Compliance with the European Union ErP (Energy-related Products) directive is mandatory for importing electric water heaters into EU markets like France, the UK, and Germany.

What Determines the ErP Energy Class in Storage Water Heaters?

The ErP rating (typically Class B or C for standard storage units) measures standing heat loss-the energy consumed to maintain water temperature when idle over 24 hours.

Key Factors for Achieving High ErP Compliance:

• High-Density CFC-Free Polyurethane Foam:

The insulation layer thickness and density dictate heat retention. ANTO uses ultra-dense, environmentally friendly polyurethane foam (over 38–40 kg/m³) to minimize thermal bridging.

• Smart Thermostat Integration:

Advanced electronic thermostats with self-learning microchips analyze daily water usage patterns, automatically lowering standby temperatures during non-peak hours.

• Compact Dual-Tank Architecture:

Distributing water volume across twin tanks reduces individual surface area exposure, resulting in lower thermal radiation loss.

Partnering with a Certified OEM Manufacturer

Navigating European energy regulations requires verified lab test reports and CE/ErP documentation. ANTO Electric provides full regulatory support and optimized insulation designs tailored for European importers.

Need ErP Class B/C certified electric water heaters for your upcoming shipment?

[Request ANTO Product Catalog & Test Certificates](https://www.antogaswaterheater.com/).