I am having a completely new heating system put in and am going to run all the pipework to the rads myself. my question is: can i tee off from the flow pipe along the way? i know that each rad will be tee'd into the flow and return but does it affect the efficiency if i tee of the flow to route to other areas? logic states that it should make no difference, just dont want to find that one or two radiators aren't getting any hot water!
also looking at the worcester bosch 28i junior greenstar, (which i obviously do not intend to install myself) i live in a 3-bed semi with one bathroom and 7 radiators in rooms with 8 foot ceilings. i think that this boiler should be able to cope?
should be fine to change from microbore to 15mm. the reducer size depends on what size the microbore is, its probably 10mm if its feeding a radiator. but i would not use a reducer, better to cut out the microbore completely and just use a 15mm tee.
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