The paper focuses on the conditions of fire and risk connected with dust layer. The next part is about thermal degradation of biomass and heat transfer on dust layer. The next part shows test methods for flame spread. The connection of dust layer and possible secondary explosion. In the article is highlighted connection with space and equipment cleaning due to ČSN EN 60079-10-2.

The Author describes heating and cooling in administrative building of development and structural centre of the firm Velteko that utilizes heat gains from production machinery and technical elements equipping the interior in the dependency to the heat need, in his contribution.

Ministry of Industry and Trade (MIT) conducted in early 2012 regular statistical survey. On its basis it is possible to refine the estimate of the supply and installation of heat pumps in 2011. The available information indicates that in 2011 for the Czech market was delivered about 7,000 heat pumps with a total capacity of about 86 MW.

Floors are made by construction layers of different materials with unequal functions and characteristics. This formation creates functional unit. According to the material of bearing layer dry and traditional floor systems are distinguished. In dry floors the bearing layer is made by board prefabricated element, e. g. gypsum fiber board, cement bonded particle board or oriented strand board.
Floors must be designed in accordance with legislative and technical requirements. Thermal and technical requirements are of basic significance. Guarantee of required contact temperature decline value presents a significant parameter for ensuring the thermal comfort.
This article compares an influence of three materials of dry floors bearing layer and two materials of wearing layer on the value of contact temperature decline.

Especially in terms of energy savings and safety must enforce closed appliances category C. It must not, however, commit inappropriate application of new regulations such as Government Regulation No. 91/2010 terms of fire safety during the operation of chimneys, flues and heating appliances.

The Energy Research Centre test was carried out in various types of boilers and stoves more than a thousand of combustion tests with solid fuel. Based on their results, the authors of this article seeks to define four basic parameters that most influence the quality of combustion and emissions of pollutants.

Making sense of the information in the field of heating is not easy. Users of heating systems are exposed to the pitfalls of commercialism and the effort to save expensive heat is forcing people to meet clashing opinions in an environment of rumors, myths, and chimeras. The one who deceives us can do it deliberately, or is victim of false reasoning, since heating is not an easy field. Let’s get the whole situation a little more transparent.

Nowadays, everyone would like to certainly know how to efficiently convert a stock of fuel into heat which warms up your home. This article focus on method which measures the efficiency of combustion equipment easily. Based on this information, anyone can optimize his/her combustion device and hereby increase its efficiency. This will reduce fuel consumption, which can result in significant cost savings.

The unfavorable trend in the development of carbon monoxide poisoning in the operation of gas appliances category B hasn’t, despite increasing technical performance of these appliances, downward trend. What is the responsibility of manufacturers, operators, assembly and service companies, engineering inspectors and citizens - users in the operation of gas appliances in case of poisoning?

The unfavorable trend in the development of carbon monoxide poisoning in the operation of gas appliances category B hasn’t, despite increasing technical performance of these appliances, downward trend. What is the responsibility of manufacturers, operators, assembly and service companies, engineering inspectors and citizens - users in the operation of gas appliances in case of poisoning?

Mathematical description of a linear dynamic system can be obtained in various ways. Theoretical models are desirable when basic physical laws of nature are known that describes the relationship between input and output signals, mostly in terms of differential equations. If this is not case, approximate dynamic characterization may be received from the statistical analysis of experimental data. The paper describes techniques used in building thermal simulations, with particular focus on state-space models. If excited by real meteorological conditions, momentaneous temperature variations in an enclosure could be computed that are prerequisites for analysis of long-term heating loads, particularly if the model is exploited as a part of the advanced control system.

This paper deals with the issue of comparing simulations for steady and unsteady thermal state at the massive structures. In this paper, computer simulations are compared with real measurements and measurements of climatic data. The evaluation showed that the steady-state temperature can be comparing with real model used after the end of the accumulation phase. It is evident that the requirements for the temperature factor of the internal surface of the solid structures, set by legislation, are a safe assumption.

It is generally recommended that the wood for quality burning should not have more than 20% by weight of so-called energy moisture. The described method allows a unique determination of moisture content of firewood at home.

The paper describes the management of district heating systems with circulating pumps with variable and controlled speed. It is shown that this control method is compared to systems with circulating pumps with fixed speed very advantageous, by substantially reducing power consumption to drive the pumps.

Evaluated the effectiveness of austerity measures must take into account both external and internal temperature of the object and the value of the average heat gain at which heat consumption was measured. Article analyzes the individual components, and presents the average values.

The article is research on the thermal properties of various construction types of thermal drillings. It focuses on the impact of their installation on their efficacy, duration and cost and to their safety for underground water and water-related ecosystems.

This article describes the problematic calculation of local heat flux of floor heating system in accordance to floor structure. Calculation methodology is based on ČSN EN 1264 standard and calculation is applied to three the most frequently used floor constructions.

This paper describes the basic concepts of pumping technology - characteristics of the pump, and resistive characteristics of system, operating point, and deals with the result effect of the series of the circulator in serial and parallel connection.

Relatively same heat savings can be achieved with thermal comfort by regulation, or without thermal comfort by switching off the radiators. It depends on how the heating is operated and how heat gains are used in the building. The article contains a simplified example that relations between real and purported savings of heat explains.

Meaningfulness and financial benefits of the hydraulic system of hot water and heating control are known in the general public. Less well known is need to care for such a controlled system and the possible need to streamline the already regulated system.