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- 28 Mar 2005
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A badly-installed wet underfloor heating system is heated by a 3kW element in a tiny, foam-covered immersion tank no bigger than a thermos flask - no make/model visible. I need to move pump onto cool side as it has been heat-damaged. Can I orient the little immersion tank upright or must it stay horizontal? Would make life easier if it can point up like a rocket. Cheers.