• May

    27

    2014
  • 671
  • 0

Circuit Balancing


Equipment Required:

1x Clip-on Thermometer.

The clip on thermometer can be hired from most tool hire companies, this is required so that you can accurately monitor the radiator temperatures.

You could always ask a professional plumbing service to carry out the task for you. A Hackney Plumber can balance heating systems. To carry put this job you will need to switch off the central heating boiler and wait until the system is cool enough to allow the work to commence, as balancing cant be done when the radiators are hot.

1). Firstly, open up each pair of valves fitted to all the radiators in the circuit, (you will need to use a spanner for the lock-shield valve). Hackney Plumbers use portable thermostats for balancing.

2). Start up the boiler and wait until the heat radiates through the system. You will need to go around the circuit and make a note of the order in which the radiators heat up. Write this down. You will some need assistance if you have lots of radiators. This section of the job is quite time consuming and needs you to be really methodical. Once you have completed this you will need to cool the system again.

3). Now start the boiler again and then from your list go to number 1 radiator and shut the lock-shield valve and then reopen quarter of one turn, noting the temperature with the clip on thermostat at the flow and return pipes just below the valves. Make the same adjustments to every radiator in turn until you have done them all. The proof that you have balanced the system correctly, will be the valves say, on radiator number three will be slightly more open than on radiator number two, and so on, to the point that the valve on the final radiator in the circuit will be almost fully open.


The job is very time consuming but it will make a massive difference to your heating, and its efficiency.

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