Does my plan for pipe run sound ok?

[screech]

Hey guys.


I'm hoping you can have a look over this and tell me if i'm right or not?


Heres a quick layout i've just knocked up with what i plan on doing...





The main run from front to back is 15mm polypipe, with copper stubs up to the rads.
From kitchen to bedroom 1 will be copper, bent up to the rad, as i don't want any joints under that floor as it will not be accessible once finished.


In the hall, i can see 2 larger copper pipes which are the feeds from the cylinder(?), am i right to put these straight onto the main 15mm run, or should i run part of the main run in 22mm before reducing to 15mm?


Also, is there a way of telling which of the 'feeds' is flow and return?




Its a 3 bed bungalow, with wooden floors, with about 10" void underneath, hence the pipework going under.


Currently there is a small boiler in the kitchen, water cylinder in the bathroom, and 2 water tanks in the loft.
Eventually, we will be changing to a combi boiler in the loft. Probably shortly after christmas now.




Any advice would be appreciated.


Cheers.

 

[Deleted member 32524]

If you have heating the now leave it alone. 15 mm main run, better with 22mm, 15mm to rads. Do not connect the hot water supply pipes to the heating system. This is controlled by zone valve/s. It sounds like you need alot of help with this and I cant be ars*d typing it out. Get a local independent guy in. You do all the apprentice stuff like lifting floor boards and the likes. Saves you money as it takes him less time and you may be able to help run the pipework and learn something and be able to then work on your system when it comes to maintenance (excluding your boiler)

 

[Ermintrude]

Same. Plus if it's gravity on push fit... May be ok..... Pressurised and pop! had just finished when the DIY went bad.... Twas a Friday so was off like a rocket!

 

[Gas]

....... you may be able to help run the pipework and learn something and be able to then work on your system when it comes to maintenance (excluding your boiler)

But don't be offended if he asks you nicely to leave him alone so he can crack on with the job or at least agree terms before any work commences that additional time will be charged, time is money as they say.

Personally speaking, if i have agreed to a job/price, then i need to get on with it or it will back my day up