11 best circulating pumps

Modern heating systems of private houses are equipped with circulating pumps. Thanks to this inexpensive device it is possible to quickly and evenly heat the coolant in different parts of the house, saving heat energy. The main task of the device is to move the liquid in a closed circuit. Powered by an electric network, so the pump will benefit only if the current voltage of 220 V. When choosing a circulation pump it is necessary to know a few important points.

How to choose a circular pump

1. Varieties. Two modifications are available for sale, which differ in design. Models with a dry rotor feature a high efficiency (up to 80%), but require regular maintenance, their service life is short (3-5 years), and during operation they emit a loud noise. The pumps with wet rotor efficiency is at the level of 50%, but they do not need service, service life reaches 10 years, during operation the equipment is almost not heard. Those who are sensitive to noise, it is better to give preference to models with a wet rotor.
2. Capacity. Different heating systems require a pump with optimal performance. The homeowner needs to know the capacity of the boiler installed in the system. If the circuit operates a heating device for 40 kW, the pump must provide a flow capacity of 40 l/min (2.4 cubic meters per hour).
3. lifting height.The next important characteristic of circulating pump is head (lifting height). Experts recommend sticking to a simple formula. For 10 m of the pipeline requires a head of 0.6 m. It is easy to calculate that for 100 meter long heating line circulation pump with lifting height of 6 meters is suitable.
4. Adjustable flow speed. A very useful option in the pump will be the ability to change the speed of water. Some models have a mechanical switch for 2 or 3 positions. The user selects the optimum mode based on the room temperature. More modern devices are equipped with electronic regulators that change the speed automatically. The maximum value must not exceed 1.6 metres per second.
5. Power. In each circulating pump there is an electric motor with a certain power. The thinner are the pipes in the heating system, the more power is necessary for the motor. Otherwise the pump will not be able to overcome the hydraulic resistance in the pipe. For small circuits, power up to 100W will be sufficient, and complex systems are equipped with models with motors more than 150W.
6. Coolant temperature. Each heating system has its own temperature conditions. If you are using a gas boiler water is heated to +80 ° C, while in systems with a solid fuel boiler coolant reaches a temperature of +110 ° C. It is important to pay attention to the lower temperature limit in case of irregular heating of the house in winter. Homeowners fill the system with antifreeze, which does not freeze at. In this case, the pump should maintain operability at -10°C.
7. Materials. To keep your pump running long and to your satisfaction, you need to know what materials are used to make the critical parts. Casing ideally made of cast iron, impeller and impeller of high quality plastic.
8. Connection size. When tapping a circulating pump in the main, it is important to consider the diameter of the pipes. Cylindrical pipe threads in inches, e.g. G1, G2 or G3/4. You can also find the port size in the data sheet.

We have selected the 11 best circulators in our review. All are endorsed by the expert community and have earned high praise from consumers.

Rating of the best circulating pumps

The best inexpensive pumps for heating systems

With small heating systems or water supply lines can cope budget circulators. Among inexpensive models there are many worthy samples. Here are the best ones.

VICHR TSN-32-6

Rating: 4.8

Very tempting purchase for heating systems of private homes is a pump VICHR TSN-32-6. It perfectly combines affordability and excellent performance. Thanks to the high capacity of the electric motor (90 W), the pump creates a lifting height of 7.5 m and the output reaches 9 cubic meters. m/h. The device can operate over a wide temperature range (-10…+110 ° C), it is characterized by strength and reliability. The cast iron body of the pump is reflected in the weight of the equipment (3.8 kg).

On thematic forums you can rarely meet the negative reviews, most often it is a single case of marriage. In general, domestic consumers are satisfied with the technical characteristics and the low cost of the pump. The winner of our top picks.

Advantages

• affordable price;
• good pressure
• high performance;
• reliable design.

Disadvantages

• The pump failures during the warranty period were noted.

Leberg GRS 25/4 (180 mm)

Rating: 4.7

Norwegian Leberg GRS 25/4 (180 mm) circulation pump works quietly. Although it is assembled in China, but, experts and consumers have no complaints about the quality. The device consumes electricity economically enough (88 W), it is made reliably, as evidenced by the cast-iron housing and the graphite bearing. The unit weighs only 2.5 kg. The pump loses to the leader of the rating in components such as maximum head (4 m) and flow capacity (3 cc. m/h). The pump can circulate coolant with a temperature from -10 to +110 ° C.

