Decree No. 193 / 2007 Coll.
Order setting out the details of the efficiency of energy use in the heat energy distribution and internal heat energy and cold distribution
Valid
Order
Effective from 01.09.2007
Text versions:
01.09.2007
31.07.2007
193
DECLARATION
of 17 July 2007
laying down details of the efficiency of energy use in heat energy distribution and internal heat energy and cold distribution
The Ministry of Industry and Trade provides pursuant to § 14 (5) of Act No. 406 / 2000 Coll., on Energy Management, as amended by Act No. 177 / 2006 Coll., ("the Act ') for the implementation of § 6 (9) of the Act:
Subject matter
(1) This decree implements the relevant regulation of the European Community1). It lays down requirements for the efficiency of the use of energy in newly established thermal energy distribution installations and for the internal distribution of heat energy and cold, and for the installation of such facilities by thermal insulation, regulation and control of
(a) steam, hot water and hot water networks and hot water distribution and cold water networks, including connections, with the exception of cooling water from energy and technological processes which drain heat energy into the environment;
(b) transfer or exchange stations;
(c) equipment for the internal distribution of heat energy, cold water and hot water in buildings (hereinafter referred to as "internal distribution").
(2) Furthermore, this Decree provides for the method of detecting heat losses of thermal energy distribution installations and the internal distribution of heat energy, cold and hot water.
(3) This Decree applies to heating distribution and internal thermal energy and cold distribution systems for the supply of thermal energy to residential buildings or together to residential buildings, for technological purposes and for non-residential premises.
Efficiency of energy use in heat energy distribution
(1) The heat network is designed to make the annual use of its thermal energy transfer capability as large as possible. If an optimisation calculation, respecting economically efficient energy savings, demonstrates the advantage of a separate pipeline for operation outside the heating season, the pipeline shall be dimensioned according to the economic specific pressure loss.
(2) The efficiency of energy use in terms of transport and heat loss is determined according to the formula set out in Annex 1 to this Decree.
(3) When designing new and reconstructing existing heat networks, a solution for which the minimum energy performance in terms of heat energy transport ηc and the maximum efficiency in terms of heat loss ηz shall be used. Minimum values, or maximum values, need not be respected if a better solution is proposed based on an optimisation calculation that respects economically efficient energy savings. The circular pump is not oversized and is designed around its highest energy efficiency.
(4) In operating conditions, the efficiency of the use of energy in terms of heat losses shall be evaluated ηfrom once a year.
Thermoplastic substance and its parameters in the heat distribution
(1) For heating and hot water preparation and wherever sufficient for the purpose, hot water up to 90 ° C or 115 ° C shall be chosen as a priority for the transfer of heat energy. Hot water above 115 ° C shall be used for large-scale heat networks intended to supply large-scale settlements, municipalities and distant customers. The steam as a heat transfer agent shall only be used where it is technically-justified and justified by the optimisation calculation, and in particular for technological purposes.
(2) The calculation temperature in the return pipe is chosen below or equal to 70 ° C. A higher value than 70 ° C, in particular due to the accumulation of heat in the network, shall be justified by an optimisation calculation respecting economically efficient energy savings.
(3) Hot or hot water for heating shall be maintained at the temperature strictly necessary to ensure the supply of the heat energy needed to achieve the thermal comfort of the users of connected residential and non-residential spaces, in accordance with the climatic conditions during the heating season.
(4) The pressure in the hot water and hot water network shall be maintained in service at a level which ensures that no evaporation of water occurs in any part of the pipe or in the connected heat collection device. The return pipe shall be permanently pressurised.
(5) Steam parameters are selected in such a way that, in view of the loss of pressure and temperature in the network, the requirements of all connected customers are met and the condensation in the pipeline is limited in its transport. This shall also be taken into account when measuring the pipes.
(6) When reconstructing the steam heat network, steam as a heat transfer agent shall be replaced by hot or hot water in accordance with paragraph 1 in all parts or separate circuits to which heat energy is supplied for heating and hot water preparation or for technological purposes.
Internal thermal energy distribution
(1) Each heat-energy appliance shall be equipped with a closing capability, if its technical solution and use so permit. Each heating unit shall be equipped with a shut-off and regulating valve with a regulator to ensure local regulation and for two-point connection, excluding single-ring heating systems, also with a control screw, unless it is a case under Section 7 (5).
