Choosing your household appliances and boiler energy efficient helps you save money and reduce energy consumption which helps your environment and therefore the world. Always keep your eye on the energy efficiency chart when buying electronic appliances.
Cutting the energy consumed by heating and cooling in buildings and industry can be achieved through scaling up the use of advanced construction and design techniques and high-performance insulation materials when renovating buildings. Energy use can also be cut by providing better information and control of energy use with intelligent thermostats. They can turn heating off when the set temperature is reached, or even switch off when there is nobody in the building, in particular office buildings. Energy can also be saved by upgrading heating and cooling equipment such as boilers to the latest, most efficient technologies.
European Commision on Energy Efficiency