Homeowners liked the affordable price of the Norwegian-Chinese product, its trouble-free operation, the lack of noise. During water pumping no vibration and rattling occurs.

Advantages

• reasonable price;
• noiseless operation;
• efficiency;
• reliability and durability.

Disadvantages

• modest capacity.

Grundfos UPS 25-40 180

Rating: 4.6

Danish brand Grundfos is a recognized leader in the sphere of sanitary equipment production. Compact and lightweight pump UPS 25-40 180 consumes only 45 watts, while giving a maximum head of 4 m and a flow capacity of 2.93 cubic meters. m/h. The model is equipped with an asynchronous electric motor and a switch. The unit can operate both horizontally and vertically. Install the device is allowed in both closed and open heating systems.

In reviews, users praise the pump for reliability, durability, quiet operation and efficiency. Some homeowners circulating pump is working for more than 10 years. Since the model is somewhat outdated (while its price is the highest), the experts gave it the third place in the rating.

Advantages

• quiet operation;
• economical power consumption;
• universality;
• asynchronous motor.

Disadvantages

• outdated model;
• high price.

VICHR CH-25-6

Rating: 4.5

Another model of the brand Vihr made in our rating. The pump TsN-25-6 stopped in a step from the pedestal, despite the most tasty price. The device consumes quite a lot of electricity (90 W), creating a lifting height of 6 m and a capacity of 3 cubic meters. m/h. But the main problem of this product experts consider high noise level. The circulation pump can be installed in the heating system only vertically. The reliable cast iron casing, the availability of coupling nuts in the kit are among the advantages of the device.

According to Russian consumers, VICHR CH-25-6 deserves praise for its low price, reliability, speed regulator and performance. Some homeowners expressed their dissatisfaction with only vertical installation and decent noise during operation.

Advantages

• low price;
• reliability and durability;
• cast-iron body;
• performance.

Disadvantages

• heavy weight (3.5 kg);
• high power consumption;
• noisiness.

The best circulating pumps for heating in terms of price-quality ratio

The pumps with good head and capacity can maintain the required level of coolant circulation in a one- or two-storey house. The optimal combination of reasonable price and good technical parameters have the following models.

JILEX Circle 32-80

Rating: 4.9

Excellent cost to performance ratio has a circulation pump JILEX Circulus 32-80. Thanks to the powerful 245W electric motor, the pump has a maximum head of up to 8 meters and a pumping capacity of 8 cu.m. m/h. The model works perfectly in heating systems in private homes (up to 3 floors). Corrosion-proof fastening nuts are included. Three-speed switch allows economical use of electricity, selecting the best mode for your heating system. The experts gave the model first place in our rating.

Users have no particular complaints about the operation of the pump, it has the best value for money. The device works reliably, quietly and efficiently.

Advantages

• economy of heat and electricity;
• high-quality assembly;
• noiseless operation;
• reliability.

Disadvantages

• Can not be detected.

WCP 25-80G (180 mm)

Rating: 4.8

Practically not inferior to the winner of the rating pump WCP 25-80G (180 mm). It is suitable for installation in one-pipe or two-pipe heating systems. The model is equipped with a powerful motor (245 W), which provides productivity from 0,5 to 8,5 cu.m. The liquids flow over a working width of 0.5 m/h and a head of 0.5 to 8.0 m. The pump is made well, cast-iron housing and aluminum motor make the device durable. Thanks to the three-position regulator, users can choose the desired mode of operation. The strengths of the pump can be attributed to the compactness, which simplifies its installation.

In general, homeowners are satisfied with the reliability, availability and durability of the pump. The product could not bypass the leader of the rating because of the strong noise at maximum speed and poor-quality plastic.

Advantages

• compact size
• low weight;
• three-position regulator;
• affordable price.

Disadvantages

• noisy operation.

