Current energy In our house we use four types of energy. We use gas for hot water to shower, dishes and to cook. The electricity is used for light and equipment. Water in the bathroom for shower and washing, cleaning, cooking and dishes, plants, washing machine and heating. Wood on occasion for the fire place. In the chart I show you the use of all current types of energy in my house. 50,25 % we use for heating; 18,62 % for shower. Also interesting is that 43,24 % is going to the government by tax and fee. So there is a lot to win by insulation and reuse of water for the shower, toilet and washing machine. (2021: In my calculation of the profit of insulation where there was e reduction of 80% of the gas, the netto profit is 31%)