Wilo Pumps Yonos PICO 25/1-8 (ROW) High Efficiency Circulation Pump, Heating Circulator, Central Heating Pump, Replacement Circulation Pump

Out of stock
£339.36
Wilo Pumps Yonos PICO 25/1-8 (ROW) High Efficiency Circulation Pump, Heating Circulator, Central Heating Pump, Replacement Circulation Pump

Wilo Pumps Yonos PICO 25/1-8 (ROW) High Efficiency Circulation Pump, Heating Circulator, Central Heating Pump, Replacement Circulation Pump

SKU W-164691
Manufacturer part number
4215517
£339.36
inc VAT£282.80 ex VAT
Out of stock

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Description

Product Overview

The WILO YONOS PICO 25/1-8-(ROW) is a high-efficiency circulation pump designed for circulating water in heating and hot water systems. It helps maintain consistent flow through your system for reliable comfort while supporting lower running costs. Ideal for upgrades or like-for-like replacement where dependable circulation is essential.

Key Features

  • High-efficiency circulator design – helps reduce energy use while keeping heating performance steady.

  • Suitable for heating and recirculation duties – supports consistent flow for radiators and domestic hot water circulation.

  • Compact 25 size pump format – easier to fit in typical boiler cupboards and plant rooms where space is limited.

  • Reliable Wilo engineering – built for dependable day-to-day operation and long service life.

  • Ideal replacement option – a practical choice when swapping a faulty circulator to restore flow quickly.

Use Case / Application

Designed for use in sealed or open vented heating systems where a circulation pump is required to move water around the system. Suitable for:

  • Domestic central heating systems in houses and flats

  • Hot water circulation and recirculation loops (where specified by the system design)

  • Boiler and radiator circuits in utility rooms, airing cupboards and plant areas

  • Light commercial heating circulation in small premises

Problem → Solution

Ideal for restoring proper heating circulation when an existing pump has failed, is noisy, or cannot maintain consistent flow through radiators or pipework.

Product Specifications

• Manufacturer – Wilo Pumps
• Manufacturer Part Number (MPN) – 4215517
• Manufacturer Range / Series – Yonos PICO
• Product Type – Circulation Pump (Heating Circulator)
• Typical Applications / Use Cases – Central heating circulation, hot water circulation and recirculation loops, domestic and light commercial heating systems

Buy Wilo Pumps Yonos PICO 25/1-8 (ROW) from BHL

Wilo Pumps is known worldwide for efficient, dependable pump technology, and the Yonos PICO range is a popular choice for modern heating circulation. Buy online from BHL for competitive pricing, genuine parts where relevant, and free and fast UK delivery* delivered with care from UK warehouses. BHL is a specialist online merchant trusted by thousands of satisfied customers since 1998, with thousands of 5 star reviews. Order the Wilo Pumps Yonos PICO 25/1-8 (ROW) Part Number 4215517 today for a dependable replacement circulator.

*see our terms

Reviews

Buying guide: Circulation Pumps

Circulation pumps, or circulators, move water around a heating circuit or a hot water return loop so heat reaches every radiator and outlet. This category runs from compact domestic central heating pumps to large flanged single and twin-head pumps for commercial heating, and hot water circulators for secondary return systems.

Reading the model name

Many pump names follow a pattern: the first number is the nominal port size in millimetres and the second is the maximum head in decimetres, so a pump marked 40-80 has 40mm ports and up to about 8 metres of head. Letters add detail, such as F for flanged connections, D for a twin-head pump and N for a stainless steel housing. Domestic pumps also state the port-to-port length, often 130mm or 180mm, which must match the gap in the pipework.

Heating or hot water

  • Heating circuits: standard pumps have cast iron housings and suit closed heating systems.
  • Domestic hot water: the water in these systems is often aerated and would corrode cast iron, so return loops need a stainless steel or other housing approved for drinking water. Such pumps are marked as suitable for drinking water only.

Efficiency and replacement

Since August 2015, glandless standalone circulators have had to meet a minimum energy efficiency standard, and many now adjust their speed automatically to suit the system. When replacing a pump, match the port size, connection type, length, head and voltage, and the flange PN rating on larger pumps. Pump wiring should be done by a competent person to the current wiring regulations, and fittings on drinking water must be suitable under the Water Supply (Water Fittings) Regulations 1999.

For other pump types, see pumps; for hot water circulators, see hot water pumps.

Shop all Circulation Pumps

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