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One drawback though is that there's a small time lag

One drawback, though, is that there's a small time lag between turning on the tap and getting hot water, and the flow rate is limited by how quickly the boiler is able to heat up the water. Heating expansion vessels are an essential item in any sealed heating system the vessel ... Engineers test a four-metre-tall humanoid manned robot dubbed method-2 in a lab of the hankook.

Added: 2020-05-07 | Category: one
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