Private houses with central heating are equipped with circulation pumps, thanks to which it is possible to evenly and quickly warm up the coolant in different parts of the house, while saving thermal energy.
The main purpose of this device is to move liquid in a closed circuit; it operates from an electrical network, so it will work effectively only if there is a current of 220 watts. Today's rating of the 7 best models of these devices will help you determine your favorite and make a successful purchase.
Content
- Kinds
- Advantages and disadvantages
- Rating of the TOP 7 best circulation pumps Grundfos UPS 25-40 180
- VORTEX CN-25-6
- Gilex "Compass" 25/40
- Grundfos ALPHA2 25-40 180
- WCP 25-80G
- DAB EVOTRON 40/180
- DAB A 110/180XT
- Cheap - VORTEX TsN-32-6
DAB PUMP SpA
The Italian company DAB PUMP SpA began its activities in 1975 with the production of a simple line of circulation pumps.
Today, various modifications of pump equipment are presented in trade catalogs. The scope of which covers various sectors of human life. The company's own structural divisions (from foundry to assembly line) allow it to produce competitive products on the world market. The official entry into the post-Soviet space dates back to 1995. In the Russian Federation, the company offers its customers not only an impressive range, but also a proprietary two-year warranty. Warranty and subsequent maintenance of equipment is entrusted to a developed network of authorized service centers throughout Russia. Some DAB PUMP SpA models
| Model | Pressure, m / volume, m³/h | Power by operating modes, W | t coolant, C | t environment, C | Installation method / pipe diameter, (inch) | Serviced circuit, m | price, rub. |
| A 56/180 XM | 6.2 / 12.5 | 294 | -10…+110 | 0…+40 | Thread / 2 | 100 | 10953 |
| VA 55/130 | 5.4 / 3.6 | 36-58-70 | Thread /1½ | 90 | 3749 | ||
| EVOPLUS 110/180 M | 11 / 12 | 170 | Flanges | 180 | 24193 |
Watch a promotional video from DAB PUMP SpA:
Kinds
There are only two types of circulation pumps; they differ in their design, namely in the type of rotors: dry and wet.
- Dry rotors are distinguished by a high level of efficiency (from 80%) with regular maintenance, have a fairly short service life (only 3-5 years), and produce a lot of noise during operation.
- Models with a wet rotor do not have very high efficiency, it does not exceed 50%, however, they do not require constant maintenance. In addition, such devices have a good service life (10 years) and are practically silent. Which option is better is up to you to decide.
Pump selection methods
The most correct way is to make a full hydraulic calculation and accurately determine the main parameters of the pump - the developed pressure and productivity. This is exactly how centralized heat supply is designed for apartment buildings and industrial buildings.
Not all craftsmen involved in the installation of autonomous water systems are proficient in engineering calculation methods, let alone ordinary homeowners. How can you choose a circulation pump for heating in a simpler way:
- In case of replacing an old worn-out unit, a new one with similar parameters is purchased. The price and quality of the product come to the fore.
- Order a home heating system project from a heating engineer. Below we will explain the advantages of this option.
- Calculate the required pump pressure yourself using a simplified method.
- Trust the long-term practice of our experts and buy the device, guided by their advice.
Boiler room made by our expert Vladimir Sukhorukov. Convenient access to all equipment, including pumps
Expert recommendations. In country houses and apartments with an area of up to 250 m², a household pump that develops a pressure of 4 m of water column or 0.4 Bar is quite sufficient. For a square area of 250...500 m², it is better to buy a more powerful unit with a pressure of 6 m (0.6 bar), over 500 m² - 8 m of water. Art.
Ordering engineering calculations and design development costs money, but will pay off with interest. When you install heating yourself or hire workers, components and equipment are purchased with a decent supply - just in case. An intelligent designer will clearly justify why it is necessary to install a low-power pump and a pipe of a smaller diameter. The result will be savings on materials, and subsequently on electricity costs.
Types of pumps used in autonomous heat supply schemes
If you trust only numbers or want to check the installers, choose a heating pump based on your own calculations, using the method below. Don’t forget to check the calculated characteristics of the unit with the recommendations of experts - the result will probably be the same.
Advantages and disadvantages
Like any other device, circulation pumps have their pros and cons.
- Ignoring small flaws in the heating system, such as narrowed areas or the presence of counter-slopes.
- Higher heating speed: the system accelerates within a few minutes and constantly circulates the coolant, due to which the room warms up much faster.
- Reliability and stable operation - the working life of such water pumps is enough for many years.
