Heating & air-conditioning

More your energy needs are important (large volumes to be heated, exposed main frontings in north in a cold area, etc) more you may find it beneficial to choose a cheap energy. Even if the initial investment appears high. Amortization will be then an essential point of your reflection.

The conventional ones

The gas

If your house perhaps connected to the natural gas network, it is the most flexible solution since there is no storage, unlike the fuel or propane. You are not served? Propane is a good alternative but you will need a cistern. All the large distributers propose solutions in hiring, you do not have any talk, and the cistern letting appear only one cap of inspection and filling.

Fuel

As for the fuel it is become again one of the most profitable energies. Formerly if one could reproach him his gas emissions, since 1988, its sulfur content were lowered by 0,5 to 0,2% and in 2008 this content passes to 0,1%. In addition, a mask of odor makes it possible to camouflage its characteristic perfume.

The low appearance of the boilers and very low temperature make it possible to obtain outputs of more than 90%. If the initial investment is heavier, amortization is fast. Storage can be air (with vat of retention), buried or in the boiler room (for a tank of less than 1.500 liters) according to the budget.

The current market is directed towards boilers of small power (15 to w) with important outputs. Last innovation in date: the boilers fuel with suction cup which abolish the flues.

Electricity

Finally electricity is the most used energy. Since 1997, EDF and certain manufacturers joined to provide to the purchasers an electric heating good designed and powerful under the label. Thus, any housing equipped with a heating is obligatorily carried out with a strengthened insulation. As for the offer it is declined in three versions. In version 1 the mural heating appliances are visible. In version 2, the heating system is integrated into the jig (floor or roof). Finally in version 3, in addition to the heating, the house has a system of cooling.

Comparative cost of these energies

Energy	Price of 100 in
Natural gas	4,44
Propane rented cistern	9,06
Domestic oil	5,86
Electricity simple tariff (power VA)	14,15
Electricity Doubles tariff (power VA)	12,04

The ecological ones

Thermodynamics: natural heat

Principle: a fluid increasingly colder than the ground or than the air collects heat by heat exchange, then injects it into the house. These systems also make it possible to refresh the air in summer. Two systems cohabit on the market: geothermics and .

Geothermics. Sensors are placed in the garden to approximately 60 cm of depth. The recovered calories pass in a heat pump, which is conveyed in the house by a system of underfloor heating. Disadvantage: on a surface of approximately twice the house, one cannot plant shafts nor of species to important roots

. Here, the calories are recovered in the ambient air. They are discussed by a heat pump which reinject them in the house.

In both cases, the investments are heavier than with the conventional installations. One will count for example in the 110 of the square meter in geothermics. But the invoice of charges is reduced (the calories are free) and these systems can profit from the tax credit intended to support the installations functioning with renewable energies (see framed #808556 energies: tax no-claims bonus). Another asset: removal of the radiators, therefore a space saver and an expenditure in less appreciable.

Heat pumps

On average, to cover 100% of the requirements in heating, the heat pump which is installed for the using heating thermodynamic energies consumes 30% of electrical energy while the 70% remainders are drawn from the ground.

Good namely: The COP, coefficient of performance, indicates the relationship between the quantity of produced heat and the electrical energy consumed by the compressor. If a heat pump has a COP of 3, it produces the equivalent of Wh heating for 1 consumed kWh.

The solar one

The solar one proves more profitable in the areas north of France than in the south, quite simply because one needs more than heating there. Thermal settle in roof and heat is stored in a water tank buffer. One must couple the solar one with either an auxiliary electric heating, or a stove in order to stage the moments when this energy is insufficient.

You can be given from grants and a #808556 tax credit if you choose this mode of heating for your main home (see framed).

Wood

Chimneys with closed chamber. These aircraft function thanks to outlet nozzles located at the basis of the box, which heat the air. The gases resulting from the combustion of wood are recovered to be flarings. What gives a very esthetic side to the flames and increases the output considerably. This last can thus reach 80%. The range, as for it, can exceed the ten hours.

Stoves. The stoves constitute powerful heating installations. They can compensate a traditional heating. They disseminate a soft heat by convection and radiation, and have a good inertia. The stoves known as of mass are manufactured with materials of great inertia, which enable them to accumulate heat and to restore it slowly. They are well adapted to the heating of the houses. In addition, certain models can be seen associating conventional radiators. The output varies according to the models from 60% to 85%. Side , the possibilities go from the traditional cast iron style to earthenware while passing by the metal preparings (copper in particular).

The manufacturers of chimneys and stoves, in partnership the Agency for the development and the control of energy , developed #808556 the Flamme label. It is implemented to the aircraft (closed inserts, chambers, stoves, etc) most powerful in terms of energy efficiency and environmental protection (carbonic limitation of the gas emissions for example). Their installation can be to some extent financed by the #808556 tax credit (see framed #808556 energies: tax no-claims bonus).

Green energies: tax no-claims bonus
You choose a “green” heating? You can be given a tax credit. The amount is equal to 50% of the price of the equipment for the installations functioning with renewable energies (wood, biomass, solar) and the heat pumps. This amount is reached a ceiling to 8.000 for a person alone and 14 700 for a married couple forwarded to a common imposition. To profit from this #808556 nudge in the right direction, construction must be completed between January 2006 and on December 31st, 2009. The installations must be realized by technicians and be the subject of an invoice. Infos: 0114 088 752 or on www.k9soa.net.