(under the class definition) Apparatus including (1) a heat transmitting means, e.g., plate, (2) insulation means, or (3) heat absorbing means; which means are movable to vary the heat transmission between a cooling source and a cooled space, or (4) means to vary the flow of a fluid past a heat transmitting panel mounted in a contact with insulation means so as to vary heat transmission through the panel.
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283, for removable moisture condensing means distinct from a principal heat absorber.