Abstract: A heat exchanger unit includes at least two heat exchangers of the plate fin type that are substantially identical cuboids offset from each other. The heat exchangers are linked to at least one single distribution conduit and at least one single collection conduit. At least one first heat exchanger is situated on one side relative to the axis of the single distribution conduit and at least one second heat exchanger is situated on the other side relative to the axis of the single distribution conduit. A first face of the first heat exchanger is parallel to the nearest face of the second heat exchanger, but offset in the direction of the axis of the single distribution conduit. Each heat exchanger is fluidly connected to the face proximate to the distribution conduit, the offset being such that the each fluid connection does not contact one another.