In January I published an article about the upcoming revision of CSN 73 0540-2 Thermal protection of buildings, Part 2: Requirements. I expressed to changes in each individual chapter. Since then there is new development in the standard revision. Some comments by members of the Standardisation Committee No. 43 and by professionals from the April public consultation of the standard were implemented. Some chapters of the standard are nearly unchanged since January, but some have changed in fairly major way.

This paper describes the brief analysis of the quality of heat pumps offered in the Czech Republic. It specifies the importance of improving offer based on the evaluation of heat pumps according to the methodology of the European Heat Pumps Association (EHPA).This also includes the basic conditions for awarding the quality of the European Quality Label for Heat Pumps.

Our serial continues with this low-energy house built with sand-lime bricks. This time, the family house is located not far from Liberec, in the foothills of the Jizera mountains. The surroundings, predominantly rural houses near a protected natural area, influenced the shape of the house. Its location responds primarily to the surrounding buildings and the slightly sloping land.

The article is intended for designers and network operators and aim to help to easily design thermal insulation, without worrying about European regulations and easily realise the insulation design, without lengthy and, in the case of heat transfer coefficients, unnecessary calculations.

National Renewable Energy Action Plans (NREAP) of each EU countries in graphical and tabelar forms. Part three - final energy consumption for heating and cooling and share of RES on the consumption for heting and cooling.

The article introduces the basic requirements for properties of materials using phase change in construction. These substances are known as PCM. Furthermore, the article deals with the possible chemical composition of the PCM, the advantages and disadvantages of phase transitions.

A usual cause of failures and accidents with gas appliances is their use even though service or installation companies have shut them down or the user has been forbidden to operate them any further until their removal.

Article is based on the book "Regulating the practice or how I'm doing." Programming of the control system is described in a logical sequence so as to be applicable to various systems. The intention was to create a "helper in his pocket" for designers, programmers, and assembly techniques of measurement and control.

European and national policy and trends promoting the development and use of renewable energy recently caused a boom for solar systems for DHW and heating in family houses in this country. Whether it makes sense, what are the problems for such systems since we can expect and how to optimize these systems, this post.

The author deals with the consequences of failure to comply with the conditions for safe operation of gas appliances. In addition to project design and implementation pays attention to neglected maintenance of gas appliances in categories B and C.

This paper analyses the duty about chimney and smoke-flue revisions in the Czech Republic. Author shows some disinformation that go with this problem in the public media.

The evaluation of the heating period for the calendar year 2010 is useful for producers and consumers, who work on a January-December regime. It also provides data to energy experts for assessing the operational energy consumption of buildings. It also provides figures for the controlling of boilers, according the Decree 276/2007 Coll.

The paper discusses the alternative heat sources to central district heating for panel buildings. Nowadays, most of the reconstructions of panel buildings cover only the improvement of thermal quality of the building envelope in order to decrease the heat loss and the operating costs of heating. With high-quality insulated envelope it is possible to achieve high reduction of thermal heat loss. Additional reduction of heat loss on the envelope insulation side is very expensive. In order to reach another reduction of operational costs in the building it could be more efficient to change the heat source with cheaper energy.

Based on the observations made at the Prague-Karlov station, the 2009/2010 heating season was a little shorter, 217 days, and the average temperature was 4.3ºC, slightly cooler than the long-term average. The basic characteristic necessary for heating is 3187 dº (19) degree days, so the needs for heating were slightly lower than the long term average.

On November 1st, 2010 the new CSN 73 4201 “Chimneys and flues. Design, implementation and connection of fuel appliances” came into force replacing the standard with the same title and number from January 2008.

Low energy (LEB) and passive buildings (PB) are becoming standard for new constructions in EU countries. They aren't experiments anymore, but absolutely ordinary mass production of sophisticated residential buildings. Only in Germany, Austria and Switzerland there are already thousands of buildings that meet the passive standard and their number doubles every year. The cost of passive buildings is only 5-7 % higher than those of conventional ones, and yet, their consumption of energy and heating is up to 90 % lower! Part 2. about regulation ventilation system.

On November 1st, 2010 the new CSN 73 4201 - Chimneys and flues. Design, implementation and connection of fuel appliances" came into force replacing the standard with the same title and number from January 2008.

The article deals with price comparing of the electric energy suppliers in the regions of the Czech Republic. The graphs in the example shows the difference of the prices for tariff rates D02d and D56d.

The article deals with price comparing of the natural gas suppliers in the regions of the Czech Republic. It is clearly shown in the graphs how to save financial costs with the change of the supplier of natural gas - from the expensive to the cheaper one.