{"id":1257,"date":"2026-06-05T12:00:00","date_gmt":"2026-06-05T12:00:00","guid":{"rendered":"https:\/\/envision-solutions.de\/saving-on-heating-energy-practical-tips-on-heating-and-how-to-reduce-your-heating-bills\/"},"modified":"2026-06-27T07:51:22","modified_gmt":"2026-06-27T07:51:22","slug":"saving-on-heating-energy-practical-tips-on-heating-and-how-to-reduce-your-heating-bills","status":"publish","type":"post","link":"https:\/\/envision-solutions.de\/en\/saving-on-heating-energy-practical-tips-on-heating-and-how-to-reduce-your-heating-bills\/","title":{"rendered":"Saving on heating energy: Practical tips on heating and how to reduce your heating bills"},"content":{"rendered":"\n

Ventilation, windows, insulation, a new heating system \u2013 what really helps?<\/h2>\n\n

Saving on heating costs: Rising energy prices and growing environmental awareness mean that efficient heating is more important than ever. However, many households and businesses are not yet making the most of their heating systems\u2019 full potential for savings. Yet even simple measures can lead to significant cost reductions\u2014often without the need for major investment. <\/p>\n\n

In this article, we\u2019ll share some practical tips to help you optimise your heating system, save energy and, at the same time, maintain or even improve your comfort.<\/p>\n\n

Of course, this doesn\u2019t just apply in the workplace; many of these tips can also be put into practice at home, and some can even be used if you\u2019re a tenant and have no control over the building\u2019s systems or heating settings.<\/p>\n\n

Setting a low flow temperature: How to save heating energy effectively<\/h2>\n\n

The flow temperature is one of the key factors affecting your heating system\u2019s energy consumption. It determines how hot the water is that flows through your radiators or underfloor heating. The higher the temperature, the more energy is required. <\/p>\n\n

Many heating systems operate at unnecessarily high flow temperatures. This not only leads to increased energy consumption, but also to inefficient operation. Modern heating systems in particular, such as heat pumps, operate most efficiently at low temperatures. <\/p>\n\n

The flow temperature can often be reduced gradually. It is important to ensure that all rooms remain sufficiently warm. A viable approach is to reduce the temperature in small increments and monitor the effects. It often turns out that a comfortable indoor climate can be achieved even with significantly lower settings. <\/p>\n\n

This is also an excellent way to find out whether a heat pump can keep my house warm. To achieve this, we open all the heating valves and turn down the boiler\u2019s flow temperature. Naturally, you should test this over several days during a cold spell. If my house still stays warm even though the flow temperature is only around 45\u00b0C, there\u2019s nothing to stop me from running a highly efficient heat pump. Alternatively, you might find out which radiator needs replacing or in which room it might be worth installing additional heating via an air-conditioning unit. <\/p>\n\n

Separating heating and hot water supply \u2013 why it\u2019s worth it<\/h2>\n\n

In many buildings, the heating system is used for both space heating and hot water supply. Whilst this may sound practical at first, it is often inefficient. <\/p>\n\n

The reason is that hot water generally requires higher temperatures than space heating. If both are controlled by a single system, the system often has to be operated at a higher temperature than is actually necessary. This unnecessarily increases energy consumption. <\/p>\n\n

By separating the heating and domestic hot water systems, both can be optimally tailored to their respective functions. For example, the heating system can operate at low temperatures, whilst the domestic hot water is heated specifically and in line with demand. This approach is particularly beneficial in renovation projects or when using heat pumps, as efficiency in these cases depends heavily on operating temperatures. <\/p>\n\n

If we consider domestic hot water production in isolation, this also opens up new possibilities, such as decentralised generation, either via domestic hot water heat pumps or even simple instantaneous water heaters. Whilst the latter have a lower efficiency, when viewed within the overall system, they can achieve greater efficiency. The reason for this lies in the distribution losses caused by hot water circulation, which can account for up to 60 percent of the energy used for hot water production. Whilst this does keep the heat inside the house\u2014which is beneficial in winter as it reduces the need for heating\u2014it leads to an increase in the cooling load during the summer. <\/p>\n\n

