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If you keep the heater on in the room to avoid cold, then know its disadvantages.
Samira Vishwas | November 19, 2025 6:24 PM CST

The cold has started increasing and especially in the evening, the cold increases even more and in this increasing cold, most of the people start using room heaters and blowers to keep the room warm. Room heater keeps the room warm and helps in maintaining the warmth of your body, but do you know that its excessive use can take a toll on your health. Yes, room heaters provide comfort in winters, but if used for too long or incorrectly, they can also have a negative impact on health and the air in the room. Today we will tell you in detail about the 5 major side effects of running a room heater in a room.

low humidity in room

Room heaters make the air in the room very dry. This increases problems like skin cracking, dry lips, and burning sensation in the nose. These effects are more visible in children and the elderly.

difficulty breathing

The amount of dust particles and pollutants present in dry air increases, which can cause problems to cough, sore throat, allergy or asthma patients.

low oxygen level

Some room heaters (especially coil and gas heaters) rapidly reduce the oxygen present in the room air. This can cause problems like headache, fatigue, and dizziness.

Danger of carbon monoxide (in gas heaters)

Gas room heaters can produce carbon monoxide if not properly ventilated. This gas is extremely harmful for the body and in severe cases can also cause unconsciousness.

fire hazard

If there are flammable items (clothes, curtains, blankets) around the room heater, the risk of fire due to short circuit, heater falling, or overheating increases.

How to use room heater safely?

  1. Keep some ventilation in the room.
  2. Never keep the heater close, especially near the bed.
  3. If running for a long time, use a humidifier or keep a bowl filled with water in the room.
  4. Turn off the heater while sleeping.
  5. Buy only ISI marked heater


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