How to heat the house with geothermal energy saving money
Geothermal and domestic heating. A combination that research and proposals of the companies begin to offer as an opportunity for residential. To be honest, systems of this type are already quite common in Northern Europe and the United States, while in Italy they are slowly ushering. A big hand, in this sense, is providing the introduction of targeted incentives, such as the 55% deduction for heating.
Choose a geothermal system, you're guaranteed a comfortable home environment, pleasantly warm in winter and cool in summer, using an environmentally friendly technology and advantageous from the economic point of view. The possibility of producing, even cold water for cooling during the summer, makes geothermal plants the ideal alternative to traditional systems. The big "plus" comes from the fact that a geothermal system incorporates a single system functions normally delegated to two different devices, ie boiler for heating and air conditioning to cool.
If appropriate for the characteristics of the town, a geothermal plant "monovalent" is able to heat and cool a building without the aid of other equipment. The alternative is to combine this solution with solar thermal systems or with condensing boilers, under the "bivalent".
The costs. To introduce the geothermal you spend the same digits required by a modern heating system gas or oil, good quality. For a surface area of about 150 square meters, the investment (price of 2011) is around 20,000 Euros (installation and supply system).
At constant surface since the costs for the construction of the plant are all similar in the case of a geothermal plant with horizontal probes. If you were to opt for the solution with vertical probes, the figures tend to rise, but are still amortized over a short period of time. Ilrisparmio average consumption of a traditional heating system to natural gas is 60%, a percentage that grows in the case of systems with diesel or LPG.
With a geothermal heating also does not need a chimney, or for connection to the gas network, also eliminating costs such as smoke control for the boiler and its cleanliness. Furthermore there is no longer the need to have a room for the "central heat" for plants that exceed 35Kw, so as to acquire the control systems of gas leaks and dedicated local.
Other significant detail, the geothermal resource is available throughout the country. Particular types of land, or the presence or absence of groundwater or hydrogeological constraints, determine the technical feasibility of such facilities. Geothermal plants can be installed anywhere, at any location and at any altitude, both in individual houses with garden in apartments or condominiums, with the only need to use a system of distribution of the low-temperature heat to the floor or wall. Even in the high mountains savings achievable with a geothermal heat pump is even greater, since the lack of oxygen supply to drops considerably the thermal performance of fuels.
Recommended for all new buildings, geothermal energy can be realized also for the buildings of the old building. Obviously, the convenience and feasibility of a geothermal plant are to be analyzed case by case. It should also assess the availability of sufficient space for the building site and for the installation of the probes.
In any case it is recommended to install the system in the process of renovation of the building and the heating system. A convenient choice for all existing buildings that use boilers expensive and polluting fossil fuels, such as oil or LPG. Another discriminating factor to consider is the quality of the thermal insulation of the 'building. A well-insulated building is a prerequisite for the correct sizing of the geothermal plant, which ensures good levels of comfort and energy savings.
Composition of a plant. A geothermal system for heating and cooling is a condo than a single house, assumes fundamental elements:
The heat pump, which is installed inside the house or building.
A geothermal probe, placed in depth both vertically and horizontally, for the exchange of heat with the ground.
A system of distribution of the low temperature heat inside the apartment, which may consist of radiant panels, floor systems, or air vents. In the case of a floor system water circulates much below (25 °) of the normal operating temperatures (35 °), resulting in additional cost savings.
At a technical level, is dug a hole in the proximity of the house, made invisible after the construction, where a probe is installed uptake with a perforation diameter of a few centimeters, so as to allow the exchange of heat with the ground. The installation depth and the number of geothermal probes ranging from 50 to 150 meters, depending on the heat demand. A level of timing, the realization requires approximately 3-4 days.
In spite of conventional ones, the geothermal plant has a life cycle much longer. A traditional boiler must be replaced after 20-25 years of norm while in a geothermal plant, however, is sufficient to change the heat pump, while the pipes are guaranteed by the manufacturers even up to 100 years!
The geothermal energy for home heating is therefore a solution rich in benefits, economic and environmentally sustainable. Excellent suggestion for Italian families, struggling with rising rates of methane and also of other fossil fuels. We consider this method as a viable alternative to traditional systems for both new homes and for existing buildings.
02/12/2012
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Translated via software
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Source:
Italian version of CercaGeometra.it