Instead of one hundred fifteen or twenty years ago

Heat clean. Heating and hot water production constitute two thirds of the energy consumption of households. However, according to Ademe (Agency for energy control), a degree less amounts to 7 on the invoice of a household. With radiators settled for an ambient temperature of 19 degrees in living rooms and 16 degrees in the rooms, anyone can calculate the savings he could thus make. Similarly, a well-maintained boiler generates 8-12 less consumption. Especially if it is equipped with a heating or programming clock Scheduler. But it is especially when the aircraft is showing signs of fatigue that reflection is needed. With a model low temperature, or condensing, only 30-40 energy savings can be achieved, but more, greenhouse gas emissions are reduced. In France, if all boilers more than twenty years were replaced, 7 million tonnes of CO2 would move more in the atmosphere.

However, what many replace boiler heat escapes across "When choosing a heating system, it must first isolate its housing", said Florence Clément, ADEME. By isolating the roof and walls, can save 10 to 20 of energy.

Thank the Sun. Replace its heating can also be an opportunity to make a greener choice. From this point of view, solar energy is easy to pick up regardless of the location of the housing. While the sun shines less to the North and the South. But whatever the location, it works! As well thought a solar water heater installation may cover 50 to 70 of hot water and heating needs. Two options possible: "monobloc" (hot water) and the solar systems combined (SSC) that produce both hot water and a portion of the heating. The disadvantage, for the moment, is of size, price: a solar water heater costing from 5,000 to 7,000 euros but sometimes more depending on the region, the exhibition...

The heat pump can be the alternative: she hunts the heat stored in the soil, air or water to heat the water and the House. And according to Ademe, heat pumps have the wind despite the need to use electricity. But when it consumes 1 kWh of electricity, it renders 3-4 heat for housing. It may also consider to install photovoltaic panels to generate its electricity (10 to 30 metres square depending on the region) that now integrate aesthetic way to the roof of the houses. With 10 square metres of sensors, it produced 900 kWh in Lille or 1,200 in Nice. And when production exceeds consumption, can even sell the surplus to EDF. The concern here is its cost: 8.000 euros for 10 metres square panels. In short, to become an environmental citizen solutions are many, they sometimes require a high budget. But, in addition to VAT at 5.5, on the work, regions, departments, and Ademe or the Anah encouraged by grants green equipment. And public authorities which have put in place a tax credit for certain facilities, ranging from 15 to 50 depending on the equipment (see ). Info Energie of Ademe () spaces are also able to provide advice, or even financial assistance... to encourage green equipment.

Close the valve. Each of us consumes about 200 litres of water per day. The installation of speed limiters, faucets can be divided by two water consumption. Toilets are also great consumers. For a family of four, the installation of a hunt for double command can save 30 to 40 cubic metres per year. It is also sensible to barter his old washing machine. Current models consume only 40 litres for a wash at 60 degrees. Instead of one hundred fifteen or twenty years ago. Moreover, why not to recover rainwater for watering the garden or wash the car A resource free, abundant and easy to store in a House.