micro bore copper

[CAESAR32]

Anyone used micro bore copper to install heating on a new build or domestic house. How did you go about using it for dropping down to the ground floor rads?

 

[Madrab]

I'll admit, it would be the only time i'd use plastic instead of copper if it had to be microbore, down to its flexibility. Thread down the cavity of a stud wall then use face plates on the wall to provide a neat outlet behind the rad.

 

[CAESAR32]

I understand sadly, not aloud to use plastic.

 

[dilalio]

Why does it need to be micro (or mini) bore? I don't like using anything less than 15mm.

 

[CAESAR32]

Just so its easier for the plasters to cover. I prefer 15mm too.

 

[hazetimesfive]

nothing wrong with 10mm imo

 

[dilalio]

Til it blocks up!

 

[hazetimesfive]

Why would it block up?

 

[dilalio]

Lack of system maintenance... Same reason I have dozens of power flushes to do each year!

 

[polesapart]

Work out your rad valve centres and elbow(solder) or minibend out from wall at correct height and width. Secure pipework, protect as appropriate.

If you then cut the pipes 3 or4" from the unplastered wall and link them with straight pipe on soldered elbows you increase your chances of finding your tails usable when you come back to 2nd fix, after the plasterers and sundry trades have given them a good kicking, which they will no matter how nicely you ask them not to.

Can then enter rad valves neatly on the horizontal. Lockshield drainoff valves on drops of course.

10mm copper fine on a sealed system IMO, if correctly flushed on commissioning.

 

[CAESAR32]

Have done similar to that,I have done similar to the above.have used duct tape for corrosion protection. Though one downstairs rad is on a studwall I have dropped in 15mm and reduced to 10mm on the elbow as it exits the stud wall. Have done this to give the pipes more stability. Should this be ok?

 

[polesapart]

Yes

 

[stardanny]

Why is plastic pipe not allowed?

Daniel

 

[CAESAR32]

The first fix is totally in copper

 

[CAESAR32]

Have done similar to that,I have done similar to the above.have used duct tape for corrosion protection. Though one downstairs rad is on a studwall I have dropped in 15mm and reduced to 10mm on the elbow as it exits the stud wall. Have done this to give the pipes more stability. Should this be ok?

Were as the rest of the rads are on solid walls I have dropped 10mm so can be plaster over. This ok?