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Wilo Yonos Central Heating Pump 6m (59045)

Suitable for domestic central heating, cooling and air conditioning systems. 1½" BSP connection.

  • Variable or 3 Fixed Speed
  • 6m Max. Delivery Head
  • 5 Year Manufacturer's Guarantee (T&Cs Apply)
  • Energy Rated
  • 3.5m³/hr Q Max. Flow Volume
  • 40kW
  • 1½" BSP Connection
  • IP44
  • ErP Compliant
  • Quick Connection Plug

More Info

£94.99INC VAT

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Wilo Yonos Central Heating Pump 6m is rated 4.6 out of 5 by 38.
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Rated 5 out of 5 by from Great Pump I purchased this pump, as I could hear a slight noise coming from my own Wilo Pump, fitted 18yrs ago. That was on 3/1/17, lo & behold, on 10/2/17 the old pump finally gave up, no shame in that. I have retired now, due to arthritis & couldn't get into the small cupboard it is mounted in, but my son, 26yr old, with no plumbing experience, fitted it, under my guidance. Just needed to shorten the wires, for a neat fit into the screw-less terminals & away it went. Won't even have to rewire that, next time round. All dead simple. Great to see the difference in power usage, 7watt on hot water only, & 29watt on hot water & heating, with setting at 1. I have always used Wilo Pumps, throughout my 35yr career & found them very reliable. If this one lasts as long as the last one.................nuff said. ;-) A wee tip: Smear a little silicone grease on the threads, before fitting. Makes replacement a doddle. PS: I have given Reliability 5 stars, but that is based on previous Wilo Pumps. Couldn't possibly give a reliability rating on this one, as it is so new, so make your own mind up.
Date published: 2017-02-12
Rated 5 out of 5 by from Wilo pump Good replacement pump, easy to install, electrical connections user friendly, ERP as well, shows head height as well a watts being burnt went in use.
Date published: 2017-01-20
Rated 4 out of 5 by from Superb pump Central heating tank started leaking so replaced that and all that goes with it,, re-started the heating and the old Grundfos pump showed its age creating a loud clattering noise.. Went to Screwfix online to order a replacement, but noticed the smaller and cheaper Wilo range and after checking out all the specs decided that it might be a good choice. Fitting was simple, exactly the same connectors as the Grundos. Powered it up and selected self-venting (very useful to have a display on a pump - you get valuable feedback as to what it is doing)... after this the pump ran virtually silently! A really pleasant surprise - I would recommend this to anyone needing to replace a CH pump.
Date published: 2016-12-03
Rated 5 out of 5 by from Silent operation My old CH pump packed up, probably the cap as it normal is on pumps in my experience but at this time of year I could not afford the wait so I decided to replace the whole pump for speed. The pump was 2004 vintage so it had done 12 yrs. This pump is a lot smaller which shows how pumps have improved. And totally silent in operation, all you can feel is a slight vibration which says it is running. My old pump also had a problem with water surge as when the thermostat cut out it would stop instantly causing the water to surge up the overflow to the F&E tank. I'd had to raise the overflow pipe to stop that actually overflowing into the tank. This pump seems to have softer stop which means it is also quieter when it turns off than the old pump. It also useful to have the variable load as all but one of my radiators have TRVs. All in all an excellent pump! Too early to say about the reliability but it does have a 5yr warranty so the makers have confidence in it.
Date published: 2016-11-24
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How do I decide on using variable or fixed speed on this pump?

Asked by: Graham9999
If you have TRVs on all your radiators then use variable, if they are all manual then you can used fixed. You can still use fixed if only one or two TRVs. I am not a plumber but my understanding is the variable speed is to accommodate TRVs switching the radiators off whilst the central heating is still on - the speed is automatically reduced. With manual valves the radiators stay on until the room thermostat turns the heating off.
Answered by: Silver20
Date published: 2017-03-05

Wilo model - precise number details please.

Is this pump the Yonos PICO 25/1-6 130? The description lacks a full reference.
Asked by: Fonz2000

Can this pump be installed horizontally in a loft?

Asked by: Kalisi

will this pump replace a Wilo Gold RS50? can just the head be repleced?

Asked by: Skycop
Yes this pump will replace a Wilo Gold 50, just replace mine! Same size, no hassle.
Answered by: ctr001
Date published: 2017-03-09
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Brand Wilo
Central Heating Pump Product Type Domestic Pumps
Connection Type 1½" BSP Connection
IP Rating IP44
Manufacturer Guarantee 5 Year Manufacturer's Guarantee (T&Cs Apply)
Manufacturing Standards EN 600335-2-51, 61000-3-2, 61003-3, 55014-1, 55014-2, LVD 2006/95/EG
Max Pump Head Size 6 m
Model No Yonos Pico
Pack Size 1
Pieces in Pack/Case 1
Power Output (Watts/Kw) 40 kW
Power Voltage Supply 230 V
Product Type Central Heating Pump
Temperature Range -10 to 95 °C
Total Product Weight 2.0 kg

230V. . Port to port distance: 130mm. Temperature range: -10 to 95°C. Weight: 2.0kg.

Product contents

Pump, plug and washers.