Household appliance, in particular a household dishwasher, having a functional cavity, in particular having a dishwasher cavity, and an insulation arrangement for thermal and/or acoustic insulation of the functional cavity, in particular of the dishwasher cavity, is provided on the outside of the functional cavity, in particular on the outside of the dishwasher cavity, wherein the insulation arrangement for thermal and/or acoustic insulation of the functional cavity, in particular dishwasher cavity, has a first insulation element for thermal insulation of the functional cavity, in particular dishwasher cavity, and wherein the first insulation element for thermal insulation of the functional cavity, in particular dishwasher cavity, is manufactured from one piece of a synthetic material, characterised in that - the first insulation element for thermal insulation of the functional cavity, in particular dishwasher cavity, has adhesive properties in a cured and/or cross-linked state with the result that the first insulation element for thermal insulation of the functional cavity, in particular dishwasher cavity, adheres by means of a surface that is facing the functional cavity, in particular facing the dishwasher cavity, to the functional cavity, in particular to the dishwasher cavity, and said insulation element can be separated from said functional cavity, in particular from said dishwasher cavity, in a non-destructive manner, - the first insulation element for thermal insulation of the functional cavity, in particular dishwasher cavity, is connected in a positive-locking manner to the functional cavity, in particular to the dishwasher cavity, - the functional cavity, in particular dishwasher cavity, has on the outside an elevation which engages in a positive-locking manner in a depression that is provided on the first insulation element for thermal insulation of the functional cavity, in particular dishwasher cavity, and/or that the functional cavity, in particular the dishwasher cavity, has on the outside a depression into which an elevation that is provided on the first insulation element for thermal insulation of the functional cavity, in particular dishwasher cavity, engages in a positive-locking manner and - the positive-locking connection between the first insulation element for thermal insulation of the functional cavity, in particular dishwasher cavity, and the functional cavity, in particular dishwasher cavity, has an amount of play. - the first insulation element for thermal insulation of the functional cavity, in particular dishwasher cavity, has adhesive properties in a cured and/or cross-linked state with the result that the first insulation element for thermal insulation of the functional cavity, in particular dishwasher cavity, adheres by means of a surface that is facing the functional cavity, in particular facing the dishwasher cavity, to the functional cavity, in particular to the dishwasher cavity, and said insulation element can be separated from said functional cavity, in particular from said dishwasher cavity, in a non-destructive manner, - the first insulation element for thermal insulation of the functional cavity, in particular dishwasher cavity, is connected in a positive-locking manner to the functional cavity, in particular to the dishwasher cavity, - the functional cavity, in particular dishwasher cavity, has on the outside an elevation which engages in a positive-locking manner in a depression that is provided on the first insulation element for thermal insulation of the functional cavity, in particular dishwasher cavity, and/or that the functional cavity, in particular the dishwasher cavity, has on the outside a depression into which an elevation that is provided on the first insulation element for thermal insulation of the functional cavity, in particular dishwasher cavity, engages in a positive-locking manner and - the positive-locking connection between the first insulation element for thermal insulation of the functional cavity, in particular dishwasher cavity, and the functional cavity, in particular dishwasher cavity, has an amount of play.