Grundfos circulation pumps for home heating

Currently, the vast majority of heating systems have forced circulation of the coolant. It is caused by the fact that the efficiency of such structures is disproportionately higher than that of the variant with natural circulation.

Apart from the boiler itself, the circulation pump in such constructions is almost the main node. The leaders in this market segment are circulation pumps for Grundfos heating.

A few words about the manufacturer

The global concern Grundfos was founded about seventy years ago in Denmark. In a war-torn Europe, there was an acute shortage of such equipment. Danish engineers were able to develop a number of inexpensive and reliable units, so they quickly gained a leading position in the market.

At the moment, the company's interests extend far beyond Europe, according to some estimates, it takes about 50% of the production of pumping equipment worldwide, which is about 16 million units per year. More than 85 subsidiaries are based in 45 countries of the civilized world.

As for our country, this brand has been known for quite some time. During Soviet times, such equipment was purchased, but only for industrial purposes.

With the collapse of the USSR, the Grundfos concern firmly occupied major positions in most areas in the field of pumping equipment. In particular, circulation pumps for Grundfos heating systems are rightfully considered as sales leaders.

What is the secret of popularity

It is no secret that it is extremely difficult to stay on the current market. But this world concern for many years, not only did not lose the position, but also increased sales.

General characteristics

The circulation pump for heating Grundfos prefer to install the owners, who appreciate the quality and reliability of the equipment. In the product line of this company a large number of different models.

The pumping unit Undfos for heating is only one of the directions, there are dozens of equipment modifications themselves.

Tip: the correct choice of the unit responsible task. Each model is designed for its own operating conditions, so before buying it is advisable to consult a good specialist in detail, preferably from an authorized dealer of the company.

• Compared with counterparts from other manufacturers, the circulation pump for heating Grundfos, has a significantly lower weight. The sizes of these units can pleasantly please any picky owner. They do not spoil the appearance of the room, which is especially important in cases where the equipment is mounted directly in a residential area, for example, in a kitchen.
• A distinctive feature of this equipment is that the noise level during operation is extremely low. Plus, there is practically no vibration in these units. This suggests that the component assemblies and construction details are fitted with high accuracy.
• The price of energy in the modern world is constantly growing. From this point of view, Grundfos heating units are the best option. In terms of efficiency, they leave the majority of competitors far behind.

• The instruction to compact pumps for small heating systems in private construction does not require deep special knowledge during installation and may well be made by hand.
• If the unit itself was chosen correctly, installation and configuration will not take much time.. Description of step-by-step actions, in any device contains clear recommendations. In fact, there are very few manual settings in the device, most of the parameters are set and controlled automatically, without human intervention.
• A number of important characteristics should be considered when choosing. Each unit is calculated for a specific temperature, so you need to immediately find out which delta or temperature camber is assumed.
• To correctly calculate the hydraulic losses during operation, you need to pick up a pipeline with a diameter recommended for this type of pumps.
• And finally, one of the most important rules in the selection of equipment states that through the system, the entire volume of coolant must pass at least three times within an hour.

Tip: if you want to increase the efficiency of the system with the natural circulation method by about a third, you need to install a circulation pump for heating Grundfos on the return flow pipe of the heat carrier.

Varieties of aggregates

Despite the rather large range, all units can be divided into two main types, these are instruments with a wet and a dry rotor. It cannot be said that some of them are better or worse, just all of them are intended for their own purposes.

As the name implies, the case of the apparatus with a wet rotor is filled with water or used coolant. The impeller is located directly in the fluid.

Such pumps have proven themselves better in small volumes. The efficiency of instruments with a wet rotor is about 50%. They can be fully or partially controlled by automation.

A distinctive feature of devices with a wet rotor is their strong sensitivity to the quality of the fluid they pump. Aggressive coolant additives can lead to clogging and breakage of the pump. Plus they do not like cold water.

The rotor of dry pumps is hermetically sealed from water by a system of stuffing boxes and plugs. Such devices are distinguished by sufficiently high power and high efficiency.

Initially, they were developed for serious heating systems in industrial buildings. Now there are options for private construction, but again, adjusted for the fact that the cottage should be large.

Dry aggregates have a slightly higher noise level. Plus, these systems are equipped with forced ventilation to cool the engine. With regard to automation, here as well as in devices with a wet rotor, there are several options for configuration.

Important: whatever the circulation unit you choose, on any heating system near it, experts recommend installing filters. This will significantly increase the life and safety of the pumps.

The video provides additional information on Grundfos pumps.

Conclusion

The heating system of a private house, however, like any other, is installed for a long time. Grundfos circulators for heating all over the world enjoy a good reputation, so you should not save on such an important node (see also the article Installing a circulating pump in the heating system: features of self-execution).