Create a clear zone
Keep the heater at least three feet from beds, upholstered furniture, curtains, paper, clothing, and other burnable items. Place it on a hard, level, noncombustible surface where children and pets cannot knock it over.
Never use a heater to dry clothes or warm bedding. Keep exits and walking paths clear.
Give it the right power
Plug a portable heater directly into a suitable wall outlet. Do not use an extension cord or power strip. Stop using the heater if the plug, cord, or outlet becomes hot, loose, scorched, or damaged.
Choose equipment with an automatic shutoff that operates if the heater tips over, and follow all manufacturer instructions.
Supervision is part of the equipment
Turn the heater off and unplug it when leaving the room or going to sleep. Keep working smoke alarms on every level and inside and outside sleeping areas. A heater should never be the reason an escape route is blocked.
Sources and further help
This is general information. Follow instructions from firefighters, medical professionals, utilities, building officials, and your insurer.