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 Post subject: Pipe insulation
PostPosted: Mon Mar 05, 2018 2:14 pm 
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My boiler is located in my garage, and over the cold period I had no hot water as the piping had frozen. My central heating was fine as it is on a anti-freeze timer. I am looking into replacing the current insulation, which is the basic grey foam stuff. From my research, I have found that the grey foam stuff will not protect against frost, and that I will need to get somthing better like Armaflex. I was wondering what size wall thickness you would recommend? As mentioned, most of the pipework is inside the garage, and then there is a small line that is outside and joins the garage to the house.

It looks like it comes in 9mm, 13mm, 19mm and 25mm wall thicknesses, but they almost double in price.

Should I just go with the highest, 25mm?

https://www.*******.com/22mm-pipe-lagging-armaflex-selfseal-25mm-wall-x-2m-pre-slit-class-o-black-foam


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 Post subject: Re: Pipe insulation
PostPosted: Mon Mar 05, 2018 6:25 pm 
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The thicker the better... Having said that this last week has been the worst for pipes freezing in 30 odd years, might be another 30 years before you need the insulation.

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 Post subject: Re: Pipe insulation
PostPosted: Mon Mar 05, 2018 9:57 pm 
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I'd assume plastic pipe would be better for these kind of situations. Less likey to freeze and can expand slightly.

Dunno really. :dunno:

Anyone got any studies on that?


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