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    Greenstar cdi 40 hitting Gradient Limit

    Please help chaps - I have two little boys , one 2y and one only 5m... apparently cold weather is coming and the plumber who put this system in last month has gone on holiday for 2 weeks! I'm desperate to get the heat on before my wife leaves me!
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    Greenstar cdi 40 hitting Gradient Limit

    I installed a Greenstar cdi 40 to heat a polyplumb suspended underfloor heating system in a 4 storey house. I'm using a manifold on each floor, each supplying 2/3/4 circuits per floor. The primary circuit is fed by a 15-60 130 modulating pump, and the each of the manifolds are powered by a...
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