Complete new CH system - design questions

[SYDDOS]

Re: Vermin - if you think there might be mice don't use plastic pipe

Some people seem to think 'barrier' pipe means barrier to mice chewing and told me so...not so, I can now see, it's a vapour barrier, plastic foil I think. Our mice had our system depressurised within a few weeks thanks to use of plastic pipe underfloor. Keep to copper underfloor or in wall cavities and roofs, or run plastic inside the rooms where you can see the mice at work! We had copper for 25 years, and mice, and no trouble.
Wiser-now Householder (and expert mouse-catcher).

I hear what you and others have said about plastic pipe. BTW some plastic barrier pipe employs aluminium inner tube as an additional barrier.

I must admit that I'm surprised that I cannot find any evidence of past or present vermin in this house, and given the state of the kitchen when I moved in, I would have expected vermin to have taken over. I know it doesn't mean they wont turn up one day.

 

[tamz]

Re: Vermin - if you think there might be mice don't use plastic pipe

I hear what you and others have said about plastic pipe. BTW some plastic barrier pipe employs aluminium inner tube as an additional barrier.

Unipipe. That won't stop them.

 

[GQuigley67]

nothing will stop those pesky vermin ! they are on a mission to sabotage plastic pipes they prefered the old copper ones.

 

[SYDDOS]

I've seen a few posts suggesting that plastic pipe when run under floors/in walls should placed in trunking, but I don't remember if any of the post said which type of trunking.... harden steel, granite rock, my old PE teachers socks?

 

[tamz]

It is just a risk they will chew them and like any other risk should be weighed up before you start. They can and do eat through plastic pipes (usually the fittings) but they are also fond of electric cables and there are not a lot of houses with armoured cable!

 

[Gray0689]

If there a problem with vermin put in the things that plug in to keep them away