- Easy to use.
- Increased heating system performance.
- Increased energy consumption.
- The device may stop working due to a power outage. In particular, in severe frosts, such a malfunction can lead to serious consequences. Therefore, we strongly recommend purchasing a generator as well.
- additional costs for installation and upgrading of the device.
What criteria should you use to choose a pump?
A circulation pump is a device that continuously passes coolant fluid through itself at a certain speed, thereby creating conditions for uniform heating and constant pressure in the heating system.
When choosing, take into account the materials of the main elements loaded and subjected to high-temperature heating. The circulation pump includes:
- frame;
- stator;
- rotor;
- a shaft with blades attached to the rotor.
On a note:
When choosing a water pump, you need to pay attention to many indicators and study photos of devices on the Internet.
Pumps vary in:
- power consumption;
- productivity;
- coolant lift height;
- materials from which the housing, rotor and shaft are made;
- permissible temperatures of the working fluid;
- rotor type;
- discharge pressure;
- the level of noise generated during operation.
After the construction of the house, a heating scheme is determined and thermal engineering calculations are carried out. It is at this moment that the necessary pumping equipment is selected.
Rating of the TOP 7 best circulation pumps
We have identified the following best models:
- Grundfos UPS 25-40 180;
- VORTEX TsN-25-6;
- Gilex "Compass" 25/40;
- Grundfos ALPHA2 25-40 180;
- WCP 25-80G;
- DAB EVOTRON 40/180;
- DAB A 110/180 XT.
Let's look at them in more detail below.
Grundfos UPS 25-40 180
Grundfos is a well-known Danish brand, considered one of the leaders in the plumbing equipment market. This device, despite the fact that it consumes only 45 W, produces an excellent maximum pressure (4 meters) and productivity (2.93 m³/h). In addition, the pump has an asynchronous switch and an electric motor. Works in both vertical and horizontal positions.
| View | wet |
| Max. head (m) | 4 |
| Maksim. production (m³/h) | 2.93 |
| Weight (kg) | 2.6 |
Cost: from 5190 to 11211 rubles.
pump for heating system Grundfos UPS 25-40 180
- good level of productivity - 2.93 cubic meters per hour;
- universal device;
- built-in asynchronous electric motor;
- convenient and simple installation;
- economical - consumes only 45 W.
- outdated model of the device.
To be honest, at first I was looking for something cheaper for a long time; I wanted to find a model that would have excellent characteristics and low cost. But this turned out to be an impossible task. I decided to take a device from the leader in the plumbing products market, Grundfos. The pump performs its main task perfectly, there are no complaints, so I recommend it for purchase.
VORTEX CN-25-6
A good circulation pump, absorbing quite a lot of electricity (90 W), nevertheless creating an optimal lifting height (6 m) and having good performance (3 cubic meters per hour). Among the obvious advantages are the durable cast-iron body and the presence of connecting nuts in the device.
| View | wet |
| Max. head (m) | 6 |
| Maksim. production (m³/h) | 3 |
| Weight (kg) | 3.5 |
Cost: from
pump for heating system VORTEX TsN-25-6
- durable and reliable cast iron body;
- The kit includes connecting nuts;
- durability;
- built-in speed controller.
- considerable weight (3.5 kg).
I installed the pump at a car service center: it works with a furnace using waste oil. It functions effectively even during very severe frosts with minimal power - in my opinion, an excellent result for the money.
Gilex "Compass" 25/40
A pump that deserves praise for its durable cast-iron body, excellent technical parameters and optimal price-quality ratio. Apparently, this is why Gilex “Compass” 25/40 is in great demand among buyers. The temperature range of the device is from +10 to +110 degrees.
| View | wet |
| Head (m) | 4 |
| Maksim. production (m³/h) | 3 |
| Weight (kg) | 3 |
Cost: from 2466 to 4600 rubles.
pump for heating system Gilex "Compass" 25/40
- using the switch you can adjust the power of the device (there are 3 speeds);
- simple and convenient installation thanks to the union nuts included in the kit;
- low noise level - only 65 dB;
- reliable device: it does not have complex systems that can quickly break down;
- the service network is well developed;
- good match between quality and cost.
- cable missing;
- At first, during the heating process, the smell of paint is felt.
A fairly inexpensive pump that I have been using for 2 years. Warms up the house very quickly, literally in 40 minutes completely. So the money spent on the purchase is quite worth it. Almost no noise.
