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Heating upgrade guidance

High Heat Retention Storage Heaters and EPC Ratings

High heat retention storage heaters may help some electrically heated properties, but the exact model, property context and current SAP Product Characteristics Database listing matter.

When they may help

They may be worth reviewing where the current EPC shows direct electric, room heaters, panel heaters or older storage heaters as a rating weakness.

  • Electric flats
  • Homes without gas
  • Older storage heater systems
  • Properties with suitable tariff and controls

PCDB and model checks

The EPC benefit depends on recognised product data and how the system is entered into the assessment. Check the exact model, controls and installation evidence.

Whole-house planning

Heating may not be the only route. Solar PV, insulation, hot water controls and lighting may also influence the pathway to EPC C.

Evidence before reassessment

Keep invoices, model numbers, specifications, installation dates and photos so an assessor can review the upgrade correctly.

Next step

Need a property-specific EPC C plan?

Make My Home Energy Efficient can review your EPC, model improvement scenarios, advise on the best route to EPC C and arrange suitable improvement measures through approved installers. Any outcome remains subject to evidence, current RdSAP methodology and final EPC assessment.