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Discussion in 'Plumbing Forum' started by malc, Jul 14, 2017.

Discuss COMBINATION CYLINDER in the Plumbing Forum area at

  1. malc

    malc Member

    Hello has anybody used or had experience of a Grunfoss upa 15-90 ?
    I need to improve hot water flow in a small flat so the shower and taps have better hot water pressure. There is a combination cylinder just supplying hot, and all cold is mains.
    Grunfoss say this pump can be installed inline near the cylinder to give about half to three quarters of a bar improvement, has anyone a better idea without installing mega flow or similar. thanks.
  2. galaxy_plumbing

    galaxy_plumbing Plumber GSR

    You may run out hot water quicker then cylinder gets filled. How fast is you cylinder filling?
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