Central heating pumps are specifically designed to circulate the hot water produced by the boiler or cylinder around the central heating system. They allow the water to reach all parts of the system whether that be radiators or underfloor heating, before returning back to the heat source to start the process all over again.
A central heating pump is a small mechanical tool installed on your central heating system, which allows you to pump hot water around your home efficiently.
But if this is the first time you’ve ever heard of a central heating pump, or you’re replacing a boiler pump for the first time, the vast number of central heating pumps on offer can be overwhelming.
Here is the reason why we at Stuart Plumbing have put this together to help choose the pump for you! This guide should be able to help answer the question “ do I need to fix or replace my central heating pump”
A central heating pump is a small mechanical tool installed on your central heating system which is used to speed up the process of circulating hot water from your boiler to the radiators in your home and back to the boiler.
The central heating pump is like the heart of your heating system. A Central Heating Pump works by taking water into the pump, pressuring the water with the impellers, before pumping the water around your heating system at a higher speed. This helps ensure that hot water is efficiently pumped around your home.
Central heating pumps are not complicated devices. Most boiler pumps will be made up of six components, see below diagram for the main components.
Water Flow Inlet
This is the area in which the hot water enters the pump. The diameter of the water inlet will be one factor that dictates the maximum flow rate of your pump.
Water Flow Outlet
This is the area in which the pressurised hot water exits the pump and travels around your central heating system. Again, the diameter of the water outlet will be one factor that dictates the maximum flow rate of your pump.
Pump Pressure Adjust
The pressure adjust dial is an electronic component of a central heating pump that allows you to increase the pressure of the water in your central heating system. If you are finding that specific radiators are not getting the required heat, then simply increase the pressure using the adjustment dial.
Pump Bleed Screw
Airblocks are a common issue that impact the performance of a central heating pump. Following the manufacturer’s instructions, the bleed screw helps you bleed trapped air out of the system.
Electrical Connections
This is where you can manage the pump’s electrical configuration.we recommend that you please make sure you read the manufacturer’s instructions before use.
Electricity Supply Cable
This is where you connect the pump to the mains electricity supply.
Each home is different, and the location of your central heating pump will be determined by the location of the boiler or the expertise of the plumber who installed it.
The most common locations to find a central heating pump are:
Near the boiler or hot water cylinder
Airing cupboard
Under the stairs
One of the great things about central heating pumps is that they only use electricity when you switch on the central heating system. This helps reduce the electric bill in the home.
Most central heating pumps will run off your main electricity supply, but you can also purchase cheaper, battery-powered models although these are not available for purchase at Stuart Plumbing.
Most domestic central heating pumps run on about 240 volts, which is about the same amount of power needed to operate a kettle.
Saying this, your central heating pump is unlikely to be on full power, so it’s possible that you will be using less than half the power of operating a kettle in a modern, well insulated home.
All central heating pumps sold here at Stuart Plumbing come with a warranty. Please see below a list of pumps we stock along with the Manufacturer’s warranty, product information / specification and some Manufacturers videos. If you have any questions please give Stuart Plumbing a call
The new domestic central heating pump which supersedes the UPS2 15-15/60.
It is a possible replacement for integrated, Pre ErP boiler pumps, This pump is suitable for the Grundfos Go Replace mobile app. Please take a look at our UPS3 section which has a video on how the Go replace app works.
Product features:
5 Year Warranty
Higher efficiency – EEI ≤0.20
Underfloor heating mode – 2 constant pressure settings
Installer power plug – no opening of control box required
Alarm indication – for easy fault diagnosis
Extra performance – upto 6.5m head
Automatic and manual de-blocking
The Ecocirc Basic is a truly reliable circulator featuring Anti-Block technology, dry-run protection and inrush current limitation. The Anti-Block technology efficiently prevents magnetite to enter the rotor chamber thus prevents blockage even in old systems.
Product details:
High efficiency pump with ECM-technology and permanent magnet rotor
Two control modes:
Automatic proportional pressure control
Stepless manual set a fixed speed
Anti-Block technology
Inrush current limitation
Plug is easily assembled and connected without any tools
Automatic air purge
Delivery: up to 3.2 m³/h
Head: up to 6 m
Power supply: single-phase 50 Hz and 60 Hz
Power: from 10 W up to 50 W
Maximum operating pressure: 10 bar
Temperature of pumped liquid: from -10 °C to 110 °C
The Dab Evosta circulating heating pump is an ideal replacement for old three-speed circulators, as it has the same dimensions of the VA series and as a result, can cover pumps with 4.5M or 6 Meter heads.
Product details:
Operating range: from 0.4 to 3.3 m3/h with head up to 6.9 meters.
Liquid temperature range: from +2 °C to +95 °C.
Working pressure: 10 bar (1000 kPa)
Protection rating: IP 44
Insulation class: F
Installation: with horizontal motor shaft.
Standard power supply: single-phase 1 x 230v
Complies with European Directive ErP
Low energy consumption
The FHS circulation heating pump is a high-quality direct replacement for most heating pumps including Grundfos, Myson, Wilo and DAB and many more. It has 3-speed settings to allow for economic, energy-saving, running and to allow for larger systems it can run up to a 6 metre head.
Product details:
3 speeds for economic quiet running.
130mm flange to flange body
Easy installation and reliable operation
Box contents; Pump Instructions 2 rubber washers/seals
Replaces Myson, Wilo, Grundfos, bosch, boiler m8, British Gas,CBS, Euramo Gold, Evostar, Selectric and many many more.
Easy installation and set-up, accessible through ‘Green Button Technology’. High energy performance is achieved through the proven EC motor technology and precise setting in 0.1m steps. Longer de-blocking routine can be activated manually. Error code indication for fast and efficient trouble analysis.
3-Speed
6m Max. Delivery Head
1 Year Guarantee
Energy Rating: A++
3.5m³/hr Q Max. Flow Volume
40W
1″ BSP Connection
IPX2D
High-efficiency circulator pump with permanent-magnet motor (ECM technology) fit for the ErP directive. Due to continuously variable speed control for the circulation of clean heating water according to VDI 2035.
Product details:
Complying with requirements of the ErP directive as from 2015.
1 pump replaces 3 variants.
It is available as pump head without pump housing. Fits on all 4-m, 5-m and 6-m pump housings of the Series 100.
For tight installations, i.e. in boiler applications.
High energy savings thanks to an energy efficiency index (EEI) lower than 0.23.
Complies with the German regulation on energy saving in buildings and building systems – Energieeinsparverordnung – EnEV §14(3).
One button for simple selection among three proportional-pressure curves or three fixed speeds.
No corrosion issues thanks to the electrocoating pump housing.
Reduced installation costs as no external motor protection is required