Copper versus Stainless Steel Cylinders

[Triassic]

With all this talk of cylinders, I thought this piece of research would interest some of you.

 

The research project’s aim was to provide a definitive answer to how effective a copper coil type heat exchanger was, in comparison to that of a stainless steel coil.

 

The results of the report found that using a copper hot water cylinder on an exact like for like specification reduced the heat up time of the water by 28.8% over stainless steel.

 

https://www.mcdonald-engineers.com/sites/mcdonald/files/copper_v_stainless_research_report_-_small.pdf

[ProDave]

Yes, but isn't the choice of Stainless to get long life? Talk about a report missing the mark.......

[Stones]

The main part of McDonalds business is Copper...  I've been round their factory in Glenrothes, a very slick operation, and found them very helpful to deal with.

 

They also make stainless steel cylinders, although that's a much smaller part of their operation.

[Nickfromwales]

That's bedtime reading at 51 pages long, plus most of my books are mostly pictures

Staimless UVC's from Telford also have a lifetime warranty , with the TS's having a 10 year. Not sure why the TS's are less, probably to do with the fact they're usually full of grotty system water or brine. 

[joe90]

58 minutes ago, Nickfromwales said:

That's bedtime reading at 51 pages long, plus most of my books are mostly pictures

Staimless UVC's from Telford also have a lifetime warranty , with the TS's having a 10 year. Not sure why the TS's are less, probably to do with the fact they're usually full of grotty system water or brine. 

 

I'm with you on picture books Nick, do you have one I could borrow on UVC installations ? .

[Nickfromwales]

1 minute ago, joe90 said:

 

I'm with you on picture books Nick, do you have one I could borrow on UVC installations ? .

Nope. As a business initiative I bought them all and destroyed them. 

[Nickfromwales]

If your DIY'ing it, apart from the G3 commissioning, then ask @Stones about the sheer simplicity of buying a pre-plumbed unit . Just be sure you bring D2 into the room at as near to floor level as you can so you've got the required minimum vertical drop AFTER the tundish.  

[dpmiller]

It's an interesting document, and for a couple of reasons. AFAIK UOU Jordanstown has their own energy research centre so it makes me think that the report is more Copper Industries than theirs.

Yet CI don't seem to have it on their website and their opposition- McDonalds- do?

[Nickfromwales]

Hmmm. A conspiracy theory is born. ?