Central Heating Pump System

Central heating is a system through which a building (or some parts of a building) are heated up through the heat produced at one point: the furnace room in a house or a mechanical room in a building. The heat is usually produced by burning fossil fuels and then it is distributed either through air, steam or water.

There are different heating systems, the main ones being: water heating, electric and gas-fired heaters and hydronic and steam systems.

1. Water Heating

In order for this system to work, there are four necessary elements:

Many of these systems in Europe have a double function as they serve both as a heating source for the building and a hot water source for multiple users and devices.The difference is that tankless (demand-type or instantaneous) water heaters provide hot water only when needed since as soon as the tap is opened, cold water is heated and it comes out of the tap. However, storage water heaters are different, as the tank needs to be filled with a certain level of hot water before it can be used.

Electric heating extracts heat from electricity through the use of many devices. This heating mode is usually embedded in a fan air conditioning system that transfers the heat to resistance coils which never work simultaneously in order to avoid major problems with the electric system. The energy is transferred to each tool through a thermostat that monitors the water temperature level and that opens and closes accordingly. When the water is at the desired temperature, it opens and it closes to heat the water more rapidly.

Gas-fired heaters burn gas in a similar way as oil-fired furnaces as it needs to feed the fire under the tank that heats the water which then turns it into gas. The tank will usually wear out quicker than that used in the electric process.

Alternatively, tankless heaters are used and they provide hot water only when needed. A second problem is represented by the fact that the tank needs to reach a high temperature to heat the water and this leads to earlier worn-out.

Since the cost of installing central heating is a hefty investment, consult a trusted heating expert to choose the source of heat that suits your home before the installation.

Hydronic heating systems use either boilers or district heating to warm water and then push it through a pipeline system that transfers the water and heat from the part below the floor to the upper one through a motor driven pump, increasing the temperature in the room. This is a closed system as there is no exchange with the outside: it is always the same liquid which goes through the cycle over and over again. In order to control the water pressure, the system has a sealed expansion tank that collects the water in case of higher than normal pressure. Steam systems work in a similar way, the only difference being the steam used instead of the water.

Structure of the Central Heating Pump System

1. Water Comes Into the Pump

2. Electric Cable

3. Electrical Connections

4. Pump Bleed Screw

5. Water Out of the Pump

The Central Heating Pump moves water around a central heating system: hot water runs in a circle from the boiler to the radiators and to the boiler again. The hot water from the boiler goes through the radiator and releases heat. It then warms up the room, while the water becomes colder, then going back to the central heating pump to restart the cycle.

Here we list some problems (and their quick solution) that you might encounter with your central heating pump.