Health officials in Quebec this week urged people to drink plenty of water, reduce physical activity, seek out air conditioning, and stay in the shade.
Public health officials said on Friday that coroner investigations will be completed to confirm that the reported fatalities are all heat related.
Quebec health authorities say 33 people in the province have died from heat-related complications over the last few days.
"It could save a life", Genereux said.
The death toll has climbed every day this week, with most of the victims between the ages of 50 to 80.
Environment Canada says a heat warning remains in effect for an area spanning southwestern and northeastern Ontario through southern Quebec and into the Atlantic region, with above normal temperatures and humid conditions likely to stick around into Thursday.
Prime Minister Justin Trudeau tweeted condolences to the relatives of the Quebec victims.
"While we are an advanced industrialized economy, these deaths reflect that there are serious social inequalities", he said, adding that many wealthy countries the world over had been hit by heat waves associated with climate change.
"Most of the deaths are a result of chronic illnesses, but due to the high temperatures, it is possible to conclude that the heat has contributed to the high number of deaths".
Neighbouring Ontario has also been coping with high temperatures but no deaths have been reported there.
"What we know is, first they have heat stroke".
Drouin said ambulance technicans have been very busy, with the Urgences-sante service receiving more than 1,200 calls in Montreal on Wednesday and having to make 695 trips.