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Hi I have 8mm microbore upstairs feeding 4 rads this comes of 15mm straight from the boiler no 22.
question is if I remove all the 8mm and replace with 15mm will it cause me heating issues as I have no 22mm running to the upstairs so it will end up 15mm for all pipes.
I'm running a combi boiler .
Thanks for any advice.
question is if I remove all the 8mm and replace with 15mm will it cause me heating issues as I have no 22mm running to the upstairs so it will end up 15mm for all pipes.
I'm running a combi boiler .
Thanks for any advice.
