<p>A fluid delivery arrangement (1) comprising a heat transfer conduit (2) defining a cavity (3) adapted to be filled with a heat transfer fluid. An internal fluid delivery assembly (4) for conveying fluid along at least a portion of the cavity (3) of the heat transfer conduit (2). The fluid delivery arrangement (1) further comprising an external fluid delivery assembly (5) for conveying fluid along the external surface of the heat transfer conduit (2).</p>
