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AIR TO WATER HEAT PUMP – AN INDEPENDENT SOURCE OF HEATING AND COOLING OR AS A HYBRID COMBINATION WITH AN EXISTING BOILER?

by Guide
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AIR TO WATER HEAT PUMP – AN INDEPENDENT SOURCE OF HEATING AND COOLING OR AS A HYBRID COMBINATION WITH AN EXISTING BOILER?

Nowadays, we pay more and more attention to choosing the right and efficient source of heat in the house. The ever-increasing costs of buying traditional fuels and the ever growing pace of life make us look for devices, which will not only heat or cool the building for a cheap price, but also help reduce the time spent on their operation to a minimum. The obvious attribute of the new heat sources is also the price and the payback time of the investment, when compared to the cheap traditional solid fuel boilers.

We shall analyse different configurations of heat pump applications, depending on the phase an investment is at, when the decision is made: whether it is at the design or shell stage, or at the operation stage (when the building is already occupied), in order to offer a practical picture of the profitability of investing in new heat sources.

Design stage – air to water heat pumps

If the decision to choose a heating method is made, while the investment is still in the project phase, then the best solution seems to be using air to water heat pumps, taking into account the ever lower heat demand of modern buildings per 1 m2 and the increasingly attractive costs of investment. Unlike ground-source pumps, air to water pumps do not require any significant interference with the structure of a plot of land.

In the case of single-family houses with a floor area of less than 150 m2, occupied by a family of four, an 8 kW heat pump will be sufficient for the majority of applications. It will provide both thermal comfort and hot tap water for the household. It is worth noting that the investment cost regarding such a pump can be as much as half the cost of a ground-source pump! More than that, when it comes to operation, the costs of an air water pump can (but not necessarily) be only slightly higher.

If a building has a higher than average demand for heating power, for example resulting from its specific purpose, in order to provide more hot tap water, it is sufficient to use a 10 kW, 12 kW or 14 kW model, categorised under the same product class, which can easily meet the increased demand.

Practically every one of the offered heat pumps features modulated heating power and is equipped with an additional peak heat source, e.g. in the form of a 6 kW electric heater.

Remember that the use of a heat pump first and foremost provides the users with great comfort, because they do not need to worry about purchasing fuel, about the compulsory cleaning of the burner, or about storing extra fuel. Savings will materialise as early as at the stage of erecting the house. An air heat pump, combined with a domestic hot water tank, occupies less than 1 m2 of the building’s space, and it also more and more often features an aesthetic design, so there will be no need to build a large boiler room. The “saved” space can simply be used for residential purposes, or help reduce the cost of erecting the building, if we give up on the idea of having a boiler room and design a smaller house. 

If a building is equipped with a heat pump, there is also no need to have an expensive smoke chimney. This way, we will also avoid the expenses related to running a gas connection or erecting a container for gas, oil, or keeping a storage for solid fuel, in our house. Investing in an air heat pump will also help reduce the cost of maintaining thermal comfort when using an underfloor heating system.

An existing building – hybrid boiler plants

The example described above pertains to a model application of a heat pump in a modern, newly erected building. However, what would we do, if we wanted to improve the comfort of living and reduce heating bills in an already existing house, in which nobody had thought about a heat pump at the design stage?

The basic question is: what is the real demand for heating power in the particular building and can we reduce it? In some cases, before we start replacing a central heating system, it will be necessary to carry out thermal modernisation of the building (changing window frames, insulating walls, ceilings, etc.). Such actions will not only reduce the building’s heat demand, but they will directly translate into reduced heating bills and also allow for a real adjustment of the required power for the heating equipment. When modernising a heating system, we can, for example, buy a heat pump with less power demand than the furnace we have used so far. This will translate, firstly, into lower investment costs, and secondly, into lower operating costs.

However, there are investments, where a complete change of an entire heating source to a heat pump is not cost-effective, because of high investment costs resulting, for example, from difficulties in adapting the building. If that is the case, we can consider a hybrid boiler house, i.e. installing an air to water heat pump, in combination with the existing heat source. Such a solution will reduce the operating costs and offer environmental advantages.

In this variant, our analysis concerns a house built 30 years ago, with a total area of 300 m2, equipped with an oil boiler, which can often have a heating power demand exceeding 20 kW, at a design temperature of -20°C. During the colder winter season, oil consumption can be as high as 4500 l/year. A 14 kW heat pump should meet 100% of the building’s energy demand, with the outside temperature falling down to about 0°C. When using a hybrid boiler house below this temperature threshold, an oil boiler can be activated as an auxiliary source of heat, for example.

