Heat waves and Covid-19 overlap, as this pandemic continues into summer 2021 . Using a narrative review, we identified overlapping risk groups and propose coping strategies . The high-risk groups for heat-related health problems as well as for high-risk COVID-19 groups overlap considerably (elderly with pre-existing health conditions). Health care facilities will again be challenged by Covid-19 during such heat waves . Health care personnel are also at risk of developing heat related health problems during hot periods due to the use of personal protective equipment to shield themselves from SARS-CoV-2 and must therefore be protected from excessive heat periods . Some existing recommendations for heat health protection contradict recommendations for COVID-19 protection . This paper provides a preliminary overview of possible strategies and interventions to tackle these ambiguities . The existing recommendations for protection against heat-related illnesses need revisions to determine whether they include essential aspects of infection control and occupational safety and how they may be supplemented.