centeral heat heating systems works?

but no hot water comes out of the hot tapes at all .their dry.we live in a bunglow.we have afloor standing gas boiler and in the bath room teir is a big copper tank their is no electeric thomstate on it just pipes going to boiler and to the heating and hot taps on pipe their are four red switch off tapes and one leaver tape the big copper tank get red hot but no hot water comes out of tape help

robert allison
June 2008