However, we should bear in mind that the latest temperature measurements in the climatic zone III indicate that the outdoor temperature falls below 0°C for only about 1,500 hours a year, which amounts to 17%. For the overwhelming majority of the year, the only source of heating for both the building and hot tap water will therefore be a heat pump, which is much cheaper to operate and eco-friendly.

Combining an oil, gas, or eco-pea coal boiler with a heat pump can significantly reduce your annual heating bills and simply increase your comfort, if solid fuel boilers are used.

Let us remember that there are a number of factors influencing a particular investment and the operating costs generated by heat pumps. We must take into account not only the demand for heating power, but also the delivery temperature of a heating system. The lower it is, the cheaper it is to operate a heat pump. The actual amount of hot tap water consumed and, for example, connecting the entire system to an existing fireplace with a water jacket, or to solar collectors, can also have an additional impact on the profitability of the investment. The correct connection of such a system and potential modernisation of the building’s heating system is crucial for the whole system to operate efficiently and cheaply.

Summary

The use of an air to water heat pump for heating up buildings and hot water is a good solution, both when the investment has only reached the design phase and when the buildings already exist. In both cases, this will significantly reduce the operating costs and can prove profitable for new projects, from the investment perspective. Hybrid systems can be offered as an advantageous solution for modernising the heating system, in terms of economy, ecology, and comfort for the user.

Discover the KAISAI ECO HOME heat pumps – a green heat source for both single-family, multi-family, and commercial buildings.

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AIR-TO-WATER HEAT PUMP FOR CENTRAL HEATING AND USABLE WARM WATER

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AIR-TO-WATER HEAT PUMP FOR CENTRAL HEATING AND USABLE WARM WATER

An air-heat pump operates according to the similar principle as air-conditioning systems or refrigerators. Each of these devices features three circuits. 1) A lower source – i.e. from where the pump absorbs heat, 2) A cooling circuit – i.e. a set of elements and devices, thanks to which heat is transferred from the lower source to the upper source,  and 3) An upper source – a heating system, e.g. radiators, underfloor heating, usable warm water.

The air-to-water heat pump’s principle of operation is very simple, and is based on 3 physical phenomena commonly occurring in everyday life: evaporation, compression, and condensation. During the process of evaporation (the evaporator), the refrigerant draws heat from the surroundings – in this case, the outside air. Please note that refrigerants are capable of evaporating at very-low temperatures (even at -20°C). After evaporation, the refrigerant has accumulated energy,
but the temperature of gas is too low to transfer this energy directly to the heating system.

The temperature of the gas in the cooling system must be raised in order to heat the building efficiently. The heat pump’s compressor is used for this purpose. During compression, the pressure and temperature of the gas increase.

Under high pressure and at high temperatures, the gas travels to a condenser (condensation), where heat is transferred to the heating system. Then, an expansion valve reduces the pressure of the condensed refrigerant, while the appropriate amount of refrigerant is supplied to the evaporator, and then the whole process is repeated.

 

The process behind the operation of air-to-water heat pumps means that up to 75-80% of the heat entering the heating system is free of charge, as it is obtained from the outside air. The remaining 20-25% is the electricity needed mainly for the compressor and the circulation pumps of the heating system.

How much current does an air-to-water heat pump draw / consume?

The energy consumption of a heat pump depends on many factors, the most important of which include the real heat demand of the building, the temperature of the heating system, the amount of usable warm water used, the outside temperature, and the correct installation of the entire heating system.

Let’s make the following assumptions:

  • the usable area of the house is about 150m2,
  • the temperature in the building is 21°C,
  • the house is inhabited by 4 people,
  • underfloor heating is installed,
  • and the building is constructed using modern heating technology (50W/m2).

Depending on the climatic zone, the heat pump, together with the peak heat source, should draw about 5000÷5500kWh from the mains. If the price of 1kWh of electricity is 0.56 PLN, then the annual cost of heating of both your house and the usable warm water should not exceed about 3,000 PLN. It should be remembered that this amount can be significantly reduced by improving the thermal insulation of a building, using a cheaper energy tariff, or by installing a photovoltaic system.