Grundfos ALPHA2 25-40 180
ALPHA2 from the previously mentioned famous and time-tested company Grundfos is a completely new line of devices based on the UPS series. The main feature of such a pump is the autoADAPT option, that is, the ability to quickly and flexibly respond to temperature changes.
| View | wet |
| Head (m) | 4 |
| Maksim. production (m³/h) | 2.4 |
| Weight (kg) | 2.1 |
Cost: from 9050 to 19786 rubles.
pump for heating system Grundfos ALPHA2 25-40 180
- built-in night and summer mode functions;
- idle protection;
- overheat protection;
- motor with stable magnets;
- starts quickly after a long period of stagnation (within 10 seconds);
- automatic performance control;
- low noise level 43 dB;
- all main parameters are conveniently located on the front panel;
- minimum weight – only 2.1 kilograms.
- The device is poorly adapted to voltage surges.
My husband and I installed this pump in our house a year ago. Since that time, it has been used without any stop at half power; no more is needed. Works like a clock – efficiently and without any hiccups. An extremely useful autoADAPT function, especially for a beginner.
WCP 25-80G
The next circulation pump model is a worthy competitor to the most expensive luxury devices. What did he do to deserve such high ratings? Firstly, the device is equipped with a powerful motor (245 W), providing high productivity up to 8.5 m³/h. A high-quality pump, a reliable body and an aluminum motor - such a device will serve you long and reliably.
| View | wet |
| Max. head (m) | 8 |
| Maksim. production (m³/h) | 8.5 |
| Weight (kg) | 5 |
Cost: from 4549 to 5010 rubles.
pump for heating system WCP 25-80G
- high productivity (8.5 cubic meters per hour);
- good pressure - 8 meters;
- 3-stage speed regulation;
- engine power – 245 W;
- Durable aluminum motor and cast iron housing.
- noisy (45 dB);
- low quality plastic.
The WCP 25-80G is an excellent pump that does the job perfectly. I'm quite happy with the purchase, I think it will last a long time. Excellent level of performance and pressure - I think it will be difficult to find something like this for that kind of money.
DAB EVOTRON 40/180
DAB EVOTRON 40/180 is a powerful and reliable water pump from an Italian manufacturer. It features advanced electronic rotation speed control and automatic performance control, making the device quite efficient and economical. In addition, the built-in “sleep mode” allows you to save even more energy - the device absolutely pays for itself in the shortest possible time due to its good performance.
| View | wet |
| Head (m) | 4 |
| Max. pass. way. (m³/h) | 4 |
| Weight (kg) | 2.9 |
Cost: from 9510 to 10310 rub.
heating pump DAB EVOTRON 40/180
- low weight – 2.9 kg;
- thermally insulated body;
- minimum energy consumption level - only 27 W;
- automatic speed control;
- Ease of use;
- there is a night mode;
- the pump is protected from overheating;
- built-in frequency converter;
- there are connectors for connecting to the electrical network;
- cast iron body.
- no serious deficiencies were identified.
It took me a long time to choose a pump, as I am new to this business. I bought this device on the advice of the seller. Everything about the device is very simple and clear, it was installed quickly, the body is reliable and durable, there is automatic speed control, and the device is also very economical. I give him a solid 5.
DAB A 110/180XT
The latest model from the same manufacturer as the previous pump. Installed in heating systems, in underfloor heating circuits. The device boasts one of the highest productivity (12.5 m³/h) and the highest pressure (11.1 m) compared to other competitors. The pump operates in 3 different modes - this is very convenient during sudden changes in weather conditions.
| View | wet |
| Head (m) | 11.1 |
| Max. pass. way. (m³/h) | 12.5 |
| Weight (kg) | 7.3 |
Cost: from 18,480 to 18,600 rubles.
heating pump DAB A 110/180 XT
- high level of productivity – 12.5 cubic meters per hour;
- the highest pressure among the rating participants – 11.1 meters;
- 3 operating modes;
- the pumped liquid is clean, chemically neutral;
- rotor made of stainless steel.
- heavy weight - 7.3 kilograms.
I have been using pumps of this brand for more than 15 years and have not changed my traditions. I bought the DAB A 110/180 XT a couple of years ago, updated the old model, and since then the device has been working non-stop, very efficiently and almost silently.
Expensive segment (from RUB 10,000)
Expensive pumps are made of high-quality materials, have automated monitoring and control systems, protection against overheating and blocking currents. They are economical and last a long time.
