How to choose a circulation pump for heating: making an informed choice

The efficiency of a heating system depends on several factors. The main thing is the uniformity of heat supply through the pipes. This can only be achieved with a productive and high-quality pump.

One of the popular options on the gas equipment market is a circulation pump. Why is it so good - look in our short article right now! Perhaps knowing which circulation pump is best for heating will help you save tens of thousands of rubles.

How to choose a circulation pump depending on the model range

Any circulation compressor has a rotor part and an electric motor for dispersing heat. An impeller rotates through the rotor, sucking in water. From this, the liquid receives pressure and moves smoothly through the pipes.

The placement of the rotor determines what type of pump you have in front of you:

1. The device is based on a “wet” rotor. The element itself, the shaft and the impeller are completely under water. The starter is separated by a special glass to prevent water from getting into the motor itself. “Wet” pumps are distinguished by their low noise level - the operation of the compressor is almost silent and does not emit unpleasant vibrations. True, one cannot do without shortcomings. This is its efficiency - about 60%, no more.
2. "Dry" rotor. The element is not absorbed by water and does not come into contact with it. The difference from the previous version is also in performance - 80% or more.But here there is no noise, because the water does not dampen the movement of the rotor. Another drawback: installation without knowledge and experience is like looking for a needle in a haystack. Not sure it's going to happen.

How to choose a circulation pump and not make a mistake? Consider the scope of application of the devices: “dry” - for large volumes of water, so it is suitable for industry, because it is already noisy there. For home use, a compressor with a “wet” element is sufficient.

How and according to what parameters to choose a circulation pump for heating

We won't stop at varieties. Now let's go into the technical part: what should be and what should not be in circulation motors:

• Mains voltage. There is a network of 220 V (single-phase) and 380 V (three-phase). In most cases, you will only encounter single-phase networks, since the latter are more in demand in production. A regular circulation pump is purchased for network 220. If the power is not enough, install a 380 network, but this will cost much more than the usual option. You have to pay for everything.
• Water temperature indicator. Older samples of “circulars” are characterized by heating to high temperatures – about 90 degrees. Now this figure can be increased even more - the devices give out 110 or more. The higher the temperature the pump can withstand, the better the quality of the materials. Accordingly, the model will last longer.

• Size indicator. This is important during installation, since you can hardly install a large “colossus” in a one-room apartment. Pay attention to both the dimensions of the pump and its connections. The latter can sometimes take up more space than the compressor itself.
• Protection against energy surges and moisture ingress. On the device it is indicated by class from 1 to 4 with the mark IP.Consists of two numbers, 44 is the maximum for the circulation pump.
• Manufacturer. An important factor: trust a manufacturer with experience and authority or take a risk and buy from an unknown one, but at half the price? We are not advisors here. We can only recommend one thing: choose a device with a warranty of 1 year or more. Otherwise, you can only protect yourself with experience and knowledge of how to choose a circulation pump.

Summary

In recent years, heating prices have skyrocketed, but you still want warmth. Although even with an overpayment for heating, you are unlikely to get anything worthwhile from the utility companies. Therefore, you have to look for all the ways to increase the efficiency of your heating network. One of these is the correct choice of a circulation compressor, about which we have described all the available information.