Electric heating systems can play a significant role in the energy performance of a building, as measured by the Energy Performance Certificate (EPC) rating. When it comes to storage heaters, they can have an impact on the overall EPC rating depending on their efficiency and control mechanisms.

EPC Ratings: The EPC rating provides an indication of a building's energy efficiency and environmental impact. It ranges from A (most efficient) to G (least efficient). The rating takes into account various factors, including insulation, heating systems, ventilation, and renewable energy sources.

Efficiency of Storage Heaters: The efficiency of storage heaters can vary depending on their age, design, and control mechanisms. 

Older storage heaters may be less efficient compared to newer models, which incorporate advanced features such as improved insulation, smart controls, and better heat retention. However, if old storage heaters are removed AND REPLACED with Oil Filled Radiators or Panel Radiators, it will actually LOWER YOUR EPC RATING. This will result in an EPC rating which is potentially lower than the legal limit of 'E'.

This is a key factor to consider for the imminent Government rise in EPC Rating 'D' in 2025.

There is the potential that any heater installed now, could requirement replacement in 2025 due to the EPC impact, as mentioned above.