HowStuffWorks "Could radiant floor heating systems be related to some cancers? "

HowStuffWorks "Could radiant floor heating systems be related to some cancers? ": "Concerns about electric blankets are because of electromagnetic fields (EMF) they emit. Anything that runs on electricity has an EMF -- your microwave oven, clock radio, floor lamp, hair dryer and yes, your radiant floor heating (RFH) system. Before we get to whether or not there's any danger of you getting cancer from your warmed floor, we need to learn a little bit about an EMF."