Heat pumps are the answer to problems resulting from rising fuel prices and high levels of environmental pollution. They are the most economical heating devices because, despite significant investment costs, they allow you to significantly reduce subsequent heating bills. If you are wondering how to power the central heating system in your company or in the building you manage, be sure to check out our review of heat pumps!
What is a heat pump and how does it work?
A heat pump is a device that collects thermal energy from the environment and, with relatively little support from electricity, uses it to heat domestic water or water circulating in the building's heating system. This means giving up a significant part of the energy produced from fossil sources in favor of clean, environmentally friendly renewable sources.
The use of renewable energy sources is constantly gaining in importance because it allows us to become independent from fuel suppliers. The prices of electricity and gas have been increasing dramatically recently, so it is worth considering an alternative to traditional heating devices. Such solutions are provided by the heat pump market, which use 75% of the energy contained in air, ground or water to produce heat, and only 25% of electricity.
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Depending on the specificity and needs of the building, the pumps can operate independently or be supported by another heat source. The bivalent system works primarily when air heat pumps operate at very low temperatures. Some multi-family buildings will also benefit from it. Another solution for this type of facilities with high heat demand are cascade pump systems.
Heat pumps - selection and prices
In our review of heat pumps, we took into account devices that are used not only in detached houses, but also in office buildings, industrial facilities and multi-family buildings. When assessing them, we compared their key parameters, additional amenities and prices. It is worth noting, however, that the amounts quoted below are only general, and installers registered on our website can count on attractive discounts, significantly lowering the final prices. So which models look the best?
5) Hewalex PCWU 300 EK-2.5 kW
The 2.5 kW air-water heat pump is equipped with an integrated tank for heating domestic hot water. It has a capacity of 300 liters and is made of enameled steel. The device operates economically until the external temperature drops to approximately -7°C.
The Hewalex pump is used only for preparing domestic hot water, but it can operate both independently or in cooperation with another source. It is used not only in new but also in modernized buildings. It can successfully replace, for example, an electric boiler. In a residential building, it is able to cover the demand for hot water for 4 - 6 people. This number increases, among others, in office buildings. The heat pump can be easily operated thanks to the G426 controller with an extended range of functions.
The price of the Hewalex PCWU 300 EK-2.5 kW heat pump model in the Onninen offer is PLN 13,169.61. Create a business account and check the discounted price!
4) Immergas MAGIS PRO 9 V2
This model of air-to-water heat pump has a rated heating power of 9 kW and is characterized by a high coefficient of performance (ratio of heating power to consumed electrical energy) COP of 4.81-5.2 (conditions A7/W35 - A is the external air temperature, W – heating). Thanks to its efficiency, it can work effectively even at an external temperature of -25°C. Also noteworthy is the maximum supply temperature of the heating installation, which is as much as 65°C. This makes the Immergas heat pump suitable not only for underfloor heating, but also for traditional heating.
One of the key advantages of this model is the energy efficiency class A+++ for a supply temperature of 35°C. It is worth noting that such results qualify the device for increased financing under the "Clean Air" program. The power of the Immergas heat pump can be modulated in the range of 30-100%, which makes it easier to adapt its operation to the current needs of the building. This solution also guarantees stable system operation with the lowest possible operating costs.
The built-in three-way valve allows for direct connection to the domestic hot water tank pump. The device can also cooperate effectively with a photovoltaic installation, which translates into even further savings. The Immergas heat pump has both heating and cooling functions, and its automation has been adapted to control two zones, including one with a mixer.
The price of the Immergas MAGIS PRO 9 V2 heat pump model in the Onninen offer is PLN 23,921.04. Create a business account and check the discounted price!
3) Galmet Maxima 16 GT
The Galmet ground heat pump guarantees high efficiency and maximum thermal comfort all year round. Thanks to the use of a lower source with a stable temperature, the device can be used both for heating rooms in multi-family buildings and for preparing domestic hot water. It is characterized by excellent operating parameters regardless of the weather conditions outside. The pump has an impressive power of 16.6 kW.
The Maxima 16 GT heat pump has an energy class of A+++ at all operating levels. The safety of its operation is ensured by, among others, an electronic expansion valve and a scroll compressor, provided by leading manufacturers. The device also impresses with its quiet operation and reduced energy consumption, which can be attributed to high-efficiency electronic circulation pumps.
The price of the Galmet Maxima 16 GT heat pump in the Onninen offer is PLN 33,091.24. Create a business account and check the discounted price!
2) Kaisai ARCTIC 14.5 kW
The technical parameters of the Kaisai monoblock heat pump guarantee its exceptional efficiency, also adapted to the needs of shops, offices, commercial premises and multi-family residential buildings. Thanks to its compact design, the device does not pose any problems during installation and is characterized by quiet operation. It can be used both to heat water and to power the heating or cooling system of the building.
The outdoor unit is equipped with a circulation pump, auxiliary heater, safety valve, vent valve, pressure gauge and expansion vessel. Thanks to this, it is characterized by effective and safe operation. It is also worth mentioning the additional functions of the Kaisai heat pump, such as disinfection of the hot water tank, floor heating or holiday mode. The device has a very high power of 14.5 kW and energy class A+++ (at 35°C) and COP up to 5.2.
The price of the Kaisai ARCTIC 14.5 kW heat pump model in the Onninen offer is PLN 35,301. Create a business account and check the discounted price!
1) De Dietrich HPI Evolution 27 TR-2
The split air heat pump consists of an outdoor unit and a module installed inside the building. Thanks to the powerful power of 24.4 kW, the device guarantees efficient operation even at -20°C. The integrated hybrid function translates into additional savings when the pump is operated with an additional heat source. The solution is perfect for buildings with very high heat demand, being responsible for both home heating and domestic water heating. It has an excellent COP coefficient - depending on the external temperature when heating 35°C, from 2.25 to 3.9.
Low operating costs and very high efficiency make the De Dietrich heat pump an ideal solution for multi-family buildings. It can operate in a cascade system or in cooperation with another source, significantly reducing heating bills.
The price of the De Dietrich HPI Evolution 27 TR-2 heat pump model in the Onninen offer is PLN 51,881.03. Create a business account and check the discounted price!
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The popularity of heat pumps is constantly growing. This is hardly surprising, considering the increasingly higher costs of heating buildings, which translates into rent increases and tenant dissatisfaction. If you are looking for an efficient heating device for the building you manage , our review of heat pumps will certainly help you choose the perfect solution. All models mentioned in the article can be found in the Onninen offer!
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