Central Heating - Balancing Radiators

In order to ensure an even distribution of hot water to the radiators in a system you'll need to 'balance the system'. Often the radiators near to the boiler/pump would tend to be warmer than the radiators further away, balancing the system will even out the flow of the hot water.

To do this we use the lockshield valve which is normally hidden under a push on cover at one end of the radiator. Adjusting these valves will regulate the flow of water to the radiator. By partially closing the valves, flow to the radiators nearest the boiler can be more limited than to those further away. To reduce the water temperature at the outlet pipe, the lock shield is closed; to increase the temperature the valve is opened up.

The idea is to get temperature drop across each radiator to be about 12