Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Vitodens boiler side pump speeds and HX flow rates

28W Member Posts: 141
I have a Vitodens WB1B-26 boiler, primary-secondary piping with LLH, with Grundfos 15-58 pumps. Can anybody tell me what the flow rates across the HX are at each of the pump's 3 speed settings? Thanks.


  • 28W
    28W Member Posts: 141
    Never mind. Found them in an old discussion. Thanks Chris.