Selecting an air-to-water heat pump

It is essential that the heat pump is correctly matched to the specific system and user preferences. The basis for selecting the model (power) of a pump is to know the building’s demand for the effective energy or power at the design temperature (e.g. -20°C), and the amount of usable warm water. However, that is not all you need to ensure you select the correct pump.

The following parameters should be taken into account:

  • the temperature of the heating system,
  • the temperature you wish to have in your home,
  • having zone control in the rooms,
  • the size of the sable warm-water consumers, e.g. a large shower head,
  • and the needs regarding heating, and, possibly, cooling, in a building.

It is very important to specify the aforementioned details in order to select the correct heat pump and enjoy the comfort of a home-heating system, and low heating bills.

Become familiar with the KAISAI ECO HOME heat pumps, which can both heat or cool your home and provide usable warm water.

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SOME REASONS TO INSTALL AN AIR CONDITIONER

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SOME REASONS TO INSTALL AN AIR CONDITIONER

A few years ago, air-conditioning units were installed mainly in commercial facilities, such as banks, offices, and shopping malls. Today, air-conditioning units are affordable for individual users. So, isn’t it worth installing it in your house or apartment, and having in mind energy-efficient cooling during the summer and heating during the transition period?

Meteorological data are an undeniable source of information on global warming, while average air temperatures are rising each year. The prevailing trends in building architecture are leading to the use of more and more glazing to brighten the interiors of apartments. All of this is leading to the indoor air temperature’s often exceeding 30°C during the summer, which makes this time of the year a burden to the normal functioning of our body. So, why not try a bit of luxury by installing an air conditioner, which will put an end to the nightmare of hot summer nights? The cost  of air-conditioning equipment has relatively fallen in recent years, and their operation has become inexpensive, thanks to modern energy-saving technologies. One of the arguments in favour of buying an air conditioner is probably the fact that it can be an economical way of heating and dehumidifying rooms during the spring and autumn.

It is worth adding that more and more manufacturers of air-conditioning systems  are introducing multifunctional solutions at ever-lower prices. Air conditioners are often equipped with a wireless remote control, by means of which you can set a convenient mode of operation, speed, and direction of airflow, and program the time of switching the unit on and off.

Some of the interesting novelties on the Polish market include units featuring a WiFi function, thanks to which you can operate an air-conditioning system with
a smartphone or a tablet, which further increases the comfort of using an air-conditioning system at home.

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TYPES OF AIR-CONDITIONING UNITS

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TYPES OF AIR-CONDITIONING UNITS

The categorisation of air-conditioning units is governed by criteria we have identified. Air-conditioning systems can be divided in terms of the mode of consuming energy, the number of outdoor units, portability, and the mode of operation.

 

As far as the classification based on the MODE OF ENERGY CONSUMPTION goes, the following can be cited.

  • Direct evaporative air-conditioning systems, in which the cooling of a room results from absorbing the energy from the room directly by the evaporating refrigerant. The units used in such a system are small, quiet, and inexpensive, but they cannot be installed everywhere.
  • Ice-water systems, in which heat from rooms is collected by water,
    which transfers heat to the evaporating refrigerant. The units used in these systems are larger and more expensive, but they can be used in virtually
    any conditions, e.g. in tall buildings.
 

Another criterion for the division of air-conditioning systems is the NUMBER OF OUTDOOR UNITS. Direct evaporative air-conditioning systems feature the following types.

  • Mono units – devices consisting of a single module, mounted in a window,
    on a wall, or on wheeled equipment with a special pipe going out of the window. Mono units are low-power devices designed for small rooms.
  • Split-type air conditioners – these are units comprised of two modules:
    an outdoor unit and an internal unit connected by a copper pipework
    and an electrical system. SPLIT units are low- and medium-power units designed for providing air conditioning in small and medium-sized rooms.
  • MULTI-Split-type air conditioners – units consisting of several indoor elements (up to 5), connected to a single outdoor unit through copper pipework
    and an electrical system. MULTI-SPLIT units are medium-power systems designed for providing air conditioning in large rooms or in a number of small rooms.
  • VRF systems – the most-extensive direct evaporative air-conditioning system, with which up to 3 units can be connected to a several-dozen outdoor units
    (up to 64). VRF systems are medium- and high-power air conditioning systems designed for providing air conditioning in entire buildings.
 

Depending on their PORTABILITY, we distinguish the following types of device.