Lowering the room temperature: achieving a big impact with small adjustments<\/h2>\n\n

Room temperature is an often underestimated factor in energy saving. Even a reduction of just one degree Celsius can cut heating requirements by up to 10 percent. We carried out a building simulation to investigate this, in which we varied the indoor temperature. In the extreme case, the room is heated to 24\u00b0C (light red) and then, in increments of one Kelvin each, down to 18\u00b0C (purple). The area under each curve indicates the amount of heat required for the respective temperature. <\/p>\n\n

\"\"<\/figure>\n\n

In this (albeit ideal) scenario, reducing the temperature from 24\u00b0C to 20\u00b0C already results in energy savings of almost 50% over the course of the year.<\/p>\n\n

The reduced heat demand does not translate directly into a reduction in heating energy consumption, but a reduction of one degree is usually associated with a saving of around 6 per cent. With heat pumps, the saving can be even greater if the lower indoor temperature is accompanied by a reduction in the flow temperature. <\/p>\n\n

However, a lower temperature does not automatically mean less comfort. Many rooms are heated to a higher temperature than is necessary anyway. Whilst temperatures of 20 to 22 degrees are common in the living room, 17 to 19 degrees are often sufficient in the bedroom. <\/p>\n\n

Even in rooms that are rarely used, the temperature can be lowered without any problems. However, it is important to avoid the room becoming too cold in order to prevent damp and mould growth. <\/p>\n\n

Modern thermostats or smart control systems help to regulate the temperature according to need \u2013 for example, by automatically lowering it at night or when you are away.<\/p>\n\n

Furthermore, it remains true that no other heating technology is as efficient as heat pumps. Ideally, these generate four kilowatt-hours of heat \u2013 or even more <\/a>\u2013 from one kilowatt-hour of electricity. <\/p>\n\n

Finding the right size of heating system and avoiding oversizing<\/h2>\n\n

A common cause of inefficient heating is an incorrectly sized heating system. Many systems are oversized because they were designed for maximum load conditions that rarely occur in everyday use. The reason for this lies in the heating load calculation method previously in use, based on DIN 4701, which usually resulted in heating loads that were significantly too high. If the heating engineer then added a substantial safety margin, the systems are generally far too large. However, even DIN EN 12831<\/a>, which replaced DIN 4701 in 2004, can still produce output values that are too high for larger and more complex buildings. In such cases, a building simulation based on real weather data and physical calculation methods can provide a more accurate result. Whilst this leads to higher design costs, it reduces both capital and running costs. <\/p>\n\n

If a heating system is oversized, it will constantly operate at partial load. This reduces efficiency, increases wear and tear, and can lead to higher running costs in the long term. <\/p>\n\n

Correct sizing is based on the building\u2019s actual heating requirements. These depend, amongst other things, on the insulation, the building\u2019s use and the climatic conditions. <\/p>\n\n

For new builds or refurbishments, it is therefore essential, as described above, to carry out a professional heating load calculation. Even in existing buildings, it may be worth checking whether the existing system is optimally configured or whether adjustments can be made. A physical building simulation is usually far too extensive for a detached house but is highly recommended for larger buildings. <\/p>\n\n

More useful tips on how to save on heating costs efficiently<\/h2>\n\n

In addition to the measures mentioned, there are a number of other adjustments you can make to significantly improve the efficiency of your heating system.<\/p>\n\n

A key aspect is hydraulic balancing. This ensures that every radiator in the building receives exactly the right amount of heating water. Without this balancing, heat distribution is often uneven \u2013 some rooms become too warm, whilst others remain cool. This results in the flow temperature being raised unnecessarily. <\/p>\n\n

Setting the heating curve correctly also plays an important role. It determines how much the flow temperature responds to changes in the outside temperature. An optimally set heating curve ensures that only as much energy is used as is actually required. <\/p>\n\n

