Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

Undersized Solar Pumping Station Pump - worth replacing?

  • 12-11-2014 11:13am
    #1
    BigGeorge
    Registered Users, Registered Users 2 Posts: 473 ✭✭


    Have a solar thermal panel set up, 3 sets of tubes ( 28 small tubes on each) in parallel, with a pumping stations back at the tank. Its is a long run & the pumping station is putting out about 8 lt/min. I have the system drained down & flushed as the flow rate had dropped to about 6lt/min. Its in 3 year & working.

    The pump is a Wilo solar specific pump. To go for a more powerful model - about 40% extra head - is about €200. I think the flow rate should be about 12-15lt/min. Is there anyone with experience to say this is a change worth making & will I harvest much extra heat

    The heating vessel is a very large stratified tank so can absorb massive amounts of heat, currently about 30C at the bottom of the tank with 60 at the top. I cannot change the sytem configuration so make major changes unfortunately. Advice really appreciated.


Advertisement