https://safeelectricity.org/space-heaters-post/

If using a space heater to take the chill off, do so safely.

Electric space heaters can help quickly warm a room. However, they can be as dangerous as convenient if used improperly.

Safe Electricity urges everyone in the home to understand the importance of using space heaters safely:

Many people also use electric blankets to keep warm during cold winter nights. Before plugging in electric blankets, check for any damage and inspect cord for frays, cracks or cuts. Electric blankets should not be tucked under the mattress and nothing should be placed on top of the blanket while it’s in use, including comforters and bedspreads. Pets should never be allowed to sleep on the electric blanket.