  • Stationary air conditioners – a typical solution used in most buildings, where it is possible to install air conditioning permanently.
  • Portable air conditioners – these are usually fitted with castors, which makes them ideal for rooms under low- and medium-heat loads, especially if there is
    a need to relocate the air conditioner, or when stationary air conditioning cannot be used.
 

Taking into account the MODE OF OPERATION, we distinguish the following types of air conditioner.

  • Inverter air conditioners – these constitute a state-of-the-art unit designed
    for rooms with variable heat loads, and an extremely energy-efficient solution.
  • ON-OFF air conditioners – these are characterised by simple design and uncomplicated control. It is an efficient solution suitable for rooms which require high and constant cooling or heating capacity.
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THE R290 REFRIGERANT

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THE R290 REFRIGERANT

The R290 refrigerant is known under the common name of propane. It is a colourless, odourless, organic, compound, which belongs to the group of saturated hydrocarbons naturally occurring in natural-gas deposits. Propane is an agent distinguishable by its minimum impact on the environment and safety of use, thanks to its high flammability limit.

Air-conditioning units take advantage of the physical properties of refrigerants to transfer heat, and, consequently, to cool down or heat up rooms. The portable air conditioners from KAISAI use the modern and environmentally-friendly R290 refrigerant – propane. Propane-based devices have been successfully distributed in many countries of the European Union for many years. The popularity of the R290 refrigerant is constantly increasing, due to its low environmental impact, while maintaining very-good thermodynamic properties. R290 has a zero ODP value, which means that there is no negative impact on the ozone layer, and an extremely low GWP value, which indicates a minimal impact on the global-warming effect. This makes propane is an environmentally friendly agent, at the same time maintaining good working parameters in air-conditioning units.

It is worth noting that R290 is not the popular propane-butane mixture used in LPG systems, and the agent itself is a lot safer to use. Propane is a combustible gas, and its flammability limit is 2.1% by volume in the air. Compared to a propane-butane mixture, it is up to 40% higher, which makes R290 much safer to use. This also means that propane is safe to use even in confined spaces, thanks to the fact that Kaisai units use only 230g of the R290 agent, and their special fireproof protection. It is not possible to obtain a sufficient propane concentration in the air to ignite in rooms with an area of more than 4m², assuming an average air density of 1.2kg/m³ and a room height of 3m. However, it is recommended to increase this safety margin – so do not use mobile air conditioning in rooms with a total area below 12m², in accordance with EU requirements.

R290 has a low sensitivity to moisture, and does not cause corrosion, so it can work in refrigeration systems equipped with both hermetic and semi-hermetic compressor units. This prolongs the service life of the equipment and allows it to be used indoors, throughout the year.

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SMART AC – WIFI

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SMART AC – WIFI

Smart AC is a WiFi module added as standard to all models of wall-mounted air conditioners from KAISAI. Thanks to its application, the user is able to control the device through the app installed on a tablet or a smartphone, even when away from home or office.

By using the WiFi function, the user has the facility to turn the device on or off, and change the temperature and selected operating functions, from virtually any place in the world where the Internet is available. Control via WiFi allows you to save electricity and increase the comfort of use. When coming back from work, you can activate the air conditioner a moment before arriving at the door, to reach the right temperature; this way, the unit does not have to work during your absence.

With wall-mounted air conditioners from KAISAI, the WIFI module is included in the price, and no additional costs are incurred. Installing the module is simple, and requires no special tools.

The WIFI module is located in a special port located under the front panel of the air conditioner’s indoor unit. The next step is downloading and installing the app on your mobile device, and then configuring it to work with the air conditioner. The app dedicated to the module is available for free downloading from the Internet, for both Android and iOS. It is described in detail in the manual attached to the air conditioner, in the section discussing the Smart AC module.

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SPLIT A/C UNITS

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SPLIT A/C UNITS

Home air conditioning is no longer a luxury available only to the richest! It’s a solution which anyone can afford, and it’s a big advantage. Air conditioning provides comfort not only on hot days. It allows you to freely control the temperature in your home, apartment, office, or small retail outlet, replacing or supplementing the heating system. However, the advantages of an air-conditioning system do not stop there, because its installation proves to be a great way to take care of your health, and that of all users. Modern air conditioners eliminate diseases caused by bacteria and fungi in the air.

