Minka: Beautiful layout! I had that problem with my smoke detectors; turned out I had a gas burner on in error and gas was seeping into the house! Gas displaces the oxygen so the detector reacts to the carbon monoxide that takes over. Never knew they did that. I called the landlord in a panic when it wouldn’t shut up and he said: “check your burners and get out of the house!” It was scary. 😐
