Who said "I'm living in a furnace!"?

This quote is attributed to Frank Costanza.

I'm living in a furnace! - Frank Costanza

"I'm living in a furnace!"

Frank Costanza

"These pretzels are making me thirsty."

"I'm out there, Jerry, and I'm loving every minute of it."

"Giddy up!"

"The sea was angry that day, my friend."