The hearth and the Salamander can also mean happiness and if Montag chose to be happy or not. The two things in his life his home and his work. Did it really make him happy. He chose happiness over this home and his work by reading the books.
i am thankful for all those difficult people in my life. they have shown me exactly who i do not want to be. Hypocrites and the like who act one way at school and behave totally different in their homes. People who believe in one thing but act another.
On the left the paw of a Gray wolf (Canis lupus), on the right the hand of Jim Dutcher, a large, grown up man. To give you an impression how big Gray wolves are. Another comparison here Picture by Jim and Jamie Dutcher