Health Department spokesman Jeff Moran said Saturday that both men were found Friday and their deaths were confirmed Saturday to have been due to heart disease and heat exposure.
Moran said a 62-year-old man was found in northeast Philadelphia with no air conditioning and the windows closed.
He says a 53-year-old man was found in southwest Philadelphia in an area with no air conditioning and no windows.
A 70-year-old man with a history of cardiovascular disease was found dead Sunday in a Mount Airy room with windows closed and fans blowing.
The National Weather Service says Philadelphia recorded 101 degrees on Saturday.