Cold Tank to Hot Water Cylinder

[Invisible-Man]

Hi,
Could anyone advise the pipework size for the feed from cold water tank in loft to the direct vented hot water cylinder in airing cupboard, 22mm or 28mm.

Thanks

 

[clf-gas]

22mm.

 

[Invisible-Man]

22mm.

Would this be the case even if all the hot water is to be pumped!

 

[Terrywookfit]

depends on what size pump you use and also your connection onto cylinder!!

 

[corgiman]

even with a big pump 15mm would be **** poor

anyhow you will be pumping from the cylinder not the CWS so the bigger the better to the cylinder as this will be gravity



mind you I have had a few so I could be taliking *******s so to all the other boyos feel free to rip the urine

 

[Invisible-Man]

depends on what size pump you use and also your connection onto cylinder!!

Most likely 2-2.5 bar pump, have not got cylinder yet, so not sure about connection sizes!

 

[gas4you]

even with a big pump 15mm would be p**s poor

Where did you get the 15mm from Matt? Bottom of the cider bottle?