Central heating pump
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Filter 8 products
Central heating pump
The central heating pump is often also called a circulation pump or underfloor heating pump. These water pumps are all the same, but they have different names based on their applications. Depending on what you want to use it for and, in particular, its connection size, it will be easy to select the appropriate pump from our product range.
A central heating pump provides heating systems with hot water, and can be found in every house or building with a radiator and/or underfloor heating. If both are present, there will usually be several central heating pumps. Larger houses/buildings often also have several circulation pumps to provide optimal circulation.
We can safely say that the central heating pump is the heart of your central heating or underfloor heating system. Furthermore, it is usually the circulation pump that needs to be replaced if the system does not work, or less optimally. Depending on your installation, the central heating pump is easily found behind the front panel of your central heating system. In most cases, the required size can be found on your current, older pump, which should match that of the circulation pump we supply. If not, you can easily find the brand and serial number in the replacement table. If you want to replace a central heating pump yourself, our explanation below will show you what to do.
We have opted to include three different central heating or circulation pumps in our range of products. These three sizes enable us to suggest a replacement pump for any installation, instantly saving you energy costs. Read more about this below. Replacing a circulation, central heating, or underfloor heating pump is not very difficult, and will save you money because you do not need to call in a fitter. Check the step-by-step explanation and/or video at the bottom of this page. Of course, you can also have the central heating pump installed by a professional, but you will save significantly if you order it from us at a competitive price. In that way, you only need to pay for the fitting costs.
The only purpose of a circulation pump is to circulate water within a closed circuit. It is installed inside or next to the central heating boiler and fitted directly between the water pipes. The pump is supplied with cold/lukewarm water. Depending on the required temperature in the house/building, the water will be heated in the boiler. The circulation pump will then pump the water - heated or not - through the pipelines by rotating the impeller (vanes) at a certain speed. Older, conventional circulation pumps usually have three adjustable speeds: the higher the speed, the higher the pump's energy consumption will be. New circulation pumps (e.g. the DAB Evosta) are fitted with an integrated speed controller, which automatically controls its rotational speed, and does not restrict the pump to the three speeds at which conventional pumps run. This ensures an average saving of 70% in annual energy costs. This makes it even more interesting to look for an economical circulation pump.
The central heating pump is one of the largest energy consumers in your household, because it usually needs to run continuously to enable water circulation. Conventional circulation pumps, which can be found in 80% of the houses, consume about 450 kWh in energy a year. The models we carry, the DAB Evosta circulation pumps, are highly energy efficient, have a type A energy rating, are speed controlled, and use only about 135 kWh in energy a year. This comes down to a 70% or £ 78.75 saving in energy costs per year. Consequently, if you decide to buy the DAB Evosta, the pump will pay for itself within about 2.5 years, and that is when you start saving considerably. We often speak on the telephone to people whose central heating pump has already broken down. However, it may be more profitable if you replace your central heating, circulation, or underfloor heating pump before it actually breaks down. You can begin saving immediately.
All circulation pumps, even if they are several decades old, can be replaced directly with a model from the DAB Evosta line, which comes in three different versions. In this way, you immediately start saving energy. The only important thing is to know the brand and type of your current circulation pump, which you can look up in this replacement table before you check which DAB Evosta pump is suitable to replace it.
A circulation pump can easily be replaced by any handyman who knows how to handle water pump pliers, even if they need to be borrowed.
Follow the following replacement steps:
- Turn off the water supply in your central heating pipes
- Unplug the boiler and circulation pump
- Using the water pump pliers, undo the two swivels
- Push them apart and remove the current circulation pump
- Put the new circulation pump between them, noting the pump's direction of rotation (see arrow on the side of the pump body)
- Fasten the two swivels using water pump pliers
- Plug in the boiler and the new circulation pump
- Turn on the water supply
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