Our Heating System

I asked dad to show me how the heating system for our house works because I think it looks so complex.

He showed me how the heat that comes into our house from the district heating system that we have in the village.
First, the hot water comes into a heat exchanger which heats up the water in our big water tank and measures how much heat we use. there is a pump that takes the cold water from the bottom of the tank and runs it through the heat exchanger and puts the heated water back into the top of the tank. There are two thermometers that show us the temperature of both the hot and the cold water. apparently there is two tanks , one inside the other, the smaller one on the inside is for hot water in the taps, and the larger one on the outside is for the hot water in the heating.

There is a pump that pumps hot water from the top of the tank into the manifold which puts the water into different pipes that go through the walls all over the house and the hot water heats up the walls. The cooler water goes back to the top part of the manifold and then back into the bottom of the tank. There is another pump attached to the manifold that helps to even out the heat in the walls when the other pump stops if the water gets too hot. On the manifold there are little valves on each pipe that are controlled by thermostats in each room. The hot water in the taps separate pipe connected to the top of the tank.

(Dad helped me label the photographs,
to get a better view just click on them.)