Refrigerant line insulation - Home Depot vs HVAC supply store?


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Old 05-10-14, 08:57 PM
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Refrigerant line insulation - Home Depot vs HVAC supply store?

Does it matter where I pick up 3/4" copper pipe insulation? I keep reading Armaflex is a respected brand and that I should go to a HVAC store specifically to get it. But it seems Home Depot already carries it? (Armacell being the manufacturer of Armaflex?)

This is the one I picked up: Armacell 3/4 in. x 6 ft. Rubber Self-Seal Pipe Wrap Insulation-HST07812 at The Home Depot

It wouldn't be a problem to return it and get better stuff it's that's what's necessary.

Thanks
 
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Old 05-10-14, 09:25 PM
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What you linked is fine...but don't trust the self sealing if this will be outside (or inside for that matter). Run some foil tape down the seam.
 
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Old 05-11-14, 07:23 AM
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Thanks for the tip. I'll either use tape or pick up some contact adhesive (if it would work over the self adhesive?)

Doing a little more research for 2-3 times the cost I see I can possibly get foam tubing with an R value of 7 (1" walls). It wouldn't be worth it in the long run to invest in that over the 3.3R value of my Home Depot stuff?

Thanks
 
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Old 05-11-14, 08:00 AM
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For replacement, I use contact cement for the long seam. Good quality black duct tape for end joints and black plastic wire ties not too tight for in between. Don't think you need one inch walls for home use but knock yourself out.
 
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Old 05-11-14, 09:00 AM
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Cool thanks, 3/4" walls gets me approximately R4.9-5.3, it's cheaper too.
 
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Old 05-11-14, 09:22 AM
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To be clear, seldom use the presplit stuff. A deep score with sharp razor knife down the center of the lettering does the trick. Good luck.
 
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Old 05-11-14, 10:32 AM
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The R factor doesn't matter, the only reason for insulating is to keep it from dripping.
 
 

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