In addition, the comfort of staying in an air-conditioned room is further increased by the facility to lower the humidity level in the air, and clean the air. This is particularly useful in winter, when the temperature outside does not encourage you to open windows. If you want to fully enjoy the comfort of the air, it is worth choosing your air conditioner carefully, by finding the one suitable for your apartment, house, office, small shop, or other small retail outlet. You can choose between two primary solutions – a portable air conditioner and a split-type air conditioner. The first model is lower priced, and easier to install, but the daily operation of a mobile air conditioner can have its limitations. In this situation, it is worth considering split air conditioning, which provides a high level of air comfort.

The split-type air conditioner

Split-type air conditioning is quiet, efficient, and has low power consumption. It is also the best solution for those who cherish aesthetic values. The variety of the available models means that you can easily find an air conditioner to suit virtually any interior. What is worth knowing about this solution? How do you choose the right air conditioner of this type?

How does it work?

Split-type air conditioners are comprised of two units – an outdoor module, which is mounted on the façade of a building, and an indoor element installed in the air-conditioned room.

The advantage afforded by this solution is that all noise-generating components are installed in the outdoor unit. Indoor units contain only silent devices, which significantly improves the comfort of those present in the room.

Types of unit

Split-type air conditioners can be easily adapted to the interior design in various rooms. See below for a selection of units sold by KAISAI.

  • Wall-mounted – as the name itself suggests, they are fixed to walls. These units feature discreet and minimalistic designs, and will work well both in modern interiors and in apartments decorated with respect for the traditions of interior design. Their advantage is a relatively simple assembly, which does not require modifying the interior in any way.
  • Cassette – this is a solution for owners of apartments and offices with suspended ceilings. The advantage they give is virtually zero interference with the room’s interior design, with the only visible element being a grille with a decorative casing placed between the ceiling tiles.
  • Convertible (or general purpose) – their design allows them to be fixed to the ceiling, on the floor, or in one of two positions, in the case of the general-purpose units.
  • Duct – these indoor units are concealed in suspended ceilings, and the user will only see the inlet and outlet grilles.


 In terms of performance and functionality, both the above solutions are fairly similar. The differences lie in their aesthetics and assembly technology, and these are issues which should determine your choice of the type of indoor unit. It is more common for houses and apartments to choose wall-mounted air conditioners. However, if you are looking for an efficient system for your office, shop, service outlet, or warehouse, then choosing from cassette, general-purpose, or duct air-conditioning systems would be a better solution.

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AIR CONDITIONING FOR HOME AND APARTMENT – WHAT KIND OF HOME AIR CONDITIONER SHOULD YOU CHOOSE?

by Guide
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AIR CONDITIONING FOR HOME AND APARTMENT – WHAT KIND OF HOME AIR CONDITIONER SHOULD YOU CHOOSE?

From March to September, the days are longer, and temperatures get higher.  There are periods of several weeks of heat, especially from June to August, which makes it difficult for us to function normally, whether at your house or in an apartment. It is worth thinking about this beforehand, and providing yourself with an ideal  and  comfortable temperature, whatever of the season and time of day.

 

Nowadays, home air conditioning is a one-hundred-percent-efficient solution to prepare for the hot season. This solution, which until recently was still a luxury available only to the few, today is actually accessible to everyone.  A growing number of people are taking advantage of the benefits of home air conditioning; for example those who are having detached houses built. There are many types of air conditioner on the market, but two of them are particularly suitable for home use. Find out more about these, and opt for the solution which works best for your apartment.

 

Split-type A/C units

In Poland, air conditioners of this type are becoming more and more frequent enhancement`s in apartments and detached houses. They stand out for their high efficiency and rather-simple design. They are comprised of two units: external (where all the noise-generating components are installed), and internal. The first is installed outside the building, the second inside the room, where it can comfortably fit in with the interior design of the particular space. This is facilitated by the variety of air conditioners available:

  • Wall-mounted – this is the most-popular and lowest-priced solution. Units of this type are small in size and ideal for small interiors. 
  • Ceiling, floor-standing, or convertible (also referred to as general purpose) – their designs allow them to be mounted on the ceiling, on the floor, or in one of two positions, in the case of the general purpose units. 
  • Cassette – a solution dedicated to rooms with a suspended ceiling. They feature virtually zero interference with the room’s interior design, as the indoor unit is discreetly integrated into the ceiling tiles.
  • Duct – these indoor units are concealed inside a suspended ceiling, and the user will only see the inlet and outlet grilles. 


