Thursday's blaze destroyed the residence in L'Isle-Verte, a town 225 kilometres northeast of Quebec City. Crews have had trouble recovering bodies in the ice-covered rubble due to the frigid temperatures.
Provincial police gave the update at a news conference yesterday, the fifth day of the excruciating recovery effort.
On Saturday, investigators brought in equipment normally used to de-ice ships that pushes out very hot air to melt down ice that police said was 60 centimetres thick in places.