How many House senate seats?

The Senate of Canada has 105 seats.

(Note that the Constitution Act, 1867 provides that Her Majesty the Queen of Canada may authorise, on the recommendation of the Governor General of Canada, for the summons of an extra four or eight senators, to bring the total membership of the Senate to a maximum of 113 seats. The Governor General has only made such a recommendation once, on the advice of the Right Honourable Brian Mulroney, the 18th prime minister.)