system to combi pipework

[thorn]

Hi, any help would be greatly appreciated. In our cylinder cupboard (S plan) there are the 22mm flow and returns from the downstairs system boiler, and then CH 22 flow going back under the floor (aswell as all the other bits), if we were to get a combi put in downstairs, what would be the best way to deal with the pipes upstairs. Obviously cap the feed and vents to the tank etc, but would you connect the flow from the boiler to the CH flow. If so would you just cap the return to the boiler.
Thanks

 

[P J F PLUMBING]

The gsr engineer you employ will advise you of the best way to do this

 

[GQuigley67]

wouldnt worry about it too much whenever i convert from system to combi all existing pipework is either taken out completely or hidden from view

 

[JAP&H]

The gsr engineer you employ will advise you of the best way to do this

Great advice.

 

[thorn]

how very informative.....thanks

 

[thorn]

could anyone actually give a fairly informative answer, been told by a friend (plumber) that if the return to the boiler is capped then the system will still work as the actual return pipes from the radiators still 't' into it under the floor. This is assuming that the flow and CH flow are connected. Is this right or do i need another plumber?

 

[stevetheplumber]

sounds good to me

 

[P J F PLUMBING]

sounds good to me

Im learning a lot from this thead

 

[Simon F]

Hi, any help would be greatly appreciated. In our cylinder cupboard (S plan) there are the 22mm flow and returns from the downstairs system boiler, and then CH 22 flow going back under the floor (aswell as all the other bits), if we were to get a combi put in downstairs, what would be the best way to deal with the pipes upstairs. Obviously cap the feed and vents to the tank etc, but would you connect the flow from the boiler to the CH flow. If so would you just cap the return to the boiler.
Thanks

This doesn't quite add up, if you have a system boiler then there is no feed and vent pipes to it?
is the new boiler going in the same place as the old one?
if your going combi then the cylinder will come out and all pipe changes could probably be done in the airing cupboard.
the thing to bear in mind is possible wasted hot water in old 22mm pipework
but as already said, why concern yourself with this? let the plumber doing the job work it out.

 

[Destroyer2813]

If a "friend plumber" has told ya why u asking here then

 

[AWheating]

If a "friend plumber" has told ya why u asking here then

because the friend plumber seems to think that theres a feed and vent on a system boiler. LOL

 

[Destroyer2813]

If you get every pipe you see in the airing cupboard and cut em all back under the floor then just link em all together it will work wonders

 

[secret squirrel]

:6::21:

What more can be said................

 

[glenno1]

find f&R at cyl and work from there

 

[Terrydoh]

Use the flow and return at boiler for the heating flow and return.
link the flow from the boiler over to the heating flow in the airing cupboard
Cap the cylinder return under the floor in the airing cupboard, or trace it back to where it tees in and cap it there

Pick up gas if correct at existing position, hot and cold from kitchen sink or nearest services to the boiler.

 

[glenno1]

Ask your gsr plumber