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What Is Better for Asthma: Forced Hot Air or Steam Heat?

Asthma sufferers seeking safe home heat must choose between radiators that heat through steam or forced air heating systems. Both can contribute to a healthy home, if you know how to make them work for you.

  1. Forced Air

    • Michael Segal MD PhDF says that forced air systems can circulate allergens, exacerbating symptoms of asthma. This is not an issue with steam, or radiator, heating systems.

    Steam Ventilation

    • As with any poorly ventilated home, houses that use radiators can harbor some of the same health hazards as those with forced-air systems: dry air, carbon monoxide build-up, dust mites and other environmental allergens.

    Exceptions

    • When fitted with an electrostatic precipitator and a high-quality filter to trap particles in the air, a forced-air HVAC system can prevent allergens from circulating through a home and actually improve indoor air quality, according to Consumer Reports.

    Considerations

    • A home heated with a radiator can also be safe for asthmatics, as long as air is properly circulated and filtered. Consult an HVAC technician for advice on air circulation and filtration.

    Expert Advice

    • Whatever type of HVAC system is in your home, limit exposure to outdoor allergens by keeping doors and windows closed, and regularly washing bedding and window treatments.

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