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  • P1a
    • convection works very well in water as the currents move the warm water upwards easily
    • energy efficiency in the home
      • draught proofing strips on windows
      • u-values = how effective a material is as an insulator
      • pay back time isn't the only thing because things such as how much longer you will spend in the house are important factors
    • concrete is used in storage heaters
    • water is a poor conductor of heat as convection currents only warm water above hat source


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