• 18 Posts
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Joined 1 year ago
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Cake day: June 18th, 2023

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  • Yes, there’s another pump back in the main line from the boiler.

    With the bypass valve closed, the hot water doesn’t seem to circulate at all - either down the bypass or through the loops.

    And, the thermostat on the circulating pump there switches it off below whatever temp you set. Once switched off, then the top rail starts to heat (implying that got water is now going into the loops). So strange , I just can’t get my head around how it’s ‘supposed’ to work, let alone if it’s actually working properly.