I sometimes complain about the lack of central heat in Japanese homes, which makes otherwise mild winters seem a lot worse than they really are. This is what the propane heaters look like. It burns fuel but produces almost no odor and is designed to be very safe--if a kid bumps it or an earthquake rattles it, it shuts off very quickly.

Camera model		Nexus 5X
Shutter speed		1/30
Aperture		f/2.0
Exposure bias		0.00
Exposure		Not defined
Exposure index		0.0
Focal length		4.67,mm
Distance		0.00 m
Light source		Unknown
Flash		Off
Metering		Unknown
ISO sensitivity		282
Latitude		34.503528˚ N
Longitude		133.42804˚ E
Location		Fukuyama, Hiroshima, Japan