<p>A heat exchange device (10) and a method of compensating for increases in pressure in tubes (20) within the heat exchange device (10) is provided. The heat exchange device (10) comprises a plurality of the tubes (20) for carrying a first medium (40), and compressible means (60) insertable into at least one of the tubes (20). Expansion of said medium (40) causes said compressible means (60) to compress. Preferably the compressible means (60) comprises inert resilient material.</p>