Wilo Star-RS 25/4-180

Rating: 4.7

Popular with homeowners German pump Wilo Star-RS 25/4-180. In only 2 months 2187 people were interested in it on NM. The model is designed for small heating systems. The device consumes only 48 watts of electricity, delivering a maximum head of 4 m and a flow capacity of up to 3 cu.m. m/h. The model looks reliable, cast iron body and stainless steel shaft will ensure a long life. The pump has earned high estimates from experts for quiet operation and speed switch availability.

Users praise the German device for its reliability, quiet operation and low power consumption. To rise higher in the ranking of the pump failed due to limited performance and only horizontal installation.

Advantages

• reliability and durability;
• quiet operation;
• economic consumption of energy;
• affordable price.

Disadvantages

• modest performance.

DAB EVOTRON 40/180

Rating: 4.7

The Italian DAB EVOTRON 40/180 circulation pump is designed for air conditioning and heating systems. The manufacturer has applied the advanced electronic speed control. Thanks to this the pump capacity can change automatically, which has a positive impact on energy efficiency. Power saving mode with “sleep mode”; – automatic speed regulation. Experts note the presence of thermal insulation of the housing in the kit and the minimum power consumption (27 W). The maximum pressure is 4 m, and the flow capacity is limited to 4 cubic meters. m/h.

Users are satisfied with the quality and reliability of the circulation pump, it is easy to use. The disadvantage of the device is a high price, because of which the model is located outside the pedestal rating.

Advantages

• quiet operation;
• Automatic speed adjustment;
• low power consumption;
• quality assembly.

Disadvantages

• high price.

The best circulating pumps for heating with high efficiency

In multi-storey cottages, a uniform heating system heating is provided by pumps with high efficiency (from 6 cu. m/h). Experts highlighted several quality devices.

DAB A 110/180XT

Rating: 4.9

The Italian pump DAB A 110/180 XT finds the widest sphere of application. It is installed in heating and air conditioning systems, in the contours of the underfloor heating. The model demonstrates high capacity (12.5 cubic meters per hour); high efficiency. Three operating modes (1.6 m/hour) and the highest head (11.1 metres) among the competition. A powerful electric motor (403 W) provides these record-breaking figures. The minimum temperature of the coolant can reach -10°C. For the manufacture of the body the manufacturer used cast iron, the motor is made of aluminum, and the impeller is made of technopolymer. Circulation pump can operate in three modes, which is convenient when the weather changes.

Users note the high power of the Italian device, its reliability and durability. The only disadvantage is the high weight (7.3 kg).

Advantages

• high performance;
• great pressure;
• quality materials;
• three modes of operation.

Disadvantages

• high weight.

Grundfos UPS 32-80 180

Rating: 4.8

Is just slightly inferior in performance winner of the rating Danish pump Grundfos UPS 32-80 180. It can be used in heating systems, where the role of coolant is a year or glycol-containing fluids. High-performance device has a good capacity (11 cubic meters per year); – High-performance device has a good flow capacity (11 cubic meters per year). m/h) and the head (7.5 m). The pump can operate in three modes, the protection of the motor from overheating is provided. The pump body is made of cast iron, which is protected against corrosion by paint coating. Quiet running thanks to ceramic bearings.

The model takes second place only due to more modest performance indicators. Users have no complaints about the reliability and long life of the pump.

Advantages

• easy assembly;
• high flow capacity;
• noiseless operation;
• reliability and durability.

Disadvantages

• minimum fluid temperature (+2°C).

Wilo Star-Z 20/7 CircoStar

Rating: 4.7

German quality combined with an affordable price and compact size allowed the pump Wilo Star-Z 20/7 CircoStar in the top three ratings. The lightweight unit (2.8 kg) shows a lifting height of 6 m and a pumping capacity of up to 6 cubic meters. m / h, economically consuming electricity (146 W). The pump can operate in a wide temperature range (-10…+110 ° C), so the product is installed in systems supplying cold water, heating and air conditioning. The pump is distinguished by its reliability and durability, this is achieved by the bronze housing, graphite bearings and current-resistant blocking motor.

Homeowners consider the strengths of the pump quality assembly, compactness and lightness. The disadvantages include a large number of fakes on the domestic market.

Advantages

• high quality;
• reasonable price;
• A wide range of applications;
• lightness and compactness.

Disadvantages

• a lot of fakes in Russia.