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Old 02-05-2017, 02:14 PM   #9560
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Join Date: Oct 2004
Posts: 1,870
Should be both 1/2 thickness.
But some companies practice 3/8 insulation for the discharge pipe, return pipe is 1/2.

I have some question, for the bro here. The quote I have stated:
** Free upgrade to half inch Armaflex/K-Flex Insulation for copper pipe.

However when I supervise the installation, I realised that some pipes were using the 3/8 inch pipe for the thin copper pipes which the installer mentioned is for air return.

Only 1 set of copper pipe (the thicker G22) was wrapped using the 1/2 inch insulation.

Is this a cause for concer, is this normal due to space constrain in the trunking?
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