Metrona provides installation, reading and additional services with a network of branches throughout Poland, so we can provide technical support directly on site.

All installation and reading activities are supervised by an experienced team of Installation Technicians.

The priority of the Installation Department is quick and highly qualified services in the field of products and services, assistance in the selection and specification of the product and installation of meters in respective projects.

Meters: water meters and heat meters - installation recommendations

The residential water meters and heat meters offered by Metrona Polska are all metering instruments, and their readings form the basis for billing heat and water.

According to the regulation of the Minister of Development and Finance of 13 April 2017, metering instruments can be used for a period of five years from the first day of the year following the year of its verification. This means that before the expiry of this period, the metering instrument should be removed and subjected to re-verification or replaced with a new one, as the readings of meters with the verification period expired cannot be used for billing purposes.


Verification – a set of activities that includes checking, verifying and certifying with the proof of verification that the metering instrument meets the requirements set out in the relevant regulations. The proof of verification is the Verification certificate that confirms the fulfilment of these requirements. Verification is obligatory for certain types of instruments specified in the regulations (GUM source).

Types of verification, verification periods for particular types of instruments and deadlines for providing metering instruments for re-verification after conformity assessment are specified in Annex 6 to the Regulation of the Minister of Development and Finance of 13 April 2017 on the legal metrological control of metering instruments (Journal of Law, Item 969).

There are three types of verification:

Initial verification – performed before placing a given instrument on the market or use. The instruments subject to initial verification are delivered with proof of verification when sold.

Re-verification – performed on metering instruments already placed on the market or used.

Metrona, for the sake of the environment, enables the users to give their metering instruments a second life through the process of re-manufacturing and re-calibration. This service is available for selected water meters and heat meters.

Heating cost allocators - installation recommendations

Heating cost allocators (regardless of the type of construction and type) are not metering instruments within the meaning of the Act of 11 May 2001 – Law on Measurements (Journal of Laws of 2013, Item 1069, of 2015, Item 978 and of 2016, Item 542). According to the provisions of Art. 4, Point 5 of this Act, a metering instrument is a piece of equipment, a system or a component intended to perform metering alone or in combination with one or more additional equipment. Heating cost allocators are not metering equipment, because they do not measure any physical value (including heat). In most cases, the increase in their indications (expressed in non-dimensional scale intervals) depends on the temperature of the radiator surface at the place of installation of the allocator and the time of heat transfer by the radiator. Therefore, heating cost allocators are not subject to legal metrological control (type approval and verification), so it is not required to submit any evidence of such control.

Readings of the heating cost allocators together with the billing system are used only to divide the cost of heat supplied to a multi-flat building between individual users of the premises that are equipped with the same type of allocator. The total cost of heat is calculated based on the indications of the heat meter installed in the heat substation. The readings of this heat meter are used for the heat settlements between the heat supplier and the housing cooperatives/associations.

The issues related to the heating cost allocators (including assessment of their compliance with applicable standards) and heat billing rules within the housing cooperatives/associations do not fall within the statutory competence of the President of the Central Office of Measures.

Allocator replacement is defined by the durability of the battery: 10 years + 1 year.

The Act amending the Energy Efficiency Act and certain other acts (Journal of Laws 2021, Item 868) published on 7 May 2021 introduces the obligation to install equipment for measuring the individual costs of central heating and water heating.

It is worth installing allocators with remote reading now since all these instruments must be equipped with this function by 1 January 2027.

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