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Fan heater

Belongs to:
Heating systems
Synonyms:
Portable heater
Description:

A fan heater is a heater that works by using a fan to pass air over a heat source (e.g. a heating element). This heats up the air, which then leaves the heater, warming up the surrounding room. Fan heaters are often used as a temporary supplement or replacement for the central heating.

Frequency ranges:
  • 50–60 Hz
Type of field:
electric and magnetic

Measurements (acc. to literature)

Measurand Value Feature Remarks
electric field strength 3.26 kV/m (maximum) - at the surface of the device at 50 Hz [1]
magnetic flux density 19.8 nT (maximum) - spatially averaged value at distances from 30 cm - 3.05 m [2]
magnetic flux density 0.02 µT - at a distance of 50 cm [3]
magnetic flux density 0.17 µT - at a distance of 10 cm [3]
magnetic flux density 0.2–20 µT (maximum) - at the surface of the device at 50 Hz [4]
magnetic flux density 0.4–4 µT (maximum) - at a distance of 30 cm [5]
magnetic flux density 0.5–15 µT (maximum) - at a distance of 15 cm [5]
magnetic flux density 0.64 µT (mean, measured) - arithmetic mean value of 1601 measuring sites [6]
magnetic flux density 1.86 µT (maximum) - maximum value of 1601 measuring sites [6]
magnetic flux density 100–900 µT (maximum) - at a frequency of 50 Hz [7]

References

  1. Leitgeb N et al. (2008): Electric emissions from electrical appliances
  2. Mader DL et al. (1992): Residential exposure to 60-Hz magnetic fields from appliances
  3. Ainsbury EA et al. (2005): An investigation into the vector ellipticity of extremely low frequency magnetic fields from appliances in UK homes
  4. Neitzke HP et al. (2006): [EMF manual. Electromagnetic fields: sources, risks, protection]
  5. National Research Council (NRC) (1997): Possible health effects of exposure to residential electric and magnetic fields
  6. Kim YS et al. (1997): Exposure of Workers to Extremely Low Frequency Magnetic Fields and Electric Appliances
  7. Crasson M et al. (2005): Absence of daytime 50 Hz, 100 microT(rms) magnetic field or bright light exposure effect on human performance and psychophysiological parameters