Grundfos UPS 32-80 180
pros
- Reliability
- Protection of stator and motor windings
Minuses
- High price
From 15,000 ₽
This model of pump for heating private houses is produced in Denmark. It is used in water supply and air conditioning systems, and for underfloor heating. The pressure characteristic is 8 m. The innovative design ensures continuous operation for 10 years.
DAB A 80/180 XM
pros
- Reliable
- overheat protection
- Blind flange included
Minuses
- Works only with clean liquid
- Heavy (4.8 kg)
From 12,000 ₽
Italian manufacturers guarantee long-term operation of this pump for home use through the use of modern materials. The hydraulic unit is made of cast iron, the impeller is made of technopolymer, the motor housing is made of aluminum, the shaft, stator casing and rotor shell are made of stainless steel. The engine operates at three speeds. High technical parameters allow it to be used for heating a large private house: pressure characteristic - 9 m; flow capacity 145 l/min.
Wilo Star-Z Nova
pros
- Protecting pipes from bacteria through thermal disinfection
- Brass body with thermal insulation
- Motor resistance to blocking currents
- Economical
- Repairable
- Compact
- Working in hard water
Minuses
- Pressure characteristic up to 1.1 m
- Working fluid temperature range from 0 to 70 0C
From 10,000 ₽
The German-made pump occupies top positions in the ratings. It is designed for liquid flow up to 0.4 m3/h and is suitable for heating systems of a large private house. A special feature of this model is an improved connecting device, thanks to which the pump is connected to power without additional tools.
Comparison table of the presented models
All of the above technical parameters of each model are presented in the table.
| Model | Type | Head (m) | Max. production (m³/h) | Weight, kg) |
| Grundfos UPS 25-40 180 | wet | 4 | 2.93 | 2.6 |
| VORTEX CN-25-6 | wet | 6 | 3 | 3.5 |
| Gilex "Compass" 25/40 | wet | 4 | 3 | 3 |
| Grundfos ALPHA2 25-40 180 | wet | 4 | 2.4 | 2.1 |
| WCP 25-80G | wet | 8 | 8.5 | 5 |
| DAB EVOTRON 40/180 | wet | 4 | 4 | 2.9 |
| DAB A 110/180XT | wet | 11.1 | 12.5 | 7.3 |
Group ("Wester")
The experience gained during the period of active trading activity of the Impulse Group of Companies (at the end of the 90s of the last century) became the starting point for organizing its own production base in the Russian Federation.
The network of authorized service workshops also developed proportionately. This made it possible to attract the attention of the modern demanding client to the variety of high-quality climate control products (from boilers to fittings) of domestic production. Some models of the Impulse Group of Companies
| Model | Pressure, m / volume, m³/h | Power by operating modes, W | t coolant, C | t environment, C | Installation method / pipe diameter, (inch) | Serviced circuit, m | price, rub. |
| Wester WCP 25-40G | 4 / 2.5 | 30-45-65 | +2…+110 | 0…+40 | Thread / 1 | 66 | 2127 |
| Wester WCP 32-60G | 6 / 2.7 | 46-67-93 | Thread / 1.1/4 | 100 | 2297 | ||
| Wester WCP 25-60G | 6 / 2.7 | 46-67-93 | Thread / 1 | 100 | 2046 |
Watch a video review of the production potential of Impulse Group of Companies:
Best lists
In addition to the previously mentioned models, we recommend paying attention to the following pumps:
- Cheap - VORTEX TsN-32-6.
- Energy saving – UNIPUMP LPA 25-60.
- Quiet operation - Wilo Star-RS 25/4-180.
We invite you to familiarize yourself with their parameters and brief information.
Cheap – VORTEX TsN-32-6
One of the most tempting purchases: excellent technical parameters and a fairly affordable price. The device is considered one of the most affordable options with such excellent characteristics.
High motor power (90 W) allows you to create a pump lift height of up to 7.5 meters, maintaining a productivity of 9 m³/h. The device is made of high-quality cast iron, so this is also reflected in the weight of the device (3.8 kg). In general, buyers were satisfied with this pump, often leaving positive reviews on the forums.
| Type | wet |
| Head (m) | 7.5 |
| Max. pass. way. (m³/h) | 9 |
| Weight, kg) | 3.8 |
Cost: from 2070 to 3199 rubles.
pump for heating system VORTEX TsN-32-6
Energy saving – UNIPUMP LPA 25-60
UNIPUMP LPA 25-60 is a more budget-friendly analogue of Grundfos ALPHA2. A model with a lot of advantages: 5 operating modes, no overheating, low noise level (only 43 dB), ease of use, as well as a high level of protection according to the IP42 standard.
