Search results

Specialuk: the pump is the grundfos alpha 25-60. Mr W. the pump is grey/black D-Hailsham: Connection sizes may be different? That would throw a spanner in the works!

I did speak with someone helpful at polyplumb. Grundfos were no help at all. The chap said the 25-60 was a European model and the UK replacement was the alpha + 15-60. That seems to have been replaced by the alpha 2L 15-60. I am hoping someone can confirm that pump will work.

Thanks approx 120 square metres.

Hi I need to replace a Grundfos alpha 25-60 pump. Its the circulation pump for the underfloor heating. It seems to be a rare pump and very expensive. Can I replace it with a similar pump, say the alpha 15-60? Help appreciated, thanks

Hi This is my pump: http://www.unopomp.com/Resimler/SiteIcerik/GRUNDFOSALPHA+.pdf I have noticed also that the pressure gauge on the boiler is bobbing up and down. Does that change things? Thanks

Hi Norcon Would you be able to explain that a little more for me? Thanks

Hi It started 2 days ago. The house temp dropped. When I checked for flow at the manifold for the undergloor heating I noticed a pump that is pulsing or sounding like the flow in in waves rather than constant. The flow valves are bouncing up and down with it. The pump is a grundfos alpha 25-60...

Hi Sorry I thought I'd done well with the info. What info would help you? Thanks

Hi I have a problem with underfloor heating. The upstairs radiators and boiler all seem OK. The pressure in the underfloor manifold is pulsing, I suspect due to the pump function. The pump is a Grundfos alpha 25-60. The temperature under the floor has dropped to 25 degrees C and the house is...