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Variable speed hydronic circulator, residential

Variable speed hydronic circulator, residential

Variable speed hydronic circulator, residential

(OP)
I posted about this before in thread237-137561.

A followup for those interested -

Grundfoss has announced a hydronic circulator that is exactly what I needed and was trying to duplicate.

PM motor with integral speed control, and pressure sensor to maintian pressure across the pump. Exactly the type of device I kept ranting about "why don't they do this".  I would like to know if it is noisy like the one I tried but too late.  Not going to buy and install another circulator.

RE: Variable speed hydronic circulator, residential

Maybe they read this forum!

Eng-Tips: Help for your job, not for your homework  Read FAQ731-376

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