as soon as possible. Modern ventilation equipment allows to diagnose problems and configure work remotely, so in most cases, the solution to the problem can be immediate and without the need for a visit from our specialists.
We solve the problem of microclimate in a house, starting from ventilation, air conditioning, heating and ending with humidification and air purification. We make sure that all systems interact productively with each other and at the same time do not consume a lot of energy in order to save your costs. In our work, we are like a family doctor - we treat your home, analyze a problem, offer solutions to it, and not just sell pills like a pharmacist in a pharmacy.
We chose Alter Air to bring our cool engineering project to build our own home. Now the following systems are installed in the house: heating with a heat pump, underfloor heating, supply and exhaust ventilation with heat recovery, which allows you to keep moisture and easily breathe fresh clean air. The house maintains an excellent temperature of + 22 ° C - no stuffiness and dust. Everything is magical!
I looked at several companies on the Internet and settled on the Alter Air company. After talking with their specialists, I realized that people are very well versed in their business. They sensibly explained how to implement home heating and ventilation correctly and with minimal cost. During my stay in a new house, I have already experienced the operation of these systems, and especially the ease of control. The temperature in the house is comfortable and kept at a given level. The ventilation works inaudibly, but noticeably - with the windows closed in the morning it breathes freely and easily, there is no dust. I am very pleased with the work of Alter Air and I will recommend you as a good performer who does quality work!
We are happy to jointly conduct projects with organizations and self-employed specialists, recommend you to our clients and help with the outsourced engineering part. Additionally, we invite you to attend seminars of the "Engineering in Design" series, where we show by examples how to correctly implement engineering systems in the interiors of end customers.Become a partner
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