Plastic pipe to shower

[Andy Velcro]

Hello

Can I run plastic pipe up a cavity wall (to avoid any joints in out of the way places) to my electric shower with the last inch or so being copper? I read somewhere that combi boilers need the last bit in copper, is it the same principle with electric showers?

Thanks

Andy

 

[kevplumb]

the last connection to your shower can be plastic but use a compression fitting
nothing to do with the one metre rule for any boiler

 

[PEDANTICVINDICTIVEMAN]

If it's an outside uninsulated cavity wall there would be a risk of freezing, conection to shower no problem.