Quality product is dependent on reliable and serviceable manufacturing facility, which is influenced by effective and timely performed maintenance. In order to check the operating parameters it is possible to use vibrodiagnostics, tribodiagnostics, termodiagnostics, non-destructive testing methods and others. It's difficult to choose the right moment to implement maintenance inspection in order to exploit the whole equipment life time and reduced risk of breakdown failure. The fundamental rules for determining the maintenance measurement interval in the diagnostic management system has not been established. Therefore, the emphasis is on determining the interval for measuring of the implementation of periodic data collection, which is more often used than the on-line diagnostic systems for secondary production techniques and technologies with a parallel backup. Proposal for a definition of the calculation of interval measurement is based on the assumption that the calculation must reproduce the behavior of the measured variables and dynamically respond to changes in the trend of damage. Technology has been chosen with a sufficient history of operations and maintenance, to check whether the model of the calculation of the dynamic range of measurement is usable in engineering practice and if it is sufficient enough be to manage and plan the maintenance action. To verify the model five pumps with three parallel backups were used. A major finding from these results is the fact that under the dynamic interval only four more measurements were made than if the measurements were carried out at regular intervals. Just the last four measurements before the outage was made within 31 days, which would normally correspond to one measurement interval. On the other hand, it is necessary under the regular intervals to verify the step change of measured values. This difference in the number of measurements compensated in practice is usually equal to the number of measurements in dynamic mode interval. If based on the premise that the number of measurements under the dynamic range is the same as at regular intervals and use this method in this direction "zero cost" essential contribution is primarily the cost savings on storage of spare parts and reduce the likelihood of other costs with overtime up to 60% compared with measurements carried out at regular intervals. Undeniable contribution to maintenance is also a fact that by making a service action with the deployment of dynamic range measurements, it can even closer determine real life time of bearing and it is possible to use of the maximum potential production of equipment.

The article discusses the development of a test circuit for measuring hydraulic properties of thermal units of building services. The purpose of the test circuit is mainly determining the pressure loss of heat units. First, the article provided the theoretical foundations of the problem. It is also described development of equipment and its function. End of the article deals with the measurement using the circuit and presents the results of measurements.

The article is the result of surveys conducted in the work of raw material and energy department statistics, the Ministry of Industry and Trade. Material published in August 2011 includes data on molded (formed) fuels (briquettes and pellets) made from biomass (wood and plant), peat, coal and paper.

After the implementation of energy saving measures (insulation, replacement windows, hydraulic regulation of heating, etc.) the energy consumption will reduce on the calculated level at which will hold a few years. Evaluation of ENCON projects has found that after 1 year to 2 years energy consumption will rise again.

The heating period 2010/2011 in Prague based on the observation of Prague-Karlov station was 219 days, a little shorter, and with an average temperature of 4.8 ° C, slightly warmer than the long-term average. The basic characteristic of heat demand for heating is 3114 D ° (19) degree days, heat demand is somewhat lower than the long-term average of 3227 D ° (19).

Author states in his article in the practice commonly used method of protection against leakage of gas, but for which there is no guarantee of safe shutdown. The following describes two examples of solutions that meet the requirements of active safety.

Article provides information about first installed heat pump in family houses in the Czech republic. Author shows the growth in operating costs a savings over the last 20 years.

Department of raw material and energy statistics of the Ministry of Industry and Trade dealt with detection rates of solid fuels in 2009, especially briquettes and pellets, under which in December 2010 issued material with the statistical evaluation of items: wood and plant pellets, wood, plant, paper, coal and peat briquettes.

The author in his paper examines in detail the individual steps that make up the course selection process for energy services provider. Special focus is on the evaluation of the bids submitted in the tender.

The author in his article deals with the problems in current legislation on the issue of flue gas from the "turbo" gas applicances. The second part deals with the requirements for combustion gases from "turbo" boilers and their impact in practice.

The author in his article deals with the problem areas in current legislation on the issue of flue gas from appliances - category C. The first part focuses mainly on the definition of the flue gas path and the required actions arising from it.

This paper describes the brief overview of field devices used in heating, ventilation, airconditioning and cooling. The description of sensors, switches, valves, actuators and frequency inverters was presented in detail.

In relation with the present discussions on the use of solar energy it is useful to mention one important stage of Czech agriculture - the production of really high-quality roughage. Besides the development of methods of silage and haylage, thirty years ago the researchers looked at final drying of forage in large-scale haylofts using air solar collectors.

The paper deals with identifying suitable areas of use of small cogeneration units fossil fuels and renewable energy sources in municipal and industrial uses. Discusses the advantages and disadvantages of cogeneration units based on internal combustion engines, gas turbines and steam engines, including their position in the electricity grid

The following article is an excerpt of information from the Czech standard CSN 73 4201 Chimneys and connecting flue pipes - Design, construction and instalation of heatings appliances - about designing single-layer chimney, multilayer chimney, pressurized and high pressurized chimneys, chimney and air vents.

The following article is an excerpt of information from the Czech standard CSN 73 4201 Chimneys and connecting flue pipes - Design, construction and instalation of heatings appliances about flue gas path designing, connecting flue pipes designing and heatings appliances installation.

Growing Rumex OK 2 - feed sorrel - is by VÚRV Ruzyne engaged for nearly 20 years. Initially the Rumex was observed in experiments later in the field conditions. The oldest stand of the Rumex is twelve years old (2011), grown on an area of 20 hectares.

Construction of the wall is the basic parameter of chimney, which must meet the thermal and technical properties, hydraulic requirements, fire and safety requirements and requirements for mechanical properties depending on the parameters of flue gas and the surroundings of the chimney.