Installation of a pump for heating a private house

To effectively operate a private house heating system, it is sometimes necessary to resort to installing additional equipment. The boiler, pipes and radiators are sometimes not enough to ensure an adequate level of heat with minimal fuel consumption. One of these additional units is a circulation pump. Installation of this equipment will help to significantly increase heating efficiency and reduce costs. And how to install the pump for heating a private house will be discussed in this article.

What are the types of equipment

When designing a home heating system, it is not necessary to include a circulating pump in it. Everything can work fine without this additional unit. But the pump provides significant advantages:

• Firstly, its installation ensures normal circulation of the coolant. If the heated water moves by gravity through the system, then it will reach hot radiators to some radiators, and even to the farthest heating devices with a significantly lower temperature. Installation of the pump allows you to evenly heat all elements of the system.
• Secondly, the inclusion of the pump in the system will facilitate its installation. This unit allows you to not observe the slope of the pipes. The pump itself will circulate the coolant, so it is not necessary to measure out all the parameters.

But the use of additional equipment has negative sides. The pump is powered by electricity. This feature causes additional costs for the heating system, while making it volatile. If the power goes out, it may be cool in the house.

Despite small drawbacks, circulating pumps are widely used in heating systems of private houses. And what are they? At its core, the unit uses an electric motor housed in a stainless steel body. In addition, the device is equipped with an impeller, which circulates the coolant in the system.

• dry;
• wet

In the first case, the unit is equipped with a sealing partition that prevents water from getting inside. Such pumps have high efficiency - up to 80%, but not without their drawbacks. First, dry-type devices are more demanding to service. Secondly, such pumps are very noisy, so they are installed in a separate room.

Devices that work on the wet principle, do not need careful maintenance and do not emit loud noise. In this case, the impeller and the rotor of the motor are placed in the coolant, which additionally plays the role of lubrication and cooling. But these devices also have their drawback - this is low, compared with the previous version, work efficiency (only about 50%).

Assembly work

Now let's talk about how to put the pump in the heating system. At the very beginning, you should choose the right place for installation. The unit must provide rapid movement of the coolant from the boiler to all radiators. As a rule, regardless of whether a two-pipe or one-pipe heating system is used, the circulation pump is mounted near the boiler on the return pipe.

Quite often for the home systems are used devices that operate on the wet principle. The very course of work on installing the unit with your own hands will look like this (consider an example of mounting on an already operating system):

• First of all, the boiler stops and the coolant is drained. If the system has been working for many years, then it is worthwhile to hydrotreat all pipes and radiators.
• In the area chosen for the installation of the circulation pump, we make a bypass or bypass. This additional detail is necessary for the entire heating system to operate when the unit is turned off or broken and even removed. When arranging the bypass we use pipes of smaller diameter than the others.
• We make installation of the pump. When performing this work, it is necessary to carefully monitor the orientation of the unit. The fact is that pumps operating on the wet principle need to be completely immersed in the impeller and rotor coolant. If this does not happen, then their effectiveness is significantly reduced. In addition, the unit increases in wear, because the coolant is a lubricant for all parts of the device.
• Next, install additional items. On the inlet and outlet pipe of the pump must be mounted ball valves. They will provide the ability to remove the unit for repair or maintenance. In addition, at the inlet, install a filter that will prevent the ingress of suspended particles into the unit and prolong its service life.

After that, all connections are sealed with a silicone sealant, and the system can be started. It is worth remembering that in order to work effectively it is necessary to deflate the air, and this should be done every time before turning on the circulation pump.

Video

This video shows the installation of the GRUNDFOS circulating pump in the heating system:

A photo