EntityQ3816234· pop 5· linked from 7 articlesGloriaSign in to savemedieval system of underfloor heating. central heating system used in Castile and Leon, Spain, primarily in the Middle AgesConnectionsSpanishEntityMiddle AgesEntityleafEntityAncient RomeEntityCastile and LeónEntityfuelEntityconiferEntitycombustionEntityhayEntityfirewoodEntityconeEntityKingdom of CastileEntityMesetaEntitysilageEntitycourtyardEntityhypocaustEntitycentral heatingEntityunderfloor heatingEntityondolEntitytwigEntityCategoriesHeating