Background The World Health Organization’s Health Economic Assessment Tool for Walking & Cycling commonly known as HEAT approaches its 10th anniversary, having been used in many countries across Europe, and elsewhere in the world. It enables users to estimate the societal value of reduced mortality that results from physical activity through regular walking or cycling. However, only a limited number of countries have the HEAT as an integral part of the process for decision-making regarding investments in active transport. A study was commissioned with the goal of generating recommendations to increase the use of the HEAT for Cycling across Europe Methods A multi-language literature review on the HEAT, a survey of users and follow up, in depth interviews were conducted by experts involved in the development of HEAT. Results The study found the following learning points: 1. National-level endorsement of the HEAT is increasing 2. The HEAT is solid and respected; this is not a barrier to its wider use 3. The use of the HEAT largely depends on an enthusiastic ‘early adopter’. 4. The most impressive thing about the HEAT are the numbers it produces. 5. HEAT is more useful in countries with low levels of cycling. 6. HEAT is more applicable in countries where economic appraisal is established. 7. HEAT is often used to justify existing decisions. 8. Communication and dissemination of HEAT and specific results – and its timing – can greatly influence its uptake. Discussion and Implications Recommendations for a strategy to increase the use of HEAT, generally in Europe, and specifically by member states of the European Union. 1. Focus on countries with the highest potential. 2. Create a network of HEAT ‘super-users’. 3. Encourage key stakeholders to ‘give it a try’. 4. Encourage its use in larger-scale modelling and scenarios. 5. Aim for the HEAT to be recommended for use by national transport administrations and the European Commission. 6. Invest in data collection. 7. Promote its use more generally. Reference: Cavill N & Kahlmeier S (2015) TURN UP THE HEAT: Recommendations to increase the use of the World Health Organization’s Health Economic Assessment Tool for Cycling across Europe. Free download at https://ecf.com/heat-study