To optimise your heating system for improved Standard Assessment Procedure (SAP) results, several key strategies must be employed. Firstly, orienting your building to maximise solar gains and applying comprehensive thermal insulation, with an emphasis on minimising thermal bridging, are critical steps in reducing artificial heating needs. Enhancing heating system efficiency through modern technologies like condensing boilers and heat pumps, while integrating renewable energy solutions such as solar PV panels, will substantially elevate your SAP rating. Additionally, adopting a ‘Fabric First’ approach and ensuring effective ventilation with systems like Mechanical Ventilation with Heat Recovery (MVHR) can further boost energy efficiency, culminating in reduced energy consumption, decreased CO2 emissions, and improved overall building sustainability.