BACK CIRCULATION


Postby davelfc » Mon Jun 11, 2007 9:23 am

My plumber has stated that I have Back Circulation on my central heating system. When I turn the thermostat down to zero I still seem to have heating coming through the radiators. Can anyone advise me what is required to fix this problem please?[color=green][/color]
davelfc
Rank: Labourer
Progress to next rank:
0%
Posts: 1
Joined: Mon Jun 11, 2007 9:20 am

Sponsor

Simply Build It

Postby DavidB » Thu Jun 14, 2007 2:46 pm

This is caused by hot water backfeeding from the hot water return and should only happen when your boiler is heating your water.
I solved this problem by turning off each radiator one at a time so that only one was closed at any time and running the system. You can then identify the radiator through which the back feed is flowing ( no rads getting warm). You then need to put a non return valve in the return pipe from that radiator that allows the water to flow away from the rad but not to it.
Because of the way some rads were teed in my system there were 2 rads that needed NR valves.
Best of luck.
DavidB
Rank: Labourer
Progress to next rank:
0%
Posts: 1
Joined: Thu Jun 14, 2007 2:32 pm

Display posts from previous
Sort by
Order by



  • DIY How to Project Guides

  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!



 


  • Related Topics