Heating System Check

The heating system inspection is a legally required inspection and optimization of heating systems with gas or oil condensing boilers, which was introduced in 2024 by the Building Energy Act (GEG) in Section 60b. The goal is to reduce unnecessary energy consumption through hydraulic balancing, optimized heating curves, and maintenance. The check must be performed by a licensed specialist company and is mandatory for certain buildings; owners receive a report with optimization recommendations.

For whom is the Heating Check mandatory?

According to Section 60b of the GEG, the Heating Check is mandatory for owners of buildings with central gas or oil heating systems. The requirement applies on a phased basis:

• Buildings with at least six residential units: Heating check must be completed by September 30, 2024
• Buildings with at least three residential units: Heating check must be completed by September 15, 2024
• Owner-occupied single-family homes: Recommended, but not (yet) mandatory

Exemptions apply to buildings for which a hydraulic balancing has already been performed in accordance with recognized technical standards, as well as buildings with a heating system that was first put into operation or completely renovated after October 1, 2009.

What does the heating system inspection entail?

According to GEG guidelines, a proper heating system check includes:

• Checking and adjusting the heating curve (flow temperature)
• Testing and, if necessary, performing a hydraulic balancing
• Checking pump settings (high-efficiency pumps)
• Inspecting control systems and thermostats
• Checking thermal insulation on pipes and fittings
• Report with measurement results and recommendations

The specialized company prepares a written report; in the case of a mandatory check, it must be retained and presented to the authorities upon request.

Energy-Saving Potential and Funding Opportunities

Studies show that many heating systems are set significantly too high for everyday use-a hydraulic balancing can reduce energy consumption by 10-15%. In combination with reduced operating hours, optimized pump settings, and insulated piping, savings of up to 20% are possible. The heating system check is a relatively affordable first step toward energy-efficient retrofitting.

Hydraulic balancing-often recommended as part of the heating system check or performed directly-ensures that all radiators in the building are supplied evenly with the correct amount of heat. Without balancing, nearby radiators receive too much heat, while distant ones receive too little. The result is overheated rooms, unnecessary energy consumption, and reduced comfort. A professionally performed hydraulic balancing according to Method B is eligible for BAFA funding under the Federal Funding for Efficient Buildings (BEG) program.

The Heating System Check as a Selling Point in Real Estate Sales

Anyone looking to sell a property can use an existing heating system inspection report as proof of the property’s careful management. Prospective buyers are increasingly focusing on operating costs and energy efficiency. A report documenting an optimized heating system has a positive impact on the purchase decision and can facilitate negotiations. Combined with a good energy performance certificate, it signals: This property has been managed responsibly.

Practical Tip for Owners in Nuremberg and Franconia

We recommend that owners in Nuremberg and the metropolitan region not postpone the heating system inspection until the last quarter. Qualified heating specialists in the region were at high capacity in 2024 due to the mandatory requirement; owners who schedule in advance benefit from faster appointment availability.

It’s also worth combining the heating system inspection with an energy consultation from a dena-certified expert: This way, you’ll not only receive the legally required inspection but also a roadmap for the long-term energy optimization of your building. We’re happy to help our clients find suitable specialists and energy consultants in the region and take advantage of available subsidies.

Frequently Asked Questions

Is the heating system check also mandatory for heat pumps?

No. The heating system check under Section 60b of the Energy Conservation Act (GEG) applies only to gas and oil heating systems. Separate optimization recommendations apply to heat pumps, but there is no comparable legal obligation. However, we also recommend a regular review of the system settings for heat pumps, as incorrectly configured heat pumps also consume significantly more electricity than necessary.

How much does a heating system check cost?

Depending on the size of the system and the scope of the optimization measures, the cost of the check itself ranges from €200 to €500. A complete hydraulic balancing according to Method B for an apartment building can cost €1,000 to €3,000, but is eligible for a subsidy of up to 15% of the costs through the BAFA (BEG).

What penalties apply if the heating system check is not performed?

The GEG provides for fines in the event of non-compliance with the obligation. The amount depends on state law and the competent authority. In Bavaria, non-compliance can be treated as an administrative offense subject to a fine; the exact amount depends on the building and the specific case.

Do I have to repeat the heating system inspection?

The GEG currently does not require regular repeat inspections for the heating system-it was designed as a one-time mandatory measure to optimize existing systems. Nevertheless, experts recommend checking the heating settings every two to three years, as operating conditions and requirements may change.

What documents must owners retain after the heating system inspection?

The inspection report from the specialized company must be retained and presented to the competent authority upon request. In Bavaria, the building inspection authority of the respective municipality or district office is responsible for monitoring GEG obligations; in Nuremberg, this responsibility lies with the City of Nuremberg’s Building Regulations Office. The report should include details about the inspected system (type, year of manufacture, capacity), the measured values before and after optimization, and the recommended measures. Anyone who misplaces the report or is unable to present it risks a fine during an inspection. We recommend keeping the report permanently with your property documents-along with the energy performance certificate, construction plans, and maintenance records for the heating system and elevator.

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