Storage Insulation????

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Robby

Robby

Member
Nov 9, 2008
87
Priddis, AB, Canada
I soon will be istalling 1100 gal. exterior water(heat) storage. I have the option of having it sprayed with urathane, then painting to stop UV or building a large 12'x8'x8' box then using blow in or batts of fiberglass. Both are costly. I intended R40, but does anyone have experience or knowledge how much insulation R rating for temperatures from 85F to -20F. Water temps from 185 to 190F.

Thanks

Robby
 
I guess saying you'll need "a lot" would not be helpful. I have two layers of R30 around my tanks and they are inside. I essentially built a box around my tanks and it makes it much easier to jam as much insulation around the tanks as possible....
 
The more the better. I'd go with the enclosure. Be very anal about sealing it perfectly to prevent convection and air infiltration. Given the delta T involved between storage and the outside air, 12" on the sides and 24" on the top doesn't seem at all excessive.
 
I went with blown in cellulose. 1' on the sides and 2' on top that has now settled to 1 1/2'. It's all in a box surrounding the tanks. It seems to be working well.

Dean
 
Thanks, I think your all correct, it's quit costly but best done right the first time. I have done some work (thinking and calculater), on the box and I guess I will build a semi circuler insulation container. Less than 1/2 the insulation if container follows the shape of tank, 2' on top coming down to 1' on side and bottom.

Robby
 
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