pipework for combi Help and information on all topics relating to your central heating, air conditioning and ventilation issues.

[wanger18]

Hi i have recently purchased a house with no central heating.I was going to do most of the pipework and instalation of radiators myself.I am going to use moslty plastic pipe and pushfit connections for ease and speed.What i am unsure about is how close to the boiler can i take the plastic pipe before it has to be copper (if that is the case).I wont be doing any connections to the boiler myself but just wanted to do most of the labour to obviously keep costs to minimum.Is there a minimum requirement? THANKS

[wanger18]

could any 1 please give me some correct advice? would like to make sure i do the job correctly from the start.Cheers

[The Heating Doctor]

Gas or Oil boiler?

[andf380]

HI wanger18

When we fit a new heating system we tend to use mainly speedfit plastic pipe and speedfit fittings ensure you use inserts and make sure they are all connected correctly the main rule we use is if it can be seen we use copper if not we use speedfit hope this helps Obviously the GAS connection needs to be all 22mm copper and connected by a corgi installer

Andf380

[The Heating Doctor]

but andf380, in the speedfit hand book they give a minimum distance there pipe can be fitted from a boiler and that distance differs depending if it's a gas or oil fired appliance. Plastic pipe should not be used at all for soild fuel appliances.

[wanger18]

hi thanks for the advice.The boiler will be a gas one so is there a minimun distance for that? cheers

[wookey]

I don't believe so. (My previous install was all-hep20 with a combi). The only reason you need to use copper for the last bit is it if it on view and you don't like the aesthetics of plastic.