The contact ther 皿al sensation caused by foot or buttocks contacted with floor is one of the evaluation index fer the floor heating. Thls paper deals with the evaluation method of the ther 皿 al sensation for the floor heating. The ther 皿al sensation of testing floors with ten types of floorcovering and four floor temperatures was evaluated by bare foot, slipPered foot and buttocks. The contacting surface te皿perature between an artificial foot and floor 冊as measured . The test results are as

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... Gws ; ( 1 > The relation between floor te皿perature and thermaI sensation is apProximately on a straight ! ine each floorcovering , and these lines crossed at foor te皿 perature of 32 ℃ to 34 ℃ , ( 2) The contacting surface temperature of artificial foot shews the sa 皿e tendency as that of hu皿an foot. ( 3) The relation between floor temperature and contacting surface te皿perature is apProximately on a straight line each floorcovering , and these l ines crossed at floor te皿perature of 32 ℃ to 34 ℃ . ( 4) The contactlng surface temperature can estimate the thermal sensation of floor heating , ( 5 > The co 皿 fortable range of sensati 〔 m is l , 6℃ to 3 . 2 ℃ of contacting surface temperature .