Insulating a copper cylinder

micks_address

Hi folks,

Want to try and improve the insulation on my copper cylinder. Currently have a red lagging jacket on it - but came across this where he's put some foil backed insulation on the tank - then then red lagging jacket then more foil.. would this be ok on a copper cylinder? are there 'better' insulation products out there? Finding the water goes cold a bit quicker than I'd like

https://www.youtube.com/watch?v=tF3SEVHvtA0

Cheers,

Mick

10-10-20

The foil specifically is adding no benefit in this case - you would be just as well off with bubble-wrap alone as there isn't a sufficient air-gap for IR reflection to happen. Any wrap of the tank with additional insulation would be beneficial, especially if it's well sealed.

I'd suggest that the superquilt stuff, even though it's still foil-based, be better than the bubble-foil.

micks_address

https://www.boards.ie/discussion/comment/120411323#Comment_120411323

whats the best lagging jacket to go for? i have a red one already.. could just double up on that?

10-10-20

https://www.boards.ie/discussion/comment/120411725#Comment_120411725

You could, but the issues with them is that they are commonly segmented and still let out a lot of heat.

I did Google to see if there was a better alternative, but these days the spray-foamed cylinder is king so there is little interest in developing a new solution for plain copper tanks.

Phil.x

https://www.boards.ie/discussion/2058290106/insulating-a-copper-cylinder

I've done that about 10 years ago, but not with the two layers of foil, only one directly onto the tank, then the red jacket, after watching that I might put on another outer layer.

micks_address

Added a second jacket today.

https://www.diy.ie/departments/mangers-4-piece-cylinder-water-tank-jacket-h-1067mm-w-450mm-t-80mm/26876_BQ.prd

Can't do any harm. Made sure not to cover the immersion. I'm sure a new insulated tank be better but don't want to go down that road yet. Add some insulation to the pipework as well