A. Sounds like a Stephen King novel. The possessed radiator and the accomplice window are plotting to chase you from your house. Actually, you have a solvable problem caused by expansion and contraction. Radiator heat causes wood wall parts and windows to move. The movement comes in a few different forms. You have thermal expansion, which rubs wood against wood, and along the nails holding the wood. This slight movement causes a popping sound. If the wood has moisture in it, as a result of the heat inside meeting the cold outside, expansion is more extreme. Windows also experience changes. If they
