15mm or micro bore

[Paulmc]

My system has 22mm from boiler along ground floor same on the up stairs to where it reduces to 15mm this then runs the length of the house, at every rad it reduces again to 10mm micro bore. my question is, do i leave the system that way or is it worth changing the micro to 15mm right up to the rads. is changing to 15mm going to improve my systems performance or am i just wasting money.

cheers

Paul

 

[ollski]

depends...if your microbore is battered or kinked or even half full of sludge then changing it would be a benefit if not then don't bother. It won't hurt anything to go up a pipe size though if you wanted to.

 

[Paulmc]

thank you

Paul