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Portable Heater Fires in Residential Buildings (2017-2019)

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Topical Fire Report Series | December 2021 | Volume 21, Issue 11

This report describes the characteristics of all portable heater fires in residential buildings reported to the National Fire Incident Reporting System for 2017-2019. While portable heater fires in residential buildings were only 3% of all heating fires in residential buildings, their consequences were substantial, accounting for 41% of fatal heating fires in residential buildings. Many of these fires were preventable, as human error was a contributing factor to the fire.

At a Glance

From 2017 to 2019, an estimated average of
1,100 portable heater fires in residential buildings
were reported to U.S. fire departments each year.


These fires caused an estimated annual average of:

65 deaths

65 deaths

150 injuries

150 injuries

$51 million

$51 million in property loss


3% of heating fires in residential buildings
involved portable heaters. However, portable heaters were involved in
41% of fatal heating fires in residential buildings.

January calendar

Portable heater fires in residential buildings peaked in January (25%).

radiator with an object on fire next to it and 48% overlaid

The leading reported factor contributing to ignition was placing a heat source too close to combustible objects (48%).


person lying in a bed

Portable heater fires in residential buildings most often started in bedrooms (34%).

smoke alarm

Smoke alarms were present in 41% of portable heater fires in occupied residential buildings.

fire sprinkler head

Full or partial automatic extinguishing systems (AESs), including residential sprinklers, were present in only 2% of portable heater fires in occupied residential buildings.

These topical reports are designed to explore facets of the U.S. fire problem as depicted through data collected in the U.S. Fire Administration’s National Fire Incident Reporting System. Each topical report briefly addresses the nature of the specific fire or fire-related topic, highlights important findings from the data, and may suggest other resources to consider for further information.