DIY Doctor

Main navigation

Work on DHW Without Draining Down Combi Boiler?

Postby Zacccc » Wed Dec 03, 2014 4:06 pm

After some work on my combi CH system I've just refilled it and put inhibitor in. I've just discovered that I've got a dead leg on my DHW system which I'd like to take out. Is it ok to switch off the boiler, shut the main stopcock into the house, open all the taps in the house to drain the domestic side and then work to remove the dead leg from the DHW system or do I have to drain the whole CH system (with inhibitor!) as well. I don't imagine that I'll have to drain the boiler as well but I'm not sure so I thought I had better check on here. Thanks.
Rank: Ganger
Progress to next rank:
Posts: 82
Joined: Mon Apr 26, 2010 12:49 pm


Simply Build It

Postby proptech » Wed Dec 03, 2014 6:44 pm

Hi Zacccc

That'll be fine, no need to touch the heating.
Rank: Foreman
Progress to next rank:
Posts: 415
Joined: Wed Dec 05, 2012 11:22 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