The constant exposure of heat on the skin can put it at risk of damage and cause complications such as dryness, itchiness, toasted skin syndrome, etc.
Space heaters can further reduce the moisture content of the air during winters which can be unhealthy for the skin, people suffering from asthma, etc.
Using room heaters in a packed space can lead to the production of carbon monoxide (CO) which when inhaled can cause suffocation and death because it tends to replace the oxygen in the blood.
There are often sudden fluctuations in the temperature when moving from a heated room to a cold space. This can impact the body adversely by damaging the immune system.
Room heaters can also be a fire hazard in some cases which can have fatal consequences.
Keep all inflammable items away from your room heaters as they can be a fire hazard due to the constant heat source.
Avoid covering the room heater with a cloth as it can be a fire hazard.