Holding bracket for hot-water baseboard

A hot-water baseboard heater comprising:

• an elongated enclosure configured for convective flow of air upwardly therethrough;
• an elongated heating element extending within and mounted in said enclosure and comprised of a metal tube having a connection end, and an array of metal fins spaced from said connection end;
• cross-linked polyethylene tubing having a fitting joined to said connection end for passing hot water through said metal tube;
• and
• a hold down bracket engaged in said enclosure and fitting at least partly around said tube between said connection end and said array, the hold down bracket comprising a substantially planar sheet-metal body formed with
• upper and lower bent portions engaging in channels formed in the enclosure at a top and bottom thereof,
• a generally L-shaped transverse plate connected to the body by a fold and fitting over the tube between the connection end and the array,
• first and second flanges bent perpendicular to a plane of the plate along edges thereof adjacent the tube;
• a third flange bent perpendicular to the plate and perpendicular to the body.