Waste water that ends up in the sewer network contains a large amount of energy. Utilization of this energy, which is also available throughout whole year, is not yet part of the standard engineering practice in the Czech Republic. This article brings an inspiration in the form of experience from Austrian city of Amstetten, where was implemented a project, which is using combination of a sewage heat exchanger and a heat pump. State of the art as the same as the factors affecting the utilization of waste heat are also included.

The heating is different from the circulating water supply by solving the transmission capability (thermals) and power control (thermals + hydraulics). Basic control condition (default) ensures adjustment of elements on the required thermal and hydraulic parameters. Regulating processes are derived from this status, as well as the heat savings in heating. The savings can be solved only through a project and nothing else.

The issue of energy utilization of waste and the connected construction of new facilities is a very actual phenomena. The article addresses primary the trends of waste treatment and contemplates the option of energy utilization of waste from different perspectives. In a not insignificant part of the article is described the waste as a fuel, which means its composition and properties. This article is first from a prepared miniseries about waste.

The article, with its theme of gear just beginning to cell cycle at a relatively broad topic of “thermodynamic phenomena in the pipeline and its surroundings”, describes the current situation in the field of pipeline networks and in the field of energy related equipment, determining the operating condition of the whole heating systems. This is essentially a search condition and trends of modern heating, working as using conventional manufacturing processes, as well as the application of engineering principles and methods in the field of far less obvious. This two-part article, articles and downstream, is also setting research targets thermodynamic and hydraulic phenomena in pipes and in its vicinity, which gradually obtaining knowledge useful in practice, will be precisely processed using mathematical, mostly numerical, models.

The article, with its theme of gear just beginning to cell cycle at a relatively broad topic of “thermodynamic phenomena in the pipeline and its surroundings”, describes the current situation in the field of pipeline networks and in the field of energy related equipment, determining the operating condition of the whole heating systems. This is essentially a search condition and trends of modern heating, working as using conventional manufacturing processes, as well as the application of engineering principles and methods in the field of far less obvious. This two-part article, articles and downstream, is also setting research targets thermodynamic and hydraulic phenomena in pipes and in its vicinity, which gradually obtaining knowledge useful in practice, will be precisely processed using mathematical, mostly numerical, models.

District Heating Association of the Czech Republic in late July issued a press release in which reacts to the latest proposal by the European Commission. According to the Commissioner for Energy Günther Oettinger, EC is going to order that EU Member States ensure without obligation energy savings equal to 30 % by 2030.

Having your own home fireplace or stove wants more and more users. Indoor heaters are a hit in recent years. In 2013, the Czech Republic has sold more than 22,000 different interior furnaces primarily on wood. About a quarter of the new owners then voted fireplace or stove with heat exchanger, thus such a source that can heat the whole flat or low-energy house. Some have even reached for the most comfortable way of using wood in the interior - automatic wood pellet stoves.

The heating is different from the circulating water supply system that solves network transmission capacity and the power control. This article deals with the regulation of heat output and helps to distinguish the purpose and importance of the services offered in the marketplace.

The aim is to enable the final consumers to review these main results and to evaluate the credibility of the applied distribution form.

Removed from the building drainage wastewater with an average temperature of 10 °C and 25 °C. Heat recovered from wastewater can be optimally used in low-energy buildings for low-temperature heating, space cooling at high temperature and also to preheat domestic hot water.

The owners of houses in the Czech Republic, in which many flats share common central heating system, must fulfill new legal liability: “to equip the heating system in the building with the devices that regulate and register the delivery of heat to the end users, in the extent defined in an implementary regulation”. According to the law, they have to do so by end of year 2014. The problems are that neither the devices are further specified in the law, nor the implementary regulation exists. The most frequent hypothesis about this duty is that one should install the so-called indicators of heating expenses. It might be valid, but it goes far beyond the legal requirements: As a side effect, it introduces certain method of the expenses accounting. This article presents and justifies an alternative: The liability can be fulfilled by installation of thermostatic valves on the heating bodies.

The article describes important new information about resolving the central heating. Heating is different from circulating water supply by solving transmission capability of pipe networks and by solving the power control. The article deals with the first of real heating characteristics – transmission capability of isolated and non-isolated pipe networks.

Which buildings can receive grants from the Green Savings Programme, amount of the grants and what technical details cover the energy audit? Part A in this article covers the specific questions (building’s envelope rennovation). A sample of 16 family houses that comply with all the required conditions of the New Green Saving Programme from 2013 is further described in this article.

How to develop overall sales and preferences in the field of radiators in the Czech Republic? This is the question we try to answer every year with the help of sales performance evaluation of this business segment. Input data (for the period 2005–2013) we obtained from the Association of heating technology (APTT).

The paper discusses current serious problem of district heating systems (DHS) – disconnecting of individual users and consequent threat of a possible entire heating system collapse in the given locality. Realistic alternatives to the DHS could be heat pumps as individual heat sources. Reasons, advantages and disadvantages of heat pumps in comparison to the DHS are presented in the paper.

The author deals with different combustible properties of biomass and coal. He describes specific approaches to combustion and fabrication of burners and to the method of burning air supply, in particular. He applies himself to new legislative requirements for small heat sources ensuing from the novelty of Act on Environmental Air Protection.

The media regularly appear alarming reports, according to the Czech Republic gets into trouble with the fulfillment of its obligations towards the EU, due to the lack of state financial support. This information is frequently based on calculations originating from the potential recipient of government subsidies, so we cannot rule out that this is about wishful thinking. One of the sectors where we reportedly threatened is the reduction of energy demands.

Year 2013 was important in terms of sales of heat sources in the Czech Republic, because the long-awaited change came after years in the sign of declining demand. Sales of manufacturers grew significantly, as it documents the evaluation of the data obtained from the Association of heating technology (APTT) and the Ministry of Industry and Trade (MPO).

By Directive 2009/28/ES on the promotion of the use of energy from renewable sources, Member States shall ensure that certification schemes or equivalent qualification schemes become or are available for installers of small-scale RES (biomass boilers and stoves, solar photovoltaic and solar thermal systems, shallow geothermal systems and heat pumps). The directive does not imply that a person with no certification could not install the small-scale RES.
Contrary to that the Act No. 406/2000 Coll., on Energy Management (as amended by Act No. 318/2012 Coll.) implies that small-scale renewable energy sources may only be installed by person with appropriate permission. Paradoxically, even though for the installation of a biomass boiler is required permission, fossil fuel boilers can be installed in the Czech Republic without authorization. This is in direct conflict with the intent of the Directive.

The quality of dynamic heating lies in accuracy of adjustment of the valves, which depends on the correct operation and efficiency of regulatory processes, and therefore the overall heating efficiency. This article summarizes the factors that affect the accuracy of the adjustment, and presents the results obtained the new working tools.