There is no single minimum BER rating that guarantees an SEAI heat pump grant. SEAI generally requires evidence that the home is suitable for a heat pump, including a technical assessment of heat loss, and your home may need insulation improvements first. A valid BER certificate and other property requirements may also apply, with a post-upgrade BER potentially required. A registered SEAI heat pump contractor can assess your home, while the latest requirements and final grant decision should be checked with SEAI.