Thermalec electric heaters have been used for many varied applications including underfloor heating, canine & equine hydrotherapy pools, baptist pools, cheese vats, fountains, fish ponds and even shark tanks - there's one in Brighton Aquarium!
Cast in BS-EN-1561-1997-ENGJL-200 iron, with a heavy fusion bonded epoxy coating impervious to chemically treated pool water, a 1/2" drain valve at the lowest point allows the heater to be left empty in winter. Flow connections consist of easily removable UPVC stub flanges into which the pipes may be fitted using suitable adhesive. As the flanges can be released easily from the heater, no unions are required, nor is any form of heat sink needed. Flow direction is from left to right, but may be reversed quite simply on site following the installation instructions. Heavy duty nickel plated copper sheathed elements with low watt density for long life, are mounted individually in a removable top plate, which allows complete inspection of the interior of the vessel.