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Insulating A/C copper line outside

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Insulating A/C copper line outside RichK 06-15-2007
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Posted by RichK on June 15, 2007, 4:28 pm
Hi All,

The foam rubber insulation on the bigger (cold one) copper line from the
compressor to the house, has deteriorated from the sun and weather. Would
like to replace it. It's about 2'.

Is there a special requirement for this insulation, or can a hot water line
insulation be used? This is the stuff commonly found at HD or similar. It
does not look quite the same, as what's on there already.

Regards,

RichK



Posted by dpb on June 15, 2007, 5:38 pm
RichK wrote:
> Hi All,
>
> The foam rubber insulation on the bigger (cold one) copper line from the
> compressor to the house, has deteriorated from the sun and weather. Would
> like to replace it. It's about 2'.
>
> Is there a special requirement for this insulation, or can a hot water line
> insulation be used? This is the stuff commonly found at HD or similar. It
> does not look quite the same, as what's on there already.

It'll work, just won't hold up as well to weather. You can get the
denser stuff at HVAC or plumbing supply.

--

Posted by Richard J Kinch on June 15, 2007, 6:17 pm
RichK writes:

> Is there a special requirement for this insulation, or can a hot water
> line insulation be used? This is the stuff commonly found at HD or
> similar.

Polyurethane foam (like kids' pool noodles) won't hold up to UV exposure.

The black rubber foam is good for 10-20 years outdoors. At Home Depot, at
least around here.

Posted by Meat Plow on June 15, 2007, 7:34 pm
On Fri, 15 Jun 2007 16:28:39 -0400, RichK wrote:

> Hi All,
>
> The foam rubber insulation on the bigger (cold one) copper line from the
> compressor to the house, has deteriorated from the sun and weather. Would
> like to replace it. It's about 2'.
>
> Is there a special requirement for this insulation, or can a hot water line
> insulation be used? This is the stuff commonly found at HD or similar. It
> does not look quite the same, as what's on there already.
>
> Regards,
>

Go to one of the do it yourself places and tell them what you need because
it's made specific for outdoor, in the sun and heat use.



Posted by Kitep on June 16, 2007, 12:18 am

> The foam rubber insulation on the bigger (cold one) copper line from the
> compressor to the house, has deteriorated from the sun and weather. Would
> like to replace it. It's about 2'.
>
> Is there a special requirement for this insulation, or can a hot water
> line
> insulation be used? This is the stuff commonly found at HD or similar.
> It
> does not look quite the same, as what's on there already.

I'm glad you asked, because I've got the same situation myself. I'll just
piggyback off the answers given to you :)



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