 
Home air conditioning based on the split-type system will be a good choice, primarily for:

  • Quiet work – the sound-pressure level of the wall-mounted indoor unit ranges from 25 to 43 decibels, which means that a working home air conditioner does not distract or make people in the room stressed.
  • Ease of use – air-conditioning systems are controlled by a remote control; if you select the correct outdoor unit, you can use it to connect 2-5 indoor units
    with different capacities, matching the system to the number and volume
    of rooms.

When installing split-type home air conditioners, you must take into account the need to obtain the appropriate permit and installation method. What’s worth knowing:

  • Installation – this requires the involvement of a professional team, which has an impact on the budget and expenditures related to the investment, which can go up by as much as 1,000 PLN.
  • Permits – this applies only to the owners of apartments in multi-family buildings. When making a decision to install such a system, you have to obtain a permit from the building’s manager or administrator, and that can prove to be impossible in certain situations.

 

Portable air conditioners

Portable air conditioners are an excellent alternative to split-type air conditioners. They will work well in smaller rooms (up to 30 square metres) and under low heat loads. Their main advantages include:

  • Low price – when compared to the prices of other types of air-conditioning units and the cost of their installation (no specialist required).
  • Easy to install – it all comes down to fitting a hot-air-extraction pipe
    and connecting the air conditioner to the power supply
  • Mobility – although it is possible to move the air conditioner between buildings or different floors of the same building, you mainly take advantage of its mobility to use the same device in the living room, in the evening, and in the bedroom at night, for example.

If used at home, such an air-conditioning system has some limitations when compared to the solution discussed above:

  • Performance – this is significantly lower than with split-type systems,
  • Noise level during operation – portable air conditioners are not as quiet as split-type air conditioners. Therefore, if you are particularly sensitive to noise, it will be harder to concentrate or fall asleep when the unit is working nearby.

Finally, portable devices can also dehumidify the air, and some models also feature  a heating function, for example the KAISAI KPPD.

 
How much power does home air conditioning use?

Home air conditioning usually has a low cooling capacity, which means that power consumption is also not very high. Electric power drawn from the mains by an air conditioner is about 3 times lower than its cooling capacity. Thus, an air conditioner with the lowest capacity of 2.6KW will consume less than 1kW of electricity
per hour of operation.

 

Is the energy-efficiency class important?

The more economical a device is, the higher is its energy class. When purchasing an air conditioner, it is therefore worthwhile to ensure that the energy class of the unit is at least class A. When operating the air conditioner, remember to close the windows in the air-conditioned room, thus contributing to the savings on energy bills. Do not set too low a room temperature on your remote control, as this can increase the operating costs.

KAISAI at CHILLVENTA Fair 2022

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KAISAI at CHILLVENTA Fair 2022

At a 100-square-meter booth located in Hall 4A of the modern NürnbergMesse complex, the Klima-Therm Group presented the latest air conditioning, ventilation and heating solutions from its own brands KAISAI and Klimor.

In terms of the range of KAISAI-branded equipment, visitors to the booth had the opportunity to learn about solutions from the Renewable Energy Sources (RES) segment, led by air-to-water split and monoblock heat pumps for R32 refrigerant and a new product in the portfolio - the KHX series of monoblock heat pumps for the natural refrigerant R290 known as propane. KAISAI's RES exhibition was rounded out by PV modules and inverters, and for the first time: energy storage. Air conditioning products from the RAC and LCAC segments included FLY and ECO wall units, as well as numerous novelties represented by ProHEAT and HOT air conditioners dedicated to heating, and GEO and ONE+ models. The exhibition of KAISAI brand air conditioners was enriched by typical commercial products: the KFS stand-alone floor air conditioner and the KUE floor-sub-floor model.

Klima-Therm in Nuremberg presented itself not only as an exhibitor, but also as an active participant in the event accompanying the exhibition, which was the "Expert Forum". A substantive presentation on solutions supporting the modernization of buildings in terms of minimizing energy losses and improving energy efficiency, including the replacement of heat sources with efficient and non-emitting ones, was given by Paweł Deska, Technical Director. The main theme of the expert lecture was KAISAI heat pumps for the environmentally friendly refrigerant R290, which were presented through the prism of current legislation and pending changes to the market.

CHILLVENTA is the second trade fair this year, next to Mostra Convegno in Milan, in which Klima-Therm Group participated as an exhibitor. Presence at the largest exhibition arenas in Europe is part of the company's business strategy to further intensify sales in foreign markets.