| Type | wet |
| Head (m) | 6 |
| Max. pass. way. (m³/h) | 3 |
| Weight, kg) | 2.8 |
Price: from 5426 to 10761 rub.
heating pump UNIPUMP LPA 25-60
Quiet operation – Wilo Star-RS 25/4-180
The quietest pump on the list is the best - Wilo Star-RS 25/4-180, the noise level of which does not exceed 34 dB. It is in great demand due to its efficiency (the device absorbs only 48 W) and efficiency - the technical characteristics speak for themselves. The pump looks very reliable: durable cast-iron body, stainless shaft - this model will definitely serve for years, with proper use. The only negative is that it can only be installed horizontally.
| Type | wet |
| Max. head (m) | 4 |
| Maksim. production (m³/h) | 3 |
| Weight (kg) | 2.9 |
Price: from 4570 to 10108 rub.
pump for heating system Wilo Star-RS 25/4-180
Grundfos
Pumping equipment from the Danish manufacturer Grundfos has been known in the post-Soviet space since the 60s of the last century.
Since the mid-90s, our own sales office has been opened in Russia. Grundfos entered the new millennium (already as a multinational corporation) with a full-fledged production base in the Russian Federation. At that time, Russia was served by a small authorized service network of the company. Today, all Russians can appreciate the benefits of using world-famous products. There is an impressive assortment, unique solutions, and exceptional service (up to 5 years of company warranty, delivery of spare parts within 24 hours and other bonuses). Some Grundfos models
| Model | Pressure, m / volume, m³/h | Power by operating modes, W | t coolant, C | t environment, C | Installation method / pipe diameter, (inch) | Serviced circuit, m | price, rub. |
| ALPHA3 25-60 180 | 6 / 3.4 | 3…34 | +2…+110 | 0…+40 | Thread /1½ | 100 | 17700 |
| UPS 32-40 180 | 3.9 / 2.72 | 25-35-45 | Thread / 2 | 65 | 6100 | ||
| MAGNA3 25-100 | 10 / 9.3 | 9…151 | -10…+110 | Flanges /1½ | 160 | 39100 |
Watch a video about the Russian branch of Grundfos:
What to look for when choosing
Choosing a circulation pump will become much easier if you pay attention to the following parameters:
- Performance. Different heating systems require a pump with an optimal level of performance. Therefore, the home owner should know the power of the installed boiler. For example, if a device designed for 40 kW operates in the circuit, then the pump should have a throughput capacity of 2.4 m³/h.
- Lifting height. Another important characteristic that you should definitely pay attention to. Experts advise using this simple formula: for 10 meters of pipeline – a pressure of 0.6 meters. Thus, it is not difficult to calculate that a heating main of 100 meters will require a pump with a lift height of 6 meters.
- Stream speed regulation. A fairly useful option, due to which it can independently change the speed of water movement. Some models are equipped with a switch for 2-3 positions; more modern ones have electronic regulators that automatically change the speed. The main thing: the indicator should not exceed 1.6 m/s.
- Power level. Each pump has its own electric motor with a certain power level. The thinner the pipe in the heating system, the more power it should have later. Some models have a power of 100 W, more complex models - 150 W.
- Materials. Pay attention to what materials the parts and components are made from, because this is what affects the service life of the device. Ideally, the body should be cast iron, the impeller and impeller should be plastic.
The best pumps in terms of cost and quality
For efficient heating of houses on 1-2 floors with an average area, it is recommended to use equipment from the middle segment, which is the best in terms of cost, performance and quality.
DAB EVOTRON 40/180
A product from an Italian brand at a price of about 10,000 rubles. The device is specially designed for heating and air conditioning. The company has used modern technology to regulate the speed, so it is automatically controlled electronically, which affects the current consumption and operating efficiency. In addition, you can use sleep mode to save energy.
It is made from a high-quality heat-insulating body, current consumption is minimal, only 27 W. Jet pressure up to 4 meters with a capacity of 4 cubic meters. m/h. This will be sufficient for small areas. The model is reliable and of high quality with convenient operation, but the cost is too high.
pros:
- Quiet operation.
- Availability of electronics for automatic speed correction.
- Minimum current consumption.
Among the disadvantages is the cost of the product.
GILEKS Compasses 32-80
A good pump for heating at a price of about 5800 rubles with excellent technical parameters. Motor with a power of 245 W and a pressure of up to 8 meters. Equipment productivity is up to 8 cubic meters/hour. The technique can be used for buildings of 3 floors.
