Benefit of shortening pipe run?

[MarkSmith]

Hi,

I have a combi boiler which feeds a shower via about 8-9m of 15mm pipe. As part of some other work I'm doing, I could possibly reduce this to about 3m of pipe (by running the pipe along one side of the room rather than three). I could also change the run to 22mm pipe.

Is there any benefit in doing this? I'm hoping for a slight improvement in pressure and/or quicker warming-up time when the shower is turned on. I presume changing to 22mm pipe would improve pressure but also lengthen warm-up time, but what about shortening the run? Will the improvement be enough to bother with?

Thanks,
Mark

 

[twgas]

changing to 22mm pipe wont help, however a shorter run will result in a shorter heat up time.

 

[Agile]

Change to shorter 15 mm and insulate the pipe!

You will save water and heat!

Tony

 

[MarkSmith]

Thanks for the replies. Insulating the pipe is an interesting option as it would be a piece of cake to do this (for most of its length, anyway - some's inaccessible). Will that make a lot of difference in an indoor setting?

 

[Agile]

It stores the hot water in the pipe and you dont have to wait to use it the next time ( as long as the next time is within 30 min etc. )

Tony