b"HOW THE ECOGUARDWORKS Available in 4 sizesThe heat transferred to the Sealed elementsurface area creates radiant heat No burning smellswhich directly heats people and Doesn't mark wallsobjects, like the rays of the sun. Thecoolerairfromtheoorisdrawnupandchannelled throughthensoftheradiatorcreatingconvectiontoheat the air in the room. The element is sealed away meaning there are no burning dust smells and no unsightly brown marks will appear on the walls."