Wilo Yonos Pico 4169842 Commercial Central Heating Pump
Worst punp ever !!!
Wore out after 2 months, pay the extra and get a decent one.
30 Nov 2014
Good standard 15-50 pump
Bought this to replace failing Grundfos Alpha+. As others suggested, not sure where "commercial" comes from - appears to be a standard 15-50 pump with 130mm from flange to flange. Comes with gland washers. The Grundfos electric plug fitted too, which was handy.
So far (a week) working well, noticeably quieter than the Grundfos. I've never thought about the power these things use, but running at around 20W the Wilo seems very low.
1 Nov 2014
Really good pump
runs very quietly using very little power and a great price
16 Oct 2014
Great Central Heating Pump
I bought this pump to replace an early Grundfoss 15-50. On Line, Screwfix call it a "Commercial pump". Take no notice, it is an extremely quiet and sophisticated central heating pump suitable for most domestic situations and is a direct replacement at 130mm port to port and a 5m head. With variable and fixed speed settings and 'A' rated low power consumption. I have only given it 4 stars for reliability as it has only just been fitted, although the manufacturers seem confident with a 5 year warranty! (Grundfoss only offer 2 years).
11 Jan 2014