Pipework questions

[stew]

so its only the boiler side that needs commissioned not the pipework to the radiaters etc? Im thinking about replacing a microbore heating system with a combi boiler but have been told i cant use same pipework for the combi. Can i fit the rads and do the pipe work to them and get a corgi reg guy to fit and connect up the boiler/flue/gas pipes etc and still have the system commissioned?

 

[fitz1]

Why cant u use exsisting system.Drain it down and pressure test it with air.

 

[oilman]

Why cant u use exsisting system.Drain it down and pressure test it with air.

Better block the feed and vent, then do a hydraulic test.

 

[stew]

the system is fine and works perfecly as it is but i was told that for combi system installation 15mm pipe is the smallest pipe size you can use is this not the case?

 

[kevplumb]

no

as long as it's not coming straight off the boiler

 

[stew]

ok so say i leave the rads and CH system pipes and just let corgi guy do his thing wi fittiing the boiler and connecting it to the microbore and that.... Can i lay the water pipes to the shower/ kitchen etc by myself? Im confident enough to do it myself but is there any regulations on that sort of thing that need to be approved?

Also just aside the guys that do this for a living what do you use now fittings wise? Is it still the solder type yorkshire fittings or have most of you gone over to the quick connect clamping system?

 

[fitz1]

U can pipe hot and cold urself.I dont use plastic pushfit .I dont trust them on heated pipes longterm.Also if u fit pushfit dont forget to link ur earthing when using on copper pipe.

 

[stew]

cheers mate