Regular maintenance of the heating system is also crucial. Dirty components, incorrectly adjusted burners or air in the system can significantly reduce efficiency. An annual inspection by qualified personnel ensures that the system operates reliably and economically. <\/p>\n\n

Last but not least, proper ventilation also has a major impact on energy consumption. Windows left tilted open all the time lead to significant heat loss. Instead, you should ventilate thoroughly several times a day \u2013 that is, open the windows fully for a few minutes. This allows the air to be refreshed without the walls cooling down. <\/p>\n\n

Or, in the case of buildings with a central ventilation system, the use of heat recovery systems is crucial and can reduce the heating requirements of ventilation systems by up to 80 percent. Here, too, it is clear once again that energy-efficiency measures are usually the most cost-effective investments. <\/p>\n\n

Conclusion: Reduce heating costs and save energy<\/h2>\n\n

It is clear that there are many ways to make heating more efficient. Even simple measures such as adjusting the flow temperature, lowering the room temperature or optimising the heating system can lead to noticeable savings. <\/p>\n\n

Combining several measures is particularly effective. By also ensuring correct sizing, hydraulic balancing and regular maintenance, you can reduce your energy consumption in the long term whilst improving indoor comfort. <\/p>\n\n

In view of rising energy costs, it is more worthwhile than ever to take a critical look at your own heating habits and the technical equipment you use. Often, the greatest potential for savings is closer at hand than you might think. <\/p>\n\n

\n\n

Call to action<\/strong>:Would you like to reduce your heating costs in the long term and optimise the settings on your heating system? Then get advice now\u2014we’ll help you find the right solutions for your specific situation and save energy in the long run. <\/p>\n\n

<\/div>\n\n
\n\n

This blog post was created with the help of generative AI and has been carefully edited and corrected by us. In addition, similar tools were used to optimise the post for SEO (this ensures that search engines can find and rank this post highly). For this reason, the following keywords have also been added to the text, as there was no longer enough space to include them without compromising readability: saving heating energy, thermostat, saving heating energy, consumption, saving heating energy, bleeding radiators, saving heating energy, windows and doors, saving heating energy, saving money, saving heating energy, 20 degrees, saving heating energy, saving, saving heating energy, when heating, saving heating energy, curtains, saving heating energy, airing out rooms thoroughly, saving heating energy, sealing gaps, rented flat, 20 euros, a degree less, 15 per cent, energy-efficient renovation, 18 degrees, unnecessary energy, fresh air, 16 to 18 degrees, 20 euros a year <\/p>\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Ventilation, windows, insulation, a new heating system \u2013 what really helps? Saving on heating costs: Rising energy prices and growing environmental awareness mean that efficient heating is more important than ever. However, many households and businesses are not yet making the most of their heating systems\u2019 full potential for savings. Yet even simple measures can […]<\/p>\n","protected":false},"author":5,"featured_media":1256,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1257","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-unkategorisiert"],"acf":[],"_links":{"self":[{"href":"https:\/\/envision-solutions.de\/en\/wp-json\/wp\/v2\/posts\/1257","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/envision-solutions.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/envision-solutions.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/envision-solutions.de\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/envision-solutions.de\/en\/wp-json\/wp\/v2\/comments?post=1257"}],"version-history":[{"count":1,"href":"https:\/\/envision-solutions.de\/en\/wp-json\/wp\/v2\/posts\/1257\/revisions"}],"predecessor-version":[{"id":1258,"href":"https:\/\/envision-solutions.de\/en\/wp-json\/wp\/v2\/posts\/1257\/revisions\/1258"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/envision-solutions.de\/en\/wp-json\/wp\/v2\/media\/1256"}],"wp:attachment":[{"href":"https:\/\/envision-solutions.de\/en\/wp-json\/wp\/v2\/media?parent=1257"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/envision-solutions.de\/en\/wp-json\/wp\/v2\/categories?post=1257"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/envision-solutions.de\/en\/wp-json\/wp\/v2\/tags?post=1257"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}