Temporary pipework while working on CH (Ed.)

[stephanh]

I have just started on converting existing bedroom into new bathroom. At present the copper pipes for central heating run in floor screed (1960's bungalow) which I am not a fan of. Beginning of next year I shall start on planned extension (hopefully, not yet received planning approval) and then have all central heating pipes run through the roof void. Between now and then I am left with trying to add new radiator for bathroom by teeing off existing pipes (at 3 way valve) just before they vanish into the screed and take them up into the roof void and over to bath area.
Will that work??

 

[terryplumb]

What exactly do you mean by 'teeing off existing pipes at 3 way valve "?

 

[stephanh]

The 3 way valve is close to the floor and is the only location I can join the flow pipe (below the valve itself). The return pipe I can access in the same area.

 

[johnny2007]

Do you mean tee fitting?
So you can add a pipe to an existing one?

 

[stephanh]

Yes, exactly. Add tee fitting before the pipe enters the floor then take the new added pipe up into loft and over to bathroom.

 

[johnny2007]

Yes, do it.
Just try to keep the return to the lockshield side if you can.

 

[stephanh]

Thanks for reply - when all this temporary stuff is finished, I can get a real plumber on the job!

 

[stephanh]

FOOT NOTE
just after last posting the existing boiler started to not start, and has been playing up since. Red flag methinks. Therefore, new boiler as soon as and, if I can find one, a registered engineer to install. This week has been a bit of a whatsit.