News

2025-08-12

Pumps for central heating - what types are there and when which one to choose?

The central heating pump is a component without which a modern heating system simply would not work as it should. It's what sets the water in motion, delivering heat from the boiler, heat pump or heat exchanger to radiators and underfloor heating. It allows you to enjoy a constant temperature in each room, and the heat is distributed evenly. In this guide we will explain what types of CO pumps are currently used, how to choose the right model for your installation, and what mistakes in installation and operation can shorten the life of the device.

2025-08-04

Limescale in the heating system - causes, effects and prevention

Scale is the bane of many users of heating systems - both owners of single-family homes and administrators of large buildings or boiler rooms. This seemingly harmless mineral deposit can lead to serious operational problems. In the following article, we explain what exactly boiler scale is, why its presence in the heating system is harmful, the main causes of its formation, and how to effectively prevent deposits through proper water treatment.

2025-07-30

Anti-pressure valve - what is it and is it needed in a home installation?

Anti-contamination valve is a special type of check valve, the main task of which is to protect drinking water from secondary contamination. It acts like a one-way guard on the pipe - it allows water to flow only in the direction to the building, but in the event of an attempted reverse flow (backflow), it automatically blocks its path. This will ensure that contaminated water from the indoor system does not back up into the water mains or into other parts of the home system.

2025-06-03

Danfoss ECL weather controllers - a practical guide for users and installers

Weather controllers are devices that automatically adjust the supply temperature of the heating system to changing external conditions. Their main goal is to improve thermal comfort and increase energy efficiency. In practice, this means lower heating bills and more stable room temperatures.

2025-04-16

Domestic hot water storage tank - how to choose the right one for your installation needs?

Domestic hot water storage tank (c.w.u.) is a heated water storage tank, providing comfortable hot water in a house or building. Proper selection of its capacity is crucial - it affects both the comfort of users and the energy efficiency of the heating system. A tank that is too small can result in frequent switching on of the boiler or heat pump (to reheat the water after it is used up quickly), which increases operating costs and energy consumption. On the other hand, a tank with too large a capacity does guarantee a supply of hot water, but is associated with greater consumption of energy needed to heat and maintain the temperature of the water, generating heat loss. Therefore, it is important to select the capacity of the storage tank according to your needs - taking into account the number of users, the specifics of the installation and the heat source.

2025-04-08

Electric actuator for the control valve - how does it work and which one to choose for the heating system?

Electric actuators for control valves are a key component of automation in heating and cooling systems. They are responsible for adjusting the valve (e.g., opening or closing the flow of the medium) according to the signal from the regulator. This allows precise temperature and flow control without manual adjustment. Below we explain what such an actuator is, how it works in conjunction with different types of valves (globe and rotary), and what to look for when selecting an actuator for your heating system. We also suggest which models are worth considering - with a special focus on Danfoss offerings - and what mistakes are most often made when selecting these devices.

2025-03-31

How to select a new Danfoss AMB 162/182 actuator?

Danfoss actuators AMB 162/182 series are popular actuators for mixing and diverting valves in heating systems. Now Danfoss has already introduced a new, third generation of these actuators, replacing older models with newer designs. Older versions (the so-called second generation) of AMB 162/182 actuators are no longer produced - many of their catalog numbers have been withdrawn from the offer and replaced with new equivalents. In this article, we explain how to select a new Danfoss AMB 162 or AMB 182 actuator as a replacement for an older model that is unavailable. We provide a step-by-step overview of what to look for when selecting, and a breakdown of the old vs. new part numbers. In addition, we indicate the compatibility of the new actuators with valves (both Danfoss and other manufacturers) and give examples of the most popular models available on the market.

2025-03-26

New product family: fresh water stations Reflex Hydroflow

A fresh water station is a device for the preparation of domestic hot water (c.w.u.) in a flow-through manner - that is, heating water on demand without storing it in a large tank. In practice, this means that the water is heated when the tap is turned on, passing through a heat exchanger supplied with water from the heating system. This design ensures that you get fresh water every time, without prolonged storage at temperatures that promote microbial growth. As a result, the standard of hygiene c is significantly raised.w.u. - flow-through water preparation effectively protects against the proliferation of bacteria such as Legionella. It is therefore a hygienic alternative to the traditional boiler or hot water cylinder.

2025-03-12

How to choose the right diaphragm vessel for your heating system? - step-by-step guide to selecting an expansion tank

The diaphragm vessel (a.k.a. diaphragm expansion tank) is a key element in protecting heating, cooling and hot water systems from excessive pressure rise. Its construction is a steel tank divided inside by a flexible diaphragm (diaphragm) into two chambers: water and gas (usually filled with compressed air or nitrogen). This design allows it to take on the increased volume of water that occurs due to thermal expansion - when the water in the system heats up, its volume increases and the membrane flexes, allowing some water into the tank and keeping the pressure within safe limits . As a result, the system works properly, and the safety valve does not drop water every time it gets hotter.

2025-03-05

Reflex Greenbox - changing the approach to improving the quality of the refrigerant in installations

Every heating and cooling system requires the right quality of working medium to operate efficiently and without failure. Air, contaminants and improper water quality can lead to a number of problems - from reduced system efficiency to accelerated component wear and tear. Reflex Greenbox is one of the most advanced solutions that allows automatic control and optimization of the quality of the refrigerant, ensuring stable and efficient operation of the plant.