Abstract: An adjustable panel mounting system particularly adapted for skirting heating systems includes an extruded aluminum front panel (2) having a pair of inwardly turned flanges (10, 12) on its rear surface and flexible winged mounting adaptors (18) made of resilient material such as nylon. The adaptors fit loosely between the flanges of the front panel so as to allow up and down adjustability of the panel position to allow for uneven floors or to enable access to the space behind the panel, and also to allow the panel to move if adjacent panels expand on heating. The rear surface also carries tubes (14, 16) for heating water or electrical heating elements. The mounting adaptors are fixed to the wall by two part mounting blocks (32, 38) which provide additional adjustability in other directions.