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Each system has its advantages and disadvantages. What is the best technology must be evaluated case by case, without prior exclusion of technology.
Natural gas is the most environmentally friendly fossil fuel, especially when it is burned in a boiler with high efficiency heat recovery. However, it requires that the gas network. In addition, perhaps the [link widoczny dla zalogowanych] gas should be used to produce electricity.
Moreover, to be a consideration, [link widoczny dla zalogowanych] a house can [link widoczny dla zalogowanych] be viewed as our third skin, while our second skin is made up of clothing. Strengthening of two skins can save a lot of energy emissions, money and CO2. The third skin can be improved by a maximum insulation, excellent tight construction, the use of solar heat by smart windows, and ventilation with heat exchanger. The second skin can be improved by simply wearing an extra sweater! This allows you to set the thermostat a little lower – we know one result in an energy level of a few percentages less per year.
District heating is a central CHP plant is only efficient (compact) urban areas where buildings have been sufficient to heat demand. Therefore, the houses are more isolated, less interesting it becomes. Only in cold climates, the heating demand is still high enough to justify the investment in district heating. Important aspect: if the existing district heating network, reduce the heat demand for housing (for example, improved insulation) is still a good idea, because new technology allows you to produce more electricity for less heat.
Until [link widoczny dla zalogowanych] 250 years ago, [link widoczny dla zalogowanych] wood and peat are the only way to heat a house. Currently, there is a growing variety of heating systems. It is not easy to formulate an opinion, which is the best system in terms of environment, economy and comfort. However, the ideal heating system for the future really exists.
Solar energy – solar water heaters can be combined with a low temperature heating. A photovoltaic or wind system can be the energy source for electric heating. Neither of the two systems will be able to deliver a great power, they should be used in homes with little heat demand or combined with other sources. Photovoltaic systems have the disadvantage that they produce more energy when the global minimum is required, [link widoczny dla zalogowanych] but solar cooling is an application where the production room will naturally respond to the request.
The [link widoczny dla zalogowanych] oil furnace is a similar system for the boiler, but with a higher rate of discharge. It does not require a network, but a storage tank and the road. The boiler fuel is likely to lose market share in the coming years.
Coal stoves are considered an old-fashioned way for residential heating. However, they are still widely used in many countries. They produce a pleasant and warm atmosphere has a relatively good performance. However, they are awkward to use and CO2 emissions are high. In Europe, the market share of coal as an energy source for heating will probably continue to decline.
Heat pump – For the old two thirds of the energy production environment has a very high yield. However, the land-water heat pump requires a large surface. Should be combined with the low-temperature heating of the house is well insulated, but the investment is the only cost-effective if there is sufficient demand for heat, practical solution for a relatively large buildings in temperate to cold climates. Heat pumps could be use in climates with both heating and cooling needs.
On the other hand, we could use electricity more intelligently. In Asia, the tables of the so-called “kotatsu” have a heating (electric) below and a blanket, and is used to heat just a small amount of space. They are quite comfortable; provide the emotional center of the house and one of the most effective ways possible to provide thermal comfort. [link widoczny dla zalogowanych] A similar system exists in the south of Spain.
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Most coal stoves can also burn wood or wood pellets. The influence of wood pellets in global CO2 emissions requires further investigation. Perhaps the ideal would be that wood is used for storage of CO2 instead of an energy carrier.
Nine possible systems and consideration
In short, it is easy to compare a variety of heating systems used in different climates to provide different forms of life.
Domestic CHP (combined heat and power) is a new technology. It has the [link widoczny dla zalogowanych] advantage that it can [link widoczny dla zalogowanych] fully utilize the capacity of natural gas to generate electricity – an energy carrier of high quality. However, it requires heat and matching the demand for electricity, and can produce too much heat in homes well insulated with the relatively low heating demand.
Mainly nine different systems are used today:
Electric heating has been out of grace for [link widoczny dla zalogowanych] a while in some countries, but today is still considered one of the heating systems of the future. An electrical system can be efficient and cost effective electricity is produced by sources of low carbon, or when heating demand is relatively low – for example, [link widoczny dla zalogowanych] new housing, compact and well insulated.
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