How to Read an ErP Energy Label? What to Consider When Choosing a Boiler?
One of the biggest challenges for users when purchasing a heating system is correctly interpreting the ErP energy label. In reality, this label provides a clear, at-a-glance view of how efficient, quiet, and economical a boiler truly is.
In this guide, we explain the ErP energy label step-by-step to help you make an informed decision.
What is the ErP Energy Label?
The ErP (Energy-related Products) energy label is an official system that displays the energy performance of boilers and heating systems in a standardized format.
This system allows consumers to compare different brands fairly and transparently. The label highlights:
• Heating efficiency
• Energy class
• Noise levels
Key Information on the ErP Label
🔹 Energy Class This scale, ranging from A++ to G, indicates the seasonal energy efficiency of the device.
• A++ / A+ → Maximum efficiency
• A → High efficiency (standard for most condensing boilers)
• B and below → Low efficiency
🔹 Seasonal Space Heating Efficiency (%) This percentage represents how efficiently the boiler operates over an entire year of average use.
• 90% and above → Efficient
• 100% and above → High-efficiency (condensing technology)
• Note: Condensing boilers reach these values by recovering latent heat from waste gases.
🔹 Sound Power Level (dB) The decibel (dB) value indicates the noise the boiler produces while operating.
• Under 45 dB → Silent
• 50 dB and above → Audible operating sound
• This is crucial if the boiler is installed in kitchens or near living areas.
Product Energy Label vs. System Energy Label
Under ErP regulations, there are two types of labels:
1. Product Energy Label: Shows the performance of the boiler alone based on factory settings.
2. System Energy Label: Evaluates the boiler + room thermostat + control units together.
👉 A boiler can often reach a higher energy class when paired with the right control equipment.
Why is the Energy Label Important?
The ErP label helps users:
• Select devices with lower natural gas consumption.
• Pay lower utility bills in the long run.
• Reduce their carbon footprint.
Does an A-Class Boiler Truly Save Money?
Yes. A-class condensing boilers operate at lower return water temperatures and prevent unnecessary fuel consumption through modulation. However, remember that insulation, radiator length, and usage habits also directly impact total savings.
Is Energy Class the Only Criteria?
No. While the energy label is a vital guide, you should also consider:
• Modulation Ratio: Ability to adjust power precisely.
• Service and Warranty Network: Accessibility of professional support.
• Spare Parts Availability: Long-term maintenance security.
• Proper Capacity Selection: Choosing the right power for your space.
Conclusion: The Erp Label is Your Guide
The ErP energy label allows you to make the right decision without getting overwhelmed by technical jargon. A high-energy-class boiler, chosen at the correct capacity, protects both your budget and the environment.