A review of the processes used to call Alerts in Toronto found that the synoptic system is a useful tool to understand the extreme heat health risks in the community. [...] The purpose of meeting with the hot weather response committee and the workshop was to collect feedback on the possible uses, benefits and limitations of the maps from the perspective of their organizations’ mandates and daily activities. [...] Understanding and Planning for Heat in Toronto Interventions to reduce the impacts of extreme heat can address the physical environment in the home and in the community, the social environment, provision of services or resources, or knowledge and perceptions. [...] The overall pattern of the figure reflects the donut shape from Figure 16, suggesting that many of the hotter areas of the city are also home to groups of people who are especially sensitive to heat. [...] The installer must be able to certify that the air conditioner is safely installed, and the installation/inspection must be carried out at the cost of the tenant.