Latest posts

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  Heat Pump Ranking 2025: Best Models and Key Selection Criteria

  Posted in: Heat pumps and all aspects of their operation

  3747 Views 3 Liked

  Choosing the right heat pump nowadays can be quite a challenge. This decision requires careful consideration. That’s why a heat pump ranking can be an extremely helpful source of information. It not only features the best models available on the market but also highlights the key criteria worth considering when making a decision.

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  Heat Pump Defrost: The Key to Efficient Operation

  Posted in: Heat pumps and all aspects of their operation

  789 Views 2 Liked

  Everything You Need to Know About Defrosting. What It Is, How the Defrost Process Works, and Why It’s So Important. All the essential information—explained in a simple way.

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  R290 Heat Pumps: Eco-Friendly and Efficient Heating Solution

  Posted in: Refrigerants and heat exchangers for gas, Heat pumps and all aspects of their operation

  780 Views 1 Liked

  When ecology is a priority, R290 heat pumps are being promoted. They are becoming trendy and are increasingly chosen for home heating. What do they offer? Besides ecology, is this choice justified? In short, is it cost-effective and does it have any market advantages, or are we simply paying extra for ecology and climate protection?

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  R134a: Everything About the Popular Refrigerant

  Posted in: Refrigerants and heat exchangers for gas, Heat pumps and all aspects of their operation

  1117 Views 1 Liked

  The most important information—everything you need to know about R134a, once the most popular and still widely used refrigerant. Many heat pumps still operate with this gas today—what does the future hold for it?

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  Is underfloor heating healthy?

  Posted in: Underfloor heating and everything about its operation, Others

  530 Views 2 Liked

  Underfloor heating, a heating system installed beneath the floor surface, is gaining increasing popularity in modern construction. Why? This solution not only provides comfortable warmth but also stands out for its energy efficiency. Moreover, it can offer health benefits—especially for people struggling with allergies or circulation issues.

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  UV Sterilizers and Lamps for Aquariums: A Comprehensive Guide

  Posted in: Water filtration and purification - CH, DHW, drinking water

  882 Views 2 Liked

  Aquaristics is not just about breathtaking views but also comes with many responsibilities. If you want a clean and healthy aquarium, a UV sterilizer can be an indispensable support. This innovative device uses UV-C radiation to effectively eliminate unwanted intruders such as bacteria, viruses, and algae. As a result, the water in your aquarium becomes not only crystal clear but also safe for fish and plants.

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  The Expansion Valve in a Heat Pump

  Posted in: Refrigerants and heat exchangers for gas, Heat pumps and all aspects of their operation

  1419 Views 2 Liked

  The expansion valve, along with the condenser and evaporator, is one of the key components of the working cycle of a heat pump. Without it, one of the phases of the heat pump’s operation would essentially be ineffective. Learn how the expansion valve works and what its purpose is, which will help you understand the general principle of how a heat pump operates.

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  The History of District Heating and Urban Networks

  Posted in: Others

  1013 Views 1 Liked

  The history of district heating is a fascinating tale of how technology has transformed our daily lives over the centuries. From the earliest attempts to bring warmth into homes in ancient civilizations, through groundbreaking inventions of the Middle Ages, to modern, advanced systems – this evolution reflects not only technological progress but also the changing needs and challenges of societies. It is a story full of innovations that have shaped both our homes and entire cities.

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  Connecting a Fireplace to a Sealed System via a Plate Heat Exchanger

  Posted in: Heat exchangers and everything related to them, Others

  1146 Views 2 Liked

  Connecting a fireplace to a closed system using a heat exchanger is a solution that is gaining increasing popularity in modern heating systems. It combines efficiency, safety, and user convenience. Contemporary fireplaces are increasingly becoming the centerpiece of home heating systems, with their integration into open systems becoming almost a standard. Such an installation not only boosts energy efficiency but also minimizes the risk of overheating or system failure. Sounds promising,...

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  Open Expansion Tank: A Comprehensive Guide

  Posted in: Central heating boilers and everything related to them

  1803 Views 1 Liked

  In today's world, energy efficiency and the safety of heating systems remain top priorities. But do you know how crucial a role an open expansion tank plays? This unassuming device, though small, serves a vital function in heating systems. It protects the system from dangerous pressure increases that can occur when water reaches excessively high temperatures or starts to boil. Simple yet indispensable.

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  Legionella in Water: Risks, Prevention, and Control | BLOG Nordic Tec

  Posted in: Water filtration and purification - CH, DHW, drinking water

  688 Views 1 Liked

  Legionella in water is a topic of growing importance, particularly in the context of public health. This bacterium, naturally found in aquatic environments, can pose a serious threat in places such as hospitals, hotels, or nursing homes, where water is extensively used or stored. Understanding the conditions that promote the growth of Legionella and implementing measures to effectively limit its spread are crucial. It is not only a matter of knowledge but also of responsibility.

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  Installing Underfloor Heating: A Comprehensive Guide

  Posted in: Underfloor heating and everything about its operation

  1008 Views 2 Liked

  Installing Underfloor Heating. In this guide, you will learn what makes underfloor heating increasingly popular and how to carry out its installation step by step to avoid potential issues.

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  How to protect a heat pump from an old central heating system?

  Posted in: Heat pumps and all aspects of their operation

  793 Views 2 Liked

  Are you planning to install a heat pump in a house with an old heating system? How can you protect the heat pump from the damaging effects of an open system? Read about how heat pumps are practically separated from old installations using plate heat exchangers.

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  Connecting a gas boiler to an open system via a plate heat exchanger

  Posted in: Heat exchangers and everything related to them, Central heating boilers and everything related to them

  1535 Views 3 Liked

  How is a condensing boiler in an sealed system connected to an open installation using a plate heat exchanger? How is the heat exchanger selected for this application, and what needs to be considered? We discuss all technical and practical aspects.

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  How to choose a thermostatic valve for a hot water tank?

  Posted in: Mixing valves, 3-way and 4-way valves

  875 Views 0 Liked

  In today's blog post, we take a closer look at the thermostatic valve for a hot water tank. Find out if you really know what it's used for, how to choose the right model, and why it's worth investing in one! Enjoy reading.

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  Heat exchanger and groundwater, deep well water, or rainwater

  Posted in: Heat exchangers and everything related to them, Water filtration and purification - CH, DHW, drinking water

  1080 Views 2 Liked

  The specifics of using plate heat exchangers (or others) with groundwater, river water, rainwater, deep well water, or brine are entirely different from using them with municipal water. Most manufacturers exclude warranty coverage for heat exchanger tightness if they operate with untreated water. Why?

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  How to connect a solid fuel boiler to a sealed heating system?

  Posted in: Heat exchangers and everything related to them, Central heating boilers and everything related to them

  1185 Views 2 Liked

  Solid fuel boilers most often require operation in an open system, which somewhat limits our options for connecting them, for example, to underfloor heating. However, there are ways to address this – check how the connection between sealed and open systems works.

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  A heat pump consumes a lot of electricity – what could be the reasons?

  Posted in: Heat pumps and all aspects of their operation

  807 Views 2 Liked

  Read this if your heat pump has started generating higher costs and consuming more electricity than usual. If there’s an issue with your return on investment and it was supposed to be cheaper, check what the possible reasons could be.

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