The next event at which KAISAI announces its presence will be the ISH trade fair in Frankfurt, Germany (March 13-17, 2023).

Klima-Therm Group exhibiting at the CHILLVENTA 2022 trade fair

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Klima-Therm Group exhibiting at the CHILLVENTA 2022 trade fair

On 11–13 October, Klima-Therm Group will participate in one of the world's largest trade fairs dedicated to the HVACR industry – CHILLVENTA in Nuremberg. During the three-day event, the company will showcase the latest solutions in air conditioning, ventilation and heating from the product portfolio of its own brands, i.e. Kaisai and Klimor, in addition to featuring as an active participant in the 'Specialist Forum' accompanying the exhibition.

This is already the seventh edition of the German CHILLVENTA trade fair, which has been held every two years since 2008. The last edition of the trade fair, also featuring the Klima-Therm Group, took place in 2018, attracting almost 40,000 visitors to the city of Nuremberg. After an interval caused by the Covid-19 pandemic, CHILLVENTA is returning in October 2022 with an impressive range of innovative solutions in refrigeration, air-conditioning, ventilation and heat pumps showcased by approximately 800 exhibitors from more than 40 countries in an exhibition area consisting of nine halls.

At the Klima-Therm Group's stand, with a total area of 100 sq m, visitors to the CHILLVENTA trade fair will have the opportunity to discover the latest products from the Group's own brands: KAISAI and Klimor.

KAISAI's units on display will include solutions from the Renewable Energy Sources (RES) segment, such as split-type and monoblock air-to-water heat pumps which use the R32 refrigerant and a new product in the range – the KHX series of monoblock heat pumps which use the natural R290 refrigerant known as propane. PV modules and inverters will supplement the exhibited examples of KAISAI's renewable energy products. In Nuremberg, KAISAI will also be showing a range of air-conditioning solutions from the RAC and LCAC segments with the flagship FLY and ECO series wall-mounted units, as well as numerous new products, such as the ProHEAT and HOT air conditioners designed for heating as well as the GEO and ONE+ models. The exhibition will be made complete with commercial units, among them the KFS stand-alone air conditioner and the KUE floor/ceiling model.

Klimor will present several brand-new energy-efficient devices used in air-conditioning and ventilation systems. With its high-performance plate heat exchanger, the EVO-S compact air handling unit will represent the manufacturer's commercial solutions segment. Among the solutions dedicated to residential buildings, visitors to the Klima-Therm stand will be able to familiarise themselves with the new Plug&Play Ready series of units: the EVO-T+ suspended compact air handling unit and the latest product exhibited at CHILLVENTA – even before its official launch in Poland – the BLAST recuperator with a counterflow heat recovery exchanger. This unit has built-in Wi-Fi and space for two filters on the supplied air side as standard. Moreover, the recuperator is equipped with an innovative system against frost formation designed for the heat recovery exchanger and an electricity consumption meter.

- "Klima-Therm Group's presence at global trade fair arenas is primarily due to the strategy of developing our business activities abroad," – explains Andrzej Walendowicz, Vice-President of the Board and Sales Director of Klima-Therm Group, and adds: - "In 2021, our sales in foreign markets exceeded EUR 40 million and accounted for 36 per cent of the Group's revenue. Without a doubt, export is the company's key pillar of corporate dynamism, around which its future is centred. For that reason, I am convinced that the upcoming CHILLVENTA trade fair, and the Mostra Convegno held in Milan earlier this year, are particularly favourable venues for promoting the company and establishing new business contacts with foreign partners. Nuremberg is an even more prestigious event for us, as we operate in the German market directly through Klima-Therm GmbH."

The seventh edition of the CHILLVENTA trade fair will take place from 11–13 October at NürnbergMesse. The stand showcasing air-conditioning solutions and heat pumps from the KAISAI range and Klimor ventilation systems will be located in Hall 4A and numbered 4A-307. Importantly, the company's presence at the trade show will not be limited to its product stand. The Klima-Therm Group will also take part in the accompanying event – the "Specialist Forum". On Thursday, 13 October at 12:20 in Hall 4A-401, a lecture will be given by Paweł Deska, Technical Director at Klima-Therm. The subject of this presentation will be solutions used in supporting the modernisation of buildings in terms of minimising energy losses and improving energy efficiency, taking into account the replacement of heat sources with efficient and non-emitting devices.

WE HOPE YOU CAN JOIN US THERE!