(2) Each steam appliance, including steam distribution, or in technically justifiable cases, a group of appliances shall be equipped with an appropriately elected condensate courage to prevent steam entering the condensate pipe, except for condensate-side power control appliances. Each steam appliance in a group connection connected to a joint condensate closure shall be equipped with a feedback and closing fittings.
(3) For heating with forced circulation of the non-production object heat-bearing substance, the temperature of the heat-bearing substance at the entrance to the heating body is selected up to 75 ° C. For heating with natural circulation of heating water, the temperature of the heat carrier at the entrance to the heating body shall be selected at a maximum of 90 ° C.
(4) To reduce the temperature and use of evaporation in the condensate system, refrigerators are installed to ensure condensate cooling below 100 ° C.
(5) The heat energy transferred to the heated space from the non-insulated pipeline shall be considered as a continuous thermal gain that is considered when designing the heat output of the heating bodies in accordance with Tables 1 and 2 set out in Annex 2 to this Regulation, if the temperature of the heat transfer substance in the distribution is equal to or greater than 60 ° C. The connection line to the heating body shall be respected from a length of 2 m.
Heat insulation of thermal energy distribution and internal heat energy distribution for heating and technological purposes and for hot water distribution
(1) The part of the heat network which passes through non-tempered spaces, with a heat carrier with a temperature above 40 ° C, which does not serve the tempering of the spaces through which it passes, is equipped with thermal insulation. If it is necessary to ensure condensate cooling below the specified temperature and it is not possible to ensure cooling in refrigerators allowing the use of heat thus obtained, then in exceptional cases it is possible not to install insulation on condensate pipes and tanks.
(2) Thermal insulation is protected against mechanical damage. The outer surface of the insulated pipe shall be adjusted to be resistant to external environment and sunlight. Moisture of thermal insulation is prevented by measures to protect against atmospheric moisture, in the case of duct-free design against ground moisture, in the case of ducts in ducts from entering underground and surface water into these channels.
(3) The thermal insulation of internal conductors with a heat transfer agent up to 115 ° C shall be designed so that its surface temperature is less than 20 K higher than the ambient temperature and, in the case of internal conductors with a heat transfer material above 115 ° C, less than 25 K below the ambient temperature, unless otherwise specified by virtue of Paragraph 5 (4).
(4) Thermal insulation shall be installed on all internal manifolds unless they are intended for heating or tempering the surrounding space, with the exception of condensation pipes and tanks.
(5) The insulation of fittings and flanges is performed as removable. Isolation is not required for fittings where it would jeopardise their function or significantly complicate their handling.
(6) The minimum thickness of the heat insulation of the fittings shall be chosen as for pipes of the same nominal diameter.
(7) When calculating the heat losses of the wiring, heat losses by non-insulated fittings, storage and compensators shall be affected by the correction factor for pipe length
(a) for channel-free storage 1,15,
(b) lead in channels 1,25,
(c) for overhead or ground lines 1,30.
(8) For thermal insulation of distribution, material having a coefficient of thermal conductivity of λ shall be used for distribution less than or equal to 0,045 W / m.K and for internal distribution less than or equal to 0,040 W / m.K (λ values given at 0 ° C), unless this is excluded by safety technical requirements.
(9) For manifolds, the thickness of the thermal insulation shall be determined by calculation so that the coefficient of heat transfer per unit of pipe length U is less than or equal to the values given in Annex 3.
(10) At higher operating temperatures than 90 ° C, the insulation thickness shall be increased proportionately for internal distribution to meet the requirement in paragraph 3.
(11) For internal wiring, the minimum thermal insulation thickness (diz - d) / 2 shall be determined by calculation so that the coefficient of heat transfer per unit of pipe length U was less than or equal to the value given in Annex 3 to this Decree and the provisions of paragraph 3 were complied with. The calculation shall be based on the relationship set out in Annex 3. For internal distribution of plastic and copper, the thickness of thermal insulation is chosen according to the outer diameter of the pipe nearest to the outer diameter of the DN series.
(12) In the case of internal manifolds of less than DN 10, the insulating logically insoluble discrepancy shall be taken into account when determining the thickness of the thermal insulation.
