A complete replacement of the heating system is very expensive – not everyone has the financial means for it. But does an exchange really have to happen? And how can it be cheaper?
If the heating system is outdated and the boiler is eating more energy than it efficiently converts into heat, it’s time for a replacement. But it is often very expensive. Isn’t it enough to simply replace a few components and extend the lifespan of the aging heater?
According to the North Rhine-Westphalia Energy Agency, the majority (on average 70 percent) of the energy costs spent on hot water supply and heating for a household. This value can be reduced by almost a third if homeowners have their old heating system replaced with a new, energy-efficient one and also use a solar system.
This prospect as well as the numerous government subsidies and measures make replacing the heating system more attractive for many than simply renovating it. In addition, the new heating system will be future-proof and will be powered by up to 65 percent renewable energy. This means that you are also doing something good for the environment – and at the same time forestalling the amendment to the Building Energy Act (GEG).
By the way: Insulating the roof reduces heating costs by around 3 percent, insulating the basement by 6 percent, replacing the windows and doors by 9 percent and insulating the facade by almost 13 percent.
You can, for example, have your heating modernization supported with funds from the Federal Office of Economics and Export Control (BAFA). The programs (see funding guidelines for “Federal funding for efficient buildings” (BEG)) apply to both partial modernization and heating replacement – provided the new system is powered by at least 65 percent renewable energy. In addition, tax support is possible for energy-efficient building renovations. It is important that interested parties seek guidance from an energy consultant before purchasing and installing the heating system. This calculates which heating system is economically viable and also supports you in applying for government subsidies. In addition, some funding programs stipulate that advice from an expert must be given before applying so that homeowners can receive the subsidies.
If you do not have the financial means to completely replace or modernize the heating system or boiler and still want to reduce heating costs, you can take the following small modernization measures (yourself):
But be careful: these small modernization measures for a small budget are not worthwhile for every heating system. Because some models may only be operated for a few years (see below).
What makes more sense varies from person to person. However, a rough indication can be determined using two questions: Is it more expensive in the long term to simply renovate the heating system (repair costs plus energy costs)? After how many years do the heating replacement and the low heating and hot water expenses pay off?
An energy consultant can also help you compare the costs.
Regardless of the revision of the GEG – also known as the Heating Act – there are also homeowners who have no choice whether to modernize only part of the heating system or have the heating completely replaced. Because it is already clear: certain heating systems have to go. For example, there is already an obligation to replace certain gas and oil heating systems that are more than 30 years old (see §72 GEG). And certain fireplaces are no longer allowed to be operated. Especially if you significantly exceed the permitted emissions values.
