This project is part of the “Smart Systems and Heat” Phase 1 Business Model Development Project. It will provide insights into consumer behaviour relating to heat decisions.The project will be made up of four small pieces of consultancy work looking at specific issues:Consumer Response & Behavious AnalysisLiterature Review Personality and Risky Heat DecisionsHousehold Heating Design AidsSegmentation AnalysisThis report is a toolkit of visual aids designed to help inform the design of products services and polices so they can successfully decarbonise heating in the UK. Among other things the toolkit includes household, building and heating systems icons and physical flash cards that enables engineers, policy and decision makers to think through the consumers’ perspective when designing a heating system or heating policy.