Transmission stations and their equipment
(1) Any source of heat energy for central heating or connected transmission stations, where appropriate, to ensure the efficient management of heat energy and equilibrium between the production and consumption of heat energy, shall be equipped with an automatic temperature control device for the temperature of the heating substance, in particular depending on the course of climatic conditions or outdoor temperature in connection with indoor temperature in the heated space or according to the load or vapour pressure regulator. The requirement does not apply to solid fuel boiler rooms.
(2) A pressure difference of a level which enables the regulation of heating and hot water temperatures in consumers shall be maintained at the sampling plant.
(3) Transmission stations shall preferably be set up separately for individual customers. Multiple customer joint stations are replaced preferably by individual customer stations during reconstruction.
(4) The design of regulation in transmission stations shall be carried out in such a way that a technically sufficient solution is adopted while maintaining the economic advantage.
(5) The preparation of hot water for transfer stations is always handled as pressure independent with the separation of the heating and heated heat carrier surface.
(6) Transmission stations are equipped with automatic temperature control of the heat carrier. The type of regulation used shall be chosen according to the maximum available heat energy savings and in accordance with paragraph 4.
(7) For water primary distribution, new or reconstructed transfer stations shall be taken measures to prevent the maximum permissible flow on the primary side of the distribution from being exceeded by the customer. Heat limiters are installed on steam heating networks.
(8) Steam transfer stations are such stations where the primary heat carrier is water steam. For the supply of water vapour, provision shall be made to ensure that the primary heat transfer material at the point of connection of the transfer station is not wet steam.
(9) The internal thermal energy distribution in heat energy sources and transmission stations shall be provided by thermal insulation according to Section 5.
Regulation and management of heat energy supply
(1) Circulating pumps are designed for nominal flow and pressure loss of the main supply branch.
(2) Circulating pumps at transmission stations and in heating systems with rated heat output above 50 kW are equipped with automatic continuous or at least three-stage speed control, unless this is prevented by the operation of pumps.
(3) Thermal energy sources which provide heating for central, residential, individual and local purposes are equipped with automatic regulation enabling the supply of heat to be centrally reduced or shut down, as well as on and off electrical equipment providing the transport of heat energy depending on outdoor temperature or other determining variable. The choice of the type of regulation favours the requirement of maximum heat energy savings. The requirement does not apply to solid fuel filling boilers.
(4) Consumers are equipped with local regulation to take into account heat gains from sunbathing and internal thermal gains. For groups of appliances and for groups of rooms of the same type and type of use in a non-byte object, group regulation is permitted.
(5) In order to ensure the economical, noise-free and fault-free operation of the whole heating system, the corresponding technical means are used.
(6) In the case of heat energy distribution and internal heating and hot water distribution, flow rates should be adjusted to correspond to the rated flows proposed with a maximum deviation of ± 15%. The flow adjustment shall be demonstrated by measuring the individual heating system branches. Measurements shall be made when putting into service, after the removal of serious operational defects, when there is insufficient supply or overheating at a customer or consumer, and when there are changes in equipment affecting the pressure ratios in the network, in particular when new and undone existing customers or consumers. The protocol on measuring and setting of flow rates remains permanently stored with the operator of the divorce or internal divorce.
Heat insulation of hot water tanks and expansion vessels
(1) The minimum thickness of thermal insulation of hot water storage tanks and open expansion vessels is 100 mm using insulation material with a coefficient of thermal conductivity λ of less than or equal to 0,045 W / m.K (declared at 0 ° C). For other values of thermal conductivity factors, the thickness of insulation shall be recalculated to achieve the same or better thermal insulation properties.
(2) The minimum thermal insulation thickness of passive storage tanks (storage containers) is 100 mm when the insulation material is used with a coefficient of thermal conductivity λ of less than or equal to 0,04 W / m.K (declared at 0 ° C). For lower thermal conductivity coefficient values, the insulation thickness shall be recalculated to achieve heat transfer coefficient U ≤ 0,30 W / m2.K.
(3) For long-term or seasonal heat energy storage tanks, the heat insulation thickness is determined by an optimisation calculation respecting economically efficient energy savings.
Coolant distribution, thermal insulation and regulation and control of cold supply
(1) The distribution and internal distribution of cold is dimensioned on the basis of an optimisation calculation respecting economically efficient energy savings.
(2) Cold distribution and internal cooling distribution with operating temperature of the coolant + 18 ° C to + 5 ° C have insulation thickness according to § 5 (9) and (11).
(3) For thermal insulation of distribution and internal cold distribution, material having a coefficient of thermal conductivity λ less than or equal to 0,038 W / m.K (λ values given for 0 ° C) shall be used.
