Advantages and disadvantages of systems with a circulation pump for heating. Advantages of
- High efficiency. Pump applications increase this figure to the maximum.
- Fast warm-up of premises. Since water quickly moves through the system, it does not take long to wait for heat to reach distant rooms, as occurs in systems with natural circulation.
- Easy installation of the system. As the water moves through the pipeline under the influence of the pump, then during installation it is not necessary to observe slopes and take care that there are no sharp turns and unnecessary obstacles.
- Reliability of work. The use of a modern pump will ensure the safety and reliability of the entire system.
Disadvantages of
- Dependence on power supply.
- Payment for electricity. The pump consumes electricity and this entails additional fixed costs.
- High cost of equipment.
Selection of a pump for heating
When choosing a circulation pump, the amount of heat needed to heat the room is guided. You can calculate this figure by special organizations or you can do it yourself. Calculations are carried out according to formulas, and it is possible to simplify this process and take advantage of standard projects.
In European countries, calculations are carried out at the rate of 100 watts per square meter of a house, if there are 1-2 apartments in it, and 70 watts if it is a multi-apartment house. If the room is insulated, the indicator is reduced to 30-50 W.
In the CIS countries, according to SNiP 2.04.07-86 *, it is necessary to adhere to such indicators:
- for buildings less than 3 floors - 173 W per square meter at a temperature of -25 ° C and 177 W per square meter at -30 °FROM.
- For buildings with more than 3 floors - 97 and 101 watts per square meter, respectively.
Pump installation: instruction
The pump can be installed in the heating system by hand. To do this, you will need: American threaded connections, bypass line, check valve, filter and tool kit.
Sequential instruction for installing the pump:
- Select the pump with the appropriate characteristics;
- Circular pump is mounted on a discharge line in front of the boiler;
- Before installation, the boiler is switched off and cut off by shut-off valves;
- We install the pump on threaded connections( so that the device produces less noise during operation, it should be installed horizontally);
- Mount the filter and check valve;
- Install the shut-off valve in case of repair( cuts the device from the coolant).
It is recommended to install the circular pump on the outlet line. This method allows you to create more favorable conditions for the pump to work and prolong its service life, as the coolant will cool down before reaching it, and accordingly the pump will not come into contact with high temperatures.
Conclusions
The installation of a circulation pump into the system is advisable, since such a system will have more advantages than disadvantages. If you make an autonomous power supply, then the shortcomings of the heating system with forced circulation can be minimized.
