Payment for central heating is the “lion’s share” of all utility costs. Real savings in paying bills for the received heat can be achieved by installing a heat meter on the heating system in the apartment.
The technical and economic aspects of the selection and installation of individual heat meters will be discussed in this publication.
An individual heating meter for an apartment is a small device installed on the supply pipe of the heating system of a dwelling. Based on the analysis of data on the volume of the heat carrier, its temperature at the inlet and outlet of the dwelling, the heat meter records the consumed heat for the reporting period or the period of time specified by the contract.
Benefit: the consumer does not pay for heat losses during its transportation and distributionand. In addition, on the basis of the order of the Cabinet of Ministers of the EU No. 354, payment for the provided heat (without a heat meter) is calculated with a coefficient of 1.5.
Important! Unauthorized installation of an individual heat meter is associated with interference with the central heating system, which is not the property of the owner of the apartment. These actions without approval and acceptance of the device by the service provider are illegal and lead to administrative liability and penalties.
Before you purchase and install an individual heat meter for an apartment for heating, you need to know which device to choose specifically for your heating system based on its design features, temperature and quality of the coolant, as well as other important factors. Today, four types of heat meters are available to domestic consumers.
According to the design of the metering mechanism, these devices can be screw, turbine or wedge. The flow meter of mechanical (or, as experts call them, tachometric) heat meters takes into account the amount of coolant entering the apartment.
The design of this type of device includes:
The main advantage of devices of this type is the relatively low cost. The disadvantages of tachometric heat meters are:
- Low accuracy, especially at low coolant flow.
- Sensitivity to the presence of mechanical impurities and a large amount of dissolved salts in the coolant.
Based on the shortcomings, it can be concluded that mechanical heat meters in old heating systems are short-lived if “hard” water is used as a coolant.
The principle of operation of metering devices of this type is to change the magnetic field strength when a coolant flows through it.
Advantages: high measurement accuracy and stability in operation.
The disadvantage is the possible measurement error:
- due to an external magnetic field.
- The presence of impurities in the coolant.
- Oxidation of the contact group.
It is impossible not to mention one more drawback, which is decisive for our compatriots — this is the high cost of devices of this type.
Vortex type meters
Vortex heat meters for heating for an apartment are a subspecies of tachometric metering devices. The heat consumption is calculated based on the analysis of the vortex flows obtained when the coolant passes through the obstacle.
Advantages: perfectly work with the heat carrier of any rigidity.
Disadvantage: inaccuracy at high air concentration in the heating circuit.
This type of device measures the amount of coolant by means of ultrasound passing through a liquid stream. These devices are unpretentious in operation, have high accuracy and reliability. That is why ultrasonic heat meters are recommended for use by heat supply organizations.
An error in the readings can provoke the presence of air bubbles and mechanical inclusions in the liquid.
There is another variety that cannot be ignored — the proportionalizer. This is a miniature, programmable, attached device that calculates the heat consumption by analyzing the surface temperature of the heating device and the air temperature in the heated room. The use of these devices is described in the video:
How much does a heating meter cost in an apartment:
- Tachometric: The average cost of models is within 100 $.
- Electromagnetic. The price varies from 32 0 to 400$.
- Vortex. The cost depends on the manufacturer and is in the range of 9 — 120 $.
- Ultrasonic. The price depends on the type of device and its manufacturer. The cost of models varies from 1.5 0 to 160$.
Features of installing a heat meter
How to install a heating meter in an apartment? The answer to this question depends on the layout of the heating system: a heat supply company may refuse to develop specifications if a heating system with vertical risers is implemented in an apartment building, and even located in different rooms.
With this wiring option for heat metering, it is necessary to install a meter for each riser, and these are:
- Unfavorable for the landlord.
- It is unprofitable for a heat supply organization, which loses part of the thermal energy produced by a vertical pipeline (risers).
Before installing the heat meter, it is necessary to complete some formalities, namely:
- Application to a company providing heat supply services. In principle, there is no law prohibiting the installation of heat meters in an apartment. However, there is also a technical side of the issue. If the possibility of installing a heat meter exists, then the specialists of the heat supply organization will develop specifications.
- Ever since. conditions, you must contact the design organization. For your hard-earned money, a project will be developed, which must be agreed with the heat supply organization.
- After agreement, you need to find a contractor company that has permission to perform these installation works.
- After installation, you should again contact the service provider and hand over the metering device to them, concluding a contract for the payment of consumed heat.
Tip: if you are not ready to go through so many “circles of hell”, we recommend contacting an office (they are often organized on the basis of heat supply companies) that performs all types of services at the same time: sale of heat meters, design and coordination. Expensive, but fast and without a “headache”.
The following documents regulate the installation, calculation methodology and payment for heat by private individuals: Europe Law No. 261 and Resolution of the Cabinet of Ministers No. 354. If you do not go into legal subtleties, then a European who wants to reduce heating costs should know the following: the readings of the metering station are taken into account only if all 100% of the heated premises of your house are equipped with heat meters, at the entrance of which there is also one common house heat meter.
And as a conclusion: The quality of the services provided for heating leaves much to be desired. As you know, it is almost impossible to achieve anything through complaints and courts. The only way out, “the whole world” to install heat meters. Sooner or later, public utilities will have to put things in order in their economy, since they will have to pay for heat losses on their own.