(4) The cooling distribution and internal cooling distribution with an operating temperature of less than + 5 ° C shall be equipped with thermal insulation with a minimum thickness of 1,5 times the thickness determined in accordance with paragraphs 9 and 11 of Section 5.
(5) For internal distribution of the cold of small diameters smaller than DN 10, the design of thermal insulation thickness shall take into account the insulating logically insoluble discrepancy.
(6) The surfaces, joints and face of thermal insulation shall be provided with an appropriate non-intermittent steam-tight layer to prevent moisture penetration by water vapour diffusion. Paragraph 5 (2) also applies to insulation protection. Thermal insulation, provided with a metallic coating on the external surface, shall be provided at operating temperatures below + 15 ° C on all joints with still flexible moisture diffusion with diffusion resistance factor μ > 7000.
(7) If the outer surface of the thermal insulation is not fitted with a parallel layer or sealed rinsing, a heat insulation with a diffusion resistance factor μ > 5000 shall be used.
(8) Fibrous insulation is not used for manifolds with operating temperatures below + 15 ° C. Within the temperature range 0 to + 15 ° C, their use is only possible in combination with capillary conductive tissue.
(9) The pipe assembly and the foam of polyurethane insulation shall be carried out according to the technical regulation of the pipe manufacturer.
(10) Heat insulation shall be carried out in such a way that no cables, water pipes, etc. If it is necessary for a conductor to pass through the insulation, a separate passage shall be made in the thermal insulation, appropriately insulated and sealed against diffusion.
(11) The thermal insulation shall be carried out in such a way as to avoid condensation of humidity from the air between the pipe and the thermal insulation.
(12) The minimum thermal insulation thickness of cold storage tanks is determined by an optimisation calculation, respecting economically efficient energy savings.
(13) Each source of cold, or connected to it, shall be equipped with an automatic cooling control device, depending on the need for cold, to ensure the efficient management of the cold and to ensure the steady state between production and cold consumption.
(14) When designing the regulation of the supply of cold, the method is chosen according to the most advantageous technical economic calculation.
(15) Cold sources are equipped with regulation to reduce or disable the supply of cold centrally, as well as to turn on and off electrical devices providing the supply of cold and regulating sources of cold, depending on the determining quantity. In choosing the type of regulation, the requirement of maximum cold savings is preferred.
(16) For cooling distribution and internal cooling distribution, flow rates shall be adjusted to correspond to the rated flow rates proposed with a maximum deviation of ± 12%. The adjustment of coolant flow rates shall be demonstrated by measurements in individual system branches. Measurements shall be made when putting into service, after the removal of serious operational defects, in the absence of supply and changes in equipment affecting the pressure ratios in the network, in particular when new and unbundled existing customers or consumers are connected. The protocol on measuring and setting flow rates remains permanently stored with the operator of the distribution or internal distribution of the cold.
Methods for determining heat losses and gains in heat energy, cold and hot water distribution installations
(1) In operating conditions, operating methods are used to detect heat losses and gains in thermal energy, cold and hot water distribution facilities.
(2) For operating methods temperatures are not precisely defined and measurements depend on the measurement method options. The accuracy of the measured values, i.e. heat flow or thermal conductivity, is less than 5%. Operating methods verify thermal insulation properties primarily by thermal conductivity and heat losses.
(3) The report from the operational measurement shall record:
(a) date, time and length of measurement;
(b) a technical description of the measuring equipment and the place of measurement;
(c) dimensions of the measured insulation, in particular pipe diameters, composition and thickness of layers;
(d) the type of insulating material and its state;
(e) operating temperatures, ambient temperatures, climatic conditions.
(4) Operating methods are Schmidt, thermal and calorimetric. A description of the operating methods is given in Annex 4 to this Decree.
(5) Due to heat flow measurements are made
(a) at a steady flow of heat, in a period where the temperatures of the internal and external environments are not changed or the ambient air flow rate (stationary method);
(b) in the case of continuous heat flow, under controlled heating or cooling, while determining the time at which the other side of the insulated plate is heated or cooled. These are laboratory methods with higher accuracy and impossibility of determining the mean temperature (non-stationary method).
Repeal
The following shall be deleted:
1. Decree No. 151 / 2001 Coll.
2. Decree No. 153 / 2001 Coll., specifying details of the determination of the efficiency of energy use in the transmission, distribution and internal distribution of electricity.
