Do we understand heating system regulation correctly? Do we attach importance to it right? Or do we just pretend to customers that classic "hydraulic regulation can ensure people's correct environment"? Check with us on a fragment of research that already 10 years ago revealed the truth.

The cause of the 30% decline can not be decline in construction output only or postponement of reconstruction because of the worse economic situation, but there must be some evolution in the design of heating systems, when applied heating systems without conventional radiators.

Thermal insulation of buildings promised savings of 50%, but the real savings are 20% or even none, and sometimes we measure the heat consumption higher than before the insulation. The system in some floors does not heat enough and in another floor the system is noisy, although it was was adjusted according to repeated measurements. Is diagnosis able to reveal the causes and is regulation of system able to rectify the situation?

Nowadays there is emphasis on energy savings and utilization of renewable energy sources. Therefore, proper selection and design of the heating / cooling system, which should be also able to provide favourable condition of the thermal environment – thermal comfort, is very important.In this article construction systems, compositions and possible solutions of low temperature floor heating / high temperature ceiling cooling are presented.

As in previous years, we also offer the annual results of sales of heat sources of the last year made on the basis of documents of Association of heating technology companies (APTT).

This paper examines the process of burning piece of wood in the low power fireplace (units to tens of kW). This combustion process is cyclical and what users are most interested in the combustion device, the frequency of fuel to the fire. The paper defines the basic concepts such as burn-up curve and the burn rate that have close relationship to the rate of reloading.

Nowadays there is emphasis on energy savings and utilization of renewable energy sources. Therefore, proper selection and design of the heating / cooling system, which should be also able to provide favourable condition of the thermal environment – thermal comfort, is very important.In this article construction systems, compositions and possible solutions of low temperature floor heating / high temperature ceiling cooling are presented.

Author assesses dynamic behavior of the heating wall panel and the heating floor panel on the basis of mathematical simulations in the CalA software. The model of the wet method of placing was selected for the wall panel heating surface and the dry method of placing (laying) for the floor panel heating surface. The selected method for placing the heating coil pile was the meander in both cases.

According to the results of tests of the Research Energy Centre Technical University Ostrava, each operator of combustion plant can partially affect emissions. For older boilers it is better to give a smaller dose of fuel more often. After adding the fuel it is better to let it burn up, not close the inlets for combustion air.

In this article calculation methods of low temperature floor heating according to the new European standard (EN 1264, 2009) are presented. At the same time, denotations and approaches to calculation of floor heating by the method of Cihelka are compared with the denotations and calculation methods in the new European standard.

Article provides detailed information about leakage control of cooling circuits in heat pumps. Author summarizes the legislative basis of this duty and shows, which heat pumps are involved.

The essence of the combustion process is burning fuel. This is a phenomenon that the authors clearly and wittily likened to the relationship of man and woman. At the same time in the article they explain in detail the technical terminology such as calorific value, combustion heat, humidity of wooden fuel, and the efficiency of common and condensing boilers.

Nowadays there is emphasis on energy savings and utilization of renewable energy sources. Therefore, proper selection and design of the heating / cooling system, which should be also able to provide favourable condition of the thermal environment – thermal comfort, is very important. Warm water floor heating is a progressive way of heating, which decreases operation costs on one hand and creates ideal temperature distribution on the other hand.
Decreasing of energy costs leads to increasing interest in systems with better efficiency and thermal comfort. Utilizing of renewable energy sources along with installation of low temperature heating systems results in decreased primary energy consumption and leads to lower operation costs.
In this article experience with application of the new European standard (EN 1264, 2009) for calculation and design of warm water floor heating is presented. The calculation has been carried out for a reference room in a family house, by means of software with application of floor systems from different manufacturers.

At a European level a Directive of the European Parliament and Council 2010/31/EU on the energy performance of buildings (EPBD) has been released in 2010 whereas the main requirement is to reduce energy consumption in buildings (replacing 2002/91/EC). A set of European standards have been issued for its implementation, eg EN 15232 Energy performance of buildings - Impact of automation, control and management of buildings. In the Czech Republic the Directive was implemented by Act No. 406/2000 Coll. energy management and decree 148/2007 on the energy performance of buildings. The current global trend is characterized by promoting energy efficient technologies. The aim of this work is to summarize domestic household consumption, it´s prediction and analysis of potential energy savings by using the wiring system (BACS).

Concept of energy efficiency buildings provides provable reduction in consumption of energy in compliance with the required user’s comfort. Taking into the account the trend to minimize heat escape and heat loss and increase of the airtight buildings, the installation of controlled ventilation is one of the steps leading to the optimal sanitary requirements and the overall energy efficiency of buildings. Quality indoor environment of energy efficient buildings, as well as the maximum level of comfort in this case is a controlled ventilation system with heat recovery and hot air heating. This article presents partial monitoring in situ measurements of selected parameters of the indoor environment during the operation of the upper and lower distribution system of hot air heating and ventilation in the selected experimental building.

In the previous article we mentioned the requirements for proper adjustment of heating system after thermal insulation of buildings. This article is to describe some differences between the ways of heating systems regulation, some bad reflection on the functioning of the central heating system and we will address new opportunities.

Thermal energy savings is closely related to the operation modes of heating, elected by the heat customer. The public knows a simple tool "1 ° C = 6% of consumption for heating, but there’s no further information on how to simplify this translates into their own operating costs. This paper builds on the papers "Heat savings - real, alleged, and misleading" and "Heat savings - Part 2 - How to detect (and provide) a return on investment". It offers a simple tool and answers frequently asked questions about operation of heating systems.