A heating-circulation pump plays an essential role in keeping your home comfortably warm. It forms the heart of the heating system, and ensures that hot water is transported to the heating appliances. This pump also ensures optimal heat control.
- Heating systems
- Energy-efficient circulation pumps
- Setting up the pump yourself
In the past, heating systems with self-circulating systems were very common, but today's systems are usually fitted with a circulation pump. The type of pump depends on the boiler model, and you can opt for a wall mounted gas boiler or a floor standing gas or oil boiler (also known as a free-standing boiler or a floor mounted boiler). A wall mounted gas boiler generally makes use of a special integrated pump that is often produced in cooperation with the boiler manufacturer. The floor standing gas or oil boiler comes in so many models that the pump can be fitted both inside and outside the casing. If the pump is in temperature-reducing mode during the night, it must be connected to the inlet. A heating system can be regarded as a closed system that makes use of an open expansion vessel. These are like pressurised water vessels in which water and air are separated by a membrane, which allows the water within them to expand and absorb shocks.
Energy-efficient circulation pumps
The role of a circulation pump in a domestic heating system is quite simple. It provides the indoor transportation of hot water through the radiators to the kitchen, the shower, and so on. Standard circulation pumps have a fixed rotational speed, with a choice of three settings that can be determined beforehand, but automatic circulation pumps have a variable speed, which is much more efficient.
However, this is not the only reason to opt for an automatic pump. Something else that makes an automatic circulation pump very attractive is that most heating systems have thermostat-controlled taps to regulate the water flow through the radiators. If full heating capacity is required, the valves will open up to allow a full flow of water. However, if a lower temperature is needed, the same valves will close gradually, or stay partly closed. The variable speed ensures that the pressure generated by the pump is never too high, which also reduces energy consumption.
Electronically controlled pumps need to comply with specific European-wide guidelines. For example, these pumps may provide a maximum saving of 80% versus D-label pumps. The return on an investment in a heating system with this pump usually occurs within about two years.
Would you like to replace your current circulation pump with one that is energy efficient? Find your pump in our replacement table.
Setting up the pump yourself
Intelligence and adaptive ability are features that distinguish today's circulation pumps from conventional types. The system behind this circulation pump analyses the heating pattern in a home and adjusts the pump's operation accordingly, which of course depends on the system requirements. If we consider the situation from a technical point of view, we note that the circulation pump checks for the appropriate delivery head in order to keep meeting the system requirements. These pumps consume less energy because the delivery head will never be too high.
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