It comes with a mount and has a 3-speed switch inside to optimize energy costs. Reviews are only positive, the model has the best value for money.
pros:
- High degree of reliability.
- Quiet operation.
- Saves electricity and heat in the house.
- High quality build.
- Excellent technical characteristics.
There are no downsides to this equipment.
Wilo Star-RS 25/4-180
A popular model among owners of country houses. The average market value is about 4800 rubles. It is recommended to purchase equipment for small areas and heating mains. The motor consumes 48 W, while allowing a pressure of 4 meters with a productivity of up to 3 cubic meters per hour.
The device is housed in cast iron, visually very reliable; inside there is a stainless steel shaft, which is characterized by durability. The pump operates very quietly, and the user can switch speeds independently. A German-made model with excellent quality and reliability, but performance is not the best, and installation can only be carried out in a horizontal plane.
pros:
- Long service life.
- High quality and reliability.
- Quiet operation.
- Low current consumption.
- Optimal cost.
The disadvantages include poor performance.
WCP 25-80G (180 mm)
An excellent choice for installation in a single-pipe or two-pipe heating main. The average market value is 4,600 rubles. The total engine power is 245 W, while the productivity will be up to 8.5 cubic meters / hour, and the pressure will be up to 8 meters.
The device is made with high quality, the main components are installed in a cast iron body, the motor is made of aluminum, and is characterized by a long service life. There is a speed controller in 3 modes, which will optimize expenses and heating of the house. The equipment is small in size and weight, so there are no problems with installation. The main disadvantage is loud operation under peak load and plastic parts are not of the highest quality.
pros:
- Small size and weight.
- Availability of 3 modes to regulate operation.
- Optimal cost.
Disadvantages include the noise of the equipment.
Selection by size
You've probably noticed that the range of companies includes units with the same characteristics, but different dimensions and pipe sizes. How to select external pump parameters:
- For installation on pipelines, bypasses and mixing units of underfloor heating, standard blowers with a length of 180 mm are used. “Shorty” 130 mm are installed inside heat generators or on highways in very limited space.
- The diameter of the connecting pipes is selected to match the cross-section of the main pipeline. Increasing the standard size is permissible, but decreasing it is strictly not recommended. That is, a unit with 32 mm fittings can be installed on a DN 25 pipeline.
- Pumps with Ø32 mm nozzles are used on primary rings and boiler circuits, as well as in modernized gravity systems.
The performance characteristics of the pumps do not depend on their installation length - 130 or 180 mm
Note. The dimensions of ready-made bypasses sold in stores are adjusted to fit a standard pump with an installation length of 18 cm.
The number of supercharger speeds does not play a special role. At home, 3 modes are quite enough, the optimal speed is the second. The air from the units is bleed through the side screw, so you should not buy products with a separate air vent.
Manufacturers and prices
Despite the wide range of pumps in stores, it is not easy to choose a truly high-quality product. The market is flooded with Chinese goods and counterfeits of famous brands. First, let's list the popular manufacturers in the CIS:
- The highest price category is Grundfos (Denmark), Wilo (Germany). Prices for original “Germans” start from 75 euros, “Grundfos” UPS series – 65 euros.
- Middle category – DAB, Aquario (Italy), Sprut (quality China). The cost of units of various models ranges from 40-100 euros.
- Other cheap pumps (Oasis, Neoclima, “Whirlwind”, “Caliber” and so on ad infinitum). Price – from 20 euros per piece.
The latest development is the Grundfos Alpfa-3 “smart” pump, which transmits information to a smartphone and helps balance the system
Comment. It is likely that we did not include some very worthy products in the highest or middle price category. The most common brands are listed here.
What is the difference between inexpensive and counterfeit pumps and high-quality superchargers:
- service life – 1…3 heating seasons;
- The product number is only on the sticker, the unit body is clean;
- pumping devices from the same batch often come with the same numbers;
- the weight of the fake is noticeably different from the original (it is lighter);
- A low-quality unit begins to make noise and squeak after working for 1 season in a closed heating system, and the housing gets very hot.
Sometimes counterfeit heating pumps are indistinguishable from the original, only the price is half the price. The secret is in the aluminum winding, which reduces the cost of the product. How to check: find a lot of the original model on the company’s official website and compare it with a market copy. Most likely, an informed seller will refuse to weigh a counterfeit device or will immediately recognize the unknown origin of the product.
