Hi All,
I'm purchasing a house (2 bed semi) which does not currently have central heating installed. as a fairly competent DIY'er and with tight budget, I'm thinking about installing the rads and doing all the pipework myself (leaving boiler/gas installation to a professional). I've also decided a combi boiler would be best for this house and would be installed on the ground floor in the kitchen.
My question is, if I want a flow/return system, whats the best way of mapping out the pipework to ensure sufficient flow to all the rads.
Do I start off by branching upstairs to feed all the rads upstairs first, then come back down, or vice versa? Or do I tee off the feed @ the ground floor and split for both upstairs and downstairs rads at this point.
Also, I'm slightly confused about the pipe sizing. I understand the boiler would require 22mm In/Out, but what I'm not sure of is where I should reduce down to the 15mm to feed the radiators. Do I reduce down straight away at say the first radiator?
Thanks any help would be appreciated
I'm purchasing a house (2 bed semi) which does not currently have central heating installed. as a fairly competent DIY'er and with tight budget, I'm thinking about installing the rads and doing all the pipework myself (leaving boiler/gas installation to a professional). I've also decided a combi boiler would be best for this house and would be installed on the ground floor in the kitchen.
My question is, if I want a flow/return system, whats the best way of mapping out the pipework to ensure sufficient flow to all the rads.
Do I start off by branching upstairs to feed all the rads upstairs first, then come back down, or vice versa? Or do I tee off the feed @ the ground floor and split for both upstairs and downstairs rads at this point.
Also, I'm slightly confused about the pipe sizing. I understand the boiler would require 22mm In/Out, but what I'm not sure of is where I should reduce down to the 15mm to feed the radiators. Do I reduce down straight away at say the first radiator?
Thanks any help would be appreciated