Efficacy
This Decree shall take effect on 1 September 2007.
Minister:
Ing. Roman v. r.
Příloha č. 1
Annex No. 1 to Decree No. 193 / 2007 Coll.
Determination of energy efficiency for thermal energy distribution
A) The efficiency of thermal energy transport is determined by:
ηc = mxPN + dost ji = 1k nixPSN, iPN -
where
l + m + n = l [-]
B) The efficiency of thermal loss use is determined by:
ηZ = IKQOD, iQZD -
where
| PN | jmenovitý příkon čerpadla | [kW] |
| PSN | příkon čerpadla při nižších než jmenovitých otáčkách | [kW] |
| QOD,i | teplo odebrané i-tým odběrným místem | [GJ] |
| QZD | teplo dodané zdrojem | [GJ] |
| k | počet pevně nastavitelných stupňů otáček, na které je čerpadlo provozováno | [-] |
| l | poměrná část provozní doby čerpadla za otopné období, kdy čerpadlo nepracuje | [-] |
| m | poměrná část provozní doby čerpadla za otopné období, kdy čerpadlo pracuje se jmenovitými otáčkami | [-] |
| n | poměrná část provozní doby čerpadla za otopné období, kdy čerpadlo pracuje se sníženými otáčkami; u čerpadel s plynule proměnnými otáčkami se uvažuje n=0,5 | [-] |
Příloha č. 2
Annex No. 2 to Decree No. 193 / 2007 Coll.
Indicative heat output values of an uninsulated pipeline per m length
Table 1 Vertical distribution
| Vnitřní | Teplota vody v trubce [°C] | |||||||
|---|---|---|---|---|---|---|---|---|
| Potrubí | výpočtová | 90 | 85 | 80 | 75 | 70 | 65 | 60 |
| teplota | Tepelný výkon neizolovaného potrubí | |||||||
| DN | °C | W/m | ||||||
| 10 | 20 | 45 | 40 | 35 | 30 | 30 | 25 | 20 |
| 15 | 20 | 60 | 50 | 45 | 40 | 35 | 30 | 30 |
| 20 | 20 | 70 | 65 | 60 | 50 | 45 | 40 | 35 |
| 25 | 20 | 90 | 80 | 70 | 65 | 55 | 50 | 40 |
| 32 | 20 | 110 | 100 | 90 | 80 | 70 | 60 | 55 |
| 40 | 20 | 125 | 115 | 100 | 90 | 80 | 70 | 60 |
| 50 | 20 | 150 | 140 | 120 | 110 | 100 | 85 | 75 |
Table 2 Horizontal distribution
| Vnitřní | Teplota vody v trubce [°C] | |||||||
|---|---|---|---|---|---|---|---|---|
| Potrubí | výpočtová | 90 | 85 | 80 | 75 | 70 | 65 | 60 |
| teplota | Tepelný výkon neizolovaného potrubí | |||||||
| DN | ti [°C] | W/m | ||||||
| 10 | 20 | 35 | 30 | 30 | 25 | 25 | 20 | 15 |
| 15 | 20 | 45 | 40 | 35 | 30 | 30 | 25 | 20 |
| 20 | 20 | 55 | 50 | 45 | 40 | 35 | 30 | 25 |
| 25 | 20 | 70 | 60 | 55 | 50 | 45 | 40 | 30 |
| 32 | 20 | 85 | 75 | 70 | 60 | 55 | 50 | 40 |
| 40 | 20 | 95 | 85 | 80 | 70 | 60 | 55 | 50 |
| 50 | 20 | 115 | 105 | 90 | 85 | 75 | 65 | 55 |
Příloha č. 3
Annex No. 3 to Decree No. 193 / 2007 Coll.
Determination of heat transfer coefficient per unit of length
U = π1αi + 12λtr ln dD + 12λiz ln dizd + 1αiz. Diz W / mK
| kde: | U | součinitel prostupu tepla vztažený na jednotku délky | [W/mK] |
| D | vnitřní průměr trubky | [m] | |
| d | vnější průměr trubky | [m] | |
| diz | vnější průměr izolace [m] αiz součinitel přestupu tepla na povrchu izolace | [W/m2K] | |
| αi | součinitel přestupu tepla na vnitřní straně trubky | [W/m2K] | |
| λiz | součinitel tepelné vodivosti tepelné izolace | [W/m.K] | |
| λtr | součinitel tepelné vodivosti materiálu trubky | [W/m.K] | |
| te | teplota okolního vzduchu | [°C] | |
| tiz | povrchová teplota tepelné izolace | [°C] |
The coefficient of heat transfer on the inside of the tube shall be determined from the corresponding critical equations respecting the flow rate and other physical variables and the radiant component still being respected on the outside of the thermal insulation.
