The area around the fireplace in the living-room of a family house.
“How much death must an old king have seen on the field of war, in the play of swords, without its grinning jaw coming over his own hearthside.”1961, Norma Lorre Goodrich, “Beowulf”, in The Medieval Myths, New York: The New American Library, page 43:
Working women are stressing out their male partners by discussing business problems around the family hearthside.2000 January 11, Judi James, “How was your day, dear?”, in The Guardian, archived from the original on 09 May 2014:
hearthside
adj
Etymology From hearth + -side.
1
Used to identify something as normally being in the area of the fireplace.
A hearthside rug.
2
Pertaining to an activity normal to the household, usually associated with the living-room, whether or not it has a real fireplace.
Every Wednesday we have a hearthside meeting of the family.