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Technological development is faster today than ever before. Thanks to innovations, modern heating systems are far more efficient and economical than older ones. Heating is the highest item on energy bills, and therefore modernising the heating system has the greatest potential for savings. This potential is even higher than insulating the house. Find out which elements are key when modernising heating.
Outdated heating systems consume up to a third more energy than modern ones. This is mainly due to lower efficiency, limited heating optimisation options, and heat losses. High consumption also has a significant negative impact on CO2 emissions and the environment.
Moreover, older heating systems do not provide satisfactory thermal comfort even with higher consumption. Heat is delivered unevenly and regardless of your current needs or outdoor temperatures. Add to this frequent breakdowns and difficult and costly maintenance – and there are more than enough reasons for modernisation.
So what are your options if you decide to invest in modernising your home heating? You don't have to change the entire system right away. You can consider replacing some key components based on diagnostics and the individual needs of your household, or modernise the heating gradually.
The first step before actually modernising the heating should be an energy audit of the house, where an expert conducts a thorough review of all heating components and the building's structural and technical condition. Based on the audit results, they should propose steps for heating modernisation. It is necessary to consider not only the initial investment but also the impact on operating costs, i.e., the return on investment.
Heat Source
An outdated boiler definitely deserves replacement, not only for savings but also for safety and environmental protection. Among the most financially advantageous options with a quick return on investment are the gas condensing boiler and the heat pump, which is particularly suitable for insulated houses with underfloor heating. Therefore, in older houses, a gas condensing boiler is more often chosen.
Heat Distribution
It is solved either by radiators or underfloor heating (or even ceiling or wall heating). In older houses, old cast iron radiators are most commonly installed, which have high durability, long lifespan, and good heat distribution properties. If they are not rusty and seal well, there is no reason to replace them. You can improve their efficiency with regular maintenance and insulation of the distribution and also by installing magnetic filters for heating.
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Cast iron radiators are durable and efficient
Heating Regulation
Heating can be regulated by heads or a room thermostat. In older houses with radiators, regulation is usually handled by manual thermostatic heads on the heating, which are not only inaccurate but also need to be manually turned in case of temperature changes, which most people forget. Inefficient regulation causes high consumption and low comfort – some rooms are cold while others are unnecessarily overheated.
In contrast, with smart thermostatic heads or wifi thermostats, you can set the exact desired temperature, even remotely via a mobile app. You can thus regulate all radiators individually for perfect comfort and savings. The return on this investment is estimated at 1-3 years.
Circulation Pump
This small and inconspicuous element of the heating system is often unjustly overlooked. Yet, the circulation pump for heating ensures that the heat transfer fluid reaches where it should. Modern circulation pumps ensure much more efficient water distribution, faster and taking into account the current needs of the system, all with energy demands up to 85% lower compared to old pumps. The investment will pay off in 1-2 years, depending on the current electricity price.
Compared to old circulation pumps, electronic ones ensure much more efficient distribution of the heat transfer fluid, resulting in even and economical heating of the house. Old pumps work unnecessarily at constant power, while modern electronic circulation pumps adjust their power to the current needs of the system.
Top products are offered by the Danish brand Grundfos, whose circulation pumps feature a range of practical smart functions that will improve the efficiency of your heating.
Intelligent circulation pump Grundfos Magna 3
Circulation pumps Grundfos Magna 3 feature patented smart functions AUTOADAPT, FLOWADAPT, and FLOWLIMIT, which increase heating efficiency and economy completely automatically, without the need for manual settings. The software monitors your usual daily consumption and continuously evaluates the system's requirements. Based on the collected data, it optimises its operation for maximum savings.
Balancing the heating system ensures even heat distribution. If the system is not properly balanced, the heating water simply does not reach some places. As a result, there are cold rooms and the need to overheat. Manual balancing is in the hands of an expert who needs various balancing valves and precise calculations. However, modern technology allows for much simpler balancing.
Circulation pumps Grundfos Alpha 2 are the only ones on the market with a system balancing function. You can easily perform the balancing using the additional ALPHA Reader sensor module, which connects directly to the pump, and the Grundfos GO Balance mobile app, where you simply fill in basic information about the system. You can easily do it yourself.
In the case of underfloor heating, you can solve system balancing quite simply with smart heating, especially using the Danfoss Icon2 system.
As you can see, even smaller investments can significantly increase the efficiency of the heating system and contribute to thermal comfort in the household. Replacing the old circulation pump and manual thermostatic heads on radiators is relatively cheap and simple, and you don't have to worry about any construction work.
At BOLA, we have intelligent circulation pumps and smart thermostatic heads and actuators for your home in stock. We are happy to advise you on your selection.
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