How To Seal Where Ac Line Enters Home - HVAC - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > HVAC

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 10-26-2009, 01:25 PM   #1
Member
 
Join Date: Dec 2008
Location: Washington, DC
Posts: 355
Rewards Points: 250
Default

How to seal where ac line enters home


All- When the AC was installed in my brick home (before we were the owners), the techs made a larger hole than was necessary, or is common in the neighborhood. To repair it, they just embedded a chunk of brick in a bunch of mortar. Unfortunately this fix only lasted about a year. I notice on many of the homes in my neighborhood, this area is sealed nicely and cleanly with some sort of black material.

For the pros, hopefully, what do you guys use? Specifically in the case of a brick house.

Thanks!

Advertisement

stubits is offline   Reply With Quote
Old 10-26-2009, 01:38 PM   #2
Member
 
Join Date: Nov 2006
Posts: 291
Rewards Points: 250
Default

How to seal where ac line enters home


Quote:
Originally Posted by stubits View Post
All- When the AC was installed in my brick home (before we were the owners), the techs made a larger hole than was necessary, or is common in the neighborhood. To repair it, they just embedded a chunk of brick in a bunch of mortar. Unfortunately this fix only lasted about a year. I notice on many of the homes in my neighborhood, this area is sealed nicely and cleanly with some sort of black material.

For the pros, hopefully, what do you guys use? Specifically in the case of a brick house.
Never let the actual copper lines touch ground or the masonry wall. They need to be insulated from any contact that could result in corrosion. It sounds like a "hack" installed that system. I'm sure a pro could do a better job and it shouldn't cost too much.

I'd use a Thermal Thimble. It's a professional way to run refrigerant lines thru a wall.

Advertisement


Last edited by hennyh; 10-26-2009 at 01:44 PM.
hennyh is offline   Reply With Quote
Old 10-26-2009, 01:41 PM   #3
Member
 
Join Date: Dec 2008
Location: Washington, DC
Posts: 355
Rewards Points: 250
Default

How to seal where ac line enters home


Interesting. I just googled it and can't find anything. Do you have a weblink? What exactly is it?
stubits is offline   Reply With Quote
Old 10-26-2009, 03:21 PM   #4
Member
 
Join Date: Nov 2006
Posts: 291
Rewards Points: 250
Default

How to seal where ac line enters home


Here's what they look like. Sorry, they're called Thermo Thimbles.

http://www.comfortgurus.com/product_...oducts_id/2188#
hennyh is offline   Reply With Quote
Old 10-27-2009, 07:23 AM   #5
Member
 
Join Date: Dec 2008
Location: Washington, DC
Posts: 355
Rewards Points: 250
Default

How to seal where ac line enters home


Henny-

That looks like an excellent product, but it simply won't work here. It looks more geared towards new work, where as our AC line has already been run. Also, the hole seems to be a bit too large for this.

Is there a good expanding foam, silicone, putty, etc. that is used?
stubits is offline   Reply With Quote
Old 10-27-2009, 07:32 AM   #6
Newbie
 
Join Date: Oct 2009
Posts: 20
Rewards Points: 10
Default

How to seal where ac line enters home


Thumb gum.

http://www.comfortgurus.com/product_...oducts_id/2160
Ebbo is offline   Reply With Quote
Old 10-27-2009, 07:33 AM   #7
Member
 
Join Date: Dec 2007
Location: Baltimore, MD
Posts: 1,802
Rewards Points: 1,000
Default

How to seal where ac line enters home


Quote:
Originally Posted by stubits View Post
Henny-

That looks like an excellent product, but it simply won't work here. It looks more geared towards new work, where as our AC line has already been run. Also, the hole seems to be a bit too large for this.

Is there a good expanding foam, silicone, putty, etc. that is used?
http://www.computercablestore.com/Du..._PID43865.aspx
jerryh3 is offline   Reply With Quote
Old 10-27-2009, 07:46 AM   #8
Member
 
Join Date: Dec 2008
Location: Washington, DC
Posts: 355
Rewards Points: 250
Default

How to seal where ac line enters home


Excellent. Ebbo, Jerry, are both those products OK outside? Will they prevent water intrusion?

Henny- I missed something in your first post. You're right, this system was installed by a total hack, but it works more or less OK. I need to re do much of the ductwork inside to optimize things. Fortunately the copper pipe is insulated, so no direct contact with the masonry. Thanks!

Advertisement

stubits is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Capacity loss with line size Einride HVAC 1 06-29-2009 04:10 PM
sewer line Master Brian Plumbing 3 05-25-2009 01:53 AM
Replacing damaged BX line in kitchen wall fishnyc22 Electrical 5 02-17-2009 01:40 PM
A facelift for your home Grumpy Remodeling 0 07-07-2004 08:43 PM




Top of Page | View New Posts