αiz = αiz, K + αiz, S
| kde: | αiz,K | součinitel přestupu tepla na povrchu izolace konvekcí | [W/m2.K] |
| αiz,S | součinitel přestupu tepla na povrchu izolace sáláním | [W/m2.K] |
Determination of heat transmittance factors per unit of length for internal distribution
| DN | 10 až 15 | 20 až 32 | 40 až 65 | 80 až 125 | 150 až 200 |
|---|---|---|---|---|---|
| U [W/mK] | 0,15 | 0,18 | 0,27 | 0,34 | 0,40 |
Determining values of heat transmittance factors per unit of length for distribution stored in the country
| DN | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 175 | 200 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| U [W/mK] | A | 0,14 | 0,17 | 0,18 | 0,21 | 0,23 | 0,25 | 0,27 | 0,28 | 0,32 | 0,36 | 0,38 | 0,39 |
| B | 0,16 | 0,19 | 0,20 | 0,24 | 0,26 | 0,30 | 0,31 | 0,32 | 0,36 | 0,40 | 0,44 | 0,46 | |
A - fixed pipes; B - Flexible piping and dual piping (placed side by side)
When calculating the coefficient of heat transfer for distribution stored in the ground, the ratio of 1 / αiz by heat resistance of the layer 1 m adjacent soil Rz [m2.K / W] shall be replaced in relation.
- free soil and sand Rz = 1,11 m2.K / W
- Rz rock = 0,42 m2.K / W
- soil or rock below the water level Rz = 0 m2.K / W
Příloha č. 4
Annex No. 4 to Decree No. 193 / 2007 Coll.
Operating methods for determining heat losses and profits in heat and cold distribution installations
1) Schmidt method
The rubber band is lined with a serial thermocouple measuring the temperature difference on the tape thickness of 2 mm. The belt is inserted into the waist 60 x 5 x 600 mm. The waist is attached to the measured surface through which the heat flow passes. It causes temperature changes on the inside and outside surface of the sealed tape and serial thermocouples multiplying the change signal voltage depending on the size of the heat flow. The constant of the passport C is obtained after the measurement of the waist. By multiplying the subtracted voltage on the terminal of the waist, we get the measured heat flow. Due to the calibration of the waist on the plane, the heat flow determined on the pipe is multiplied by the correction factor. Measurements require steady state, the surface protects against ambient air flow, the passport cannot be placed on a metal surface, additional passports are added to the waist from the sides and the measurement requires operator experience.
2) Thermal method
This method represents the method of measurement in which the surface of the insulated device is scanned by the thermal imaging camera. Thermal display of surface surfaces allows to record the distribution of the surface temperatures of the equipment and thus any defects of insulation that appear as thermal bridges. This method does not allow verification of the coefficient of thermal conductivity of thermal insulation.
The thermal method is suitable for a comprehensive assessment of the actual state of heat insulated distribution and energy equipment.
3) Calorimetric method
The method based on the calorimetric equation allows to determine heat losses or gains on the section of the divorce. The measurement shall determine the temperature difference of the heat carrier and the flow rate. When using the supplier's heat invoicing meters and the total value of the input invoicing meters at customers, it is possible to estimate the heat losses of the entire network. However, the measured difference includes, in addition to the heat loss of the network and any inaccuracies of the measuring instruments, and often this method does not give credible results.
1) Directive 2002 / 91 / EC of the European Parliament and of the Council on the energy performance of buildings.
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Regulation Information
| Citation | Decree No. 193 / 2007 Coll., laying down details of the efficiency of energy use in the heat energy distribution and internal heat energy and cold distribution |
|---|---|
| Regulation Type | Order |
| Author | - |
| Collection | Code of Laws |
| Date of Promulgation | 31.07.2007 |
|---|---|
| Effective from | 01.09.2007 |
| Effective until | - |
| Status | Valid |
The regulation text is for informational purposes only.
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