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Let me see your pre-wire install pictures!

post #1 of 12
Thread Starter 
Hey guys, I've been lurking on this forum for a long time and can tell there are a lot of incredibly knowledgable and professional people here who are very experienced.

So with that said, I would LOVE to learn from everyones experiences with their prewire jobs. Any advice I can get will definately be well received. I know enough to know how much I really don't know.

My Main concern is running ENT flexible conduit, I want to make sure I do it right. My house will have a fireplace/TV wall with shelving on either side of the TV. I have a big concern with proper installation in an exterior wall. I need one conduit to go from the TV to receiver location on a shelf. And one to go from receiver location to basement so that I can make a future connection to the WHA receiver which I will locate in the basement electrical room.

In my main living room I will be wiring for 5.1. I will be using the Mid-Level HTD system and locate that in the basement and wire appropriately for that with 3 zones on the second floor, one on main floor, and reserve two for the basement when I choose to finish it. It's 6 source compatible but I can only think of how to use 3 sources on it haha, I guess that's a good problem to have. I will be using 2 AirPort Expresses so that my wife and I can stream from our iphones seperately and 1 source for my HT amps Zone 2.

Oh and I also am unsure exactly what size conduit I should use, will 1" be larger enough? What have you guys used and what are your thoughts?

Thanks in advance guys!
post #2 of 12
Smurf tube is easier to work with. You can leave it long enough that if you decide later to locate the equipment at a different level on that wall, you can make the opening at that point for a "Old Work" or "Smart Box", then cut the smurf tube and terminate it into the box. Problem with EMT, is that you better know to the T where you are going to locate the equipment, because once you have the walls closed up, there is no going back.

And always, always go to the largest size you can get, due to you may only think about pulling that one HDMI, one composite up there, due to you are going to do all of the switching at the AVRS, then find out after you get all of the equipment, now you have to pull a couple more HDMI's or Composites, because you do not want to go through the hassle of pulling Cat-6 for the short run.

Someone earlier did post this HDMI from Rainbow Fish http://rainbowfishcorp.com/Fiber-Optic-HDMI.html Only drawback is, that you have to have equipment with a USB interface, where the Receiver is getting plugged into, plus it is a costly option.
post #3 of 12
Thread Starter 
I am finding it difficult to find shorter lengths of tubing, but I have a few people looking into it for me. No rush at this point and Home Depot only sells 3/4".

I will definately not even consider EMT, but as far as size goes, I'm hoping 1-1/4" will be big enough, which is why I am waiting for responses with peoples experiences.

Thanks for the reply though.
post #4 of 12
Your local electrical supply stores have all sizes of flexible ENT PVC conduit, blue and orange, and fittings and brackets.

Can you run the conduit from the family room to the mechanical room? Do you have an attic, to add a chase from the attic to the basement mechanical room?

Cocoontech forums have lots of prewiring pictures.
post #5 of 12
Thread Starter 
Yes I will have an attic. Why would I need to run a chase to it? Maybe not a bad idea in case something on the second floor needs replacing I guess.

I've only checked a couple stores so far but they only sell the conduit in huge 160' rolls. Search will continue.
post #6 of 12
Quote:
Originally Posted by dankuz View Post

Yes I will have an attic. Why would I need to run a chase to it?

For all those future things we don't know about.

For 2-floor houses with basements (unfinished or with drop ceilings) it's easy to add new cable to most locations on the first floor. From an attic, it's easy to add cable to most locations on the 2nd (top) floor. It's getting the cable from the attic back to the basement (where the equipment usually is) that's the hard part.

Quote:


I've only checked a couple stores so far but they only sell the conduit in huge 160' rolls. Search will continue.

Not that huge. You can probably find several runs to make, and then find use for the rest. Run from basement to attic, from attic to an outside box facing the back yard, etc.

Jeff
post #7 of 12
Thread Starter 
Quote:
Originally Posted by jautor View Post

Not that huge. You can probably find several runs to make, and then find use for the rest. Run from basement to attic, from attic to an outside box facing the back yard, etc.

See, that's the kind of idea I was looking for. It does make sense to install a run for outside.

What size conduit will work best for my purposes?
post #8 of 12
Quote:
Originally Posted by dankuz View Post

See, that's the kind of idea I was looking for. It does make sense to install a run for outside.

What size conduit will work best for my purposes?

1" or larger is better, especially to A/V areas where HDMI replacement cables may be needed in the future...

I ran flex conduits to:
  • Service Entrance (telco/cable)
  • Near Back Patio (to service future pool / patio area)
  • Back Yard Equipment Area (future pool / pond controls)
  • Office / Study built-in cabinets
  • Family Room A/V cabinet
  • From A/V closet to attic

Doing it over, I probably would have done a few more.

In my theater, there are conduits between the rack/attic, rack/projector, and rack/screen wall...

Jeff
post #9 of 12
dankuz-

Running flex conduit as everyone says is a great suggestion. I kick myself in the a$$ everyday because I failed to do that!

I have a 2-story house and trying to find connecting walls and make sure no obstacles are in the way in order to get to the attic (for second story drops) are not fun...trust me!

Only thing I would caution you on is to check with building inspection or whatever to see the max size you can drill a hole in your walls / studs for running the conduit. I would assume 1 inch would probably be ok but I am sure they do have sizes they would not allow (due to weakening the structure).

Also, for jautor or anyone else, would it be ok or advisable to run regular pvc conduit vs flex conduit if you have a straight run up to the second story?
post #10 of 12
The gray PVC NMT rigid conduit is much cheaper. I've read that it can be bent with heat.

Lining up the floor holes in the chase may be difficult, if floors are present between stories.
post #11 of 12
Quote:
Originally Posted by Neurorad View Post

Lining up the floor holes in the chase may be difficult, if floors are present between stories.

Not on new construction with the walls open. You could basically take a hole saw into the wall cavity and drill up or down between the floors...doesn't seem to difficult to me. Now existing walls in place might be a bit more difficult to drill but I would be willing to try for new construction if I had it to do it all over again
post #12 of 12
Quote:
Originally Posted by jautor View Post

Doing it over, I probably would have done a few more.

it's like I told my dad when he was building his retirement home.

Think about all of the times over the many years and many homes you lved in where you busted your butt because something wasn't where it needed to be and all of the time and added expense was expended to work around the issue.

After much discussion where we imagned ourselves in each room as well as facing each outside wall (on each level) I had him add lots of additional electrical outlets in places that made total sense once you really thought about each area in greater detail... And not just in each area alone but each area at night or day in the summer winter spring fall ... Holidays ... With several weeklong guests etc etc.

Like one examle was to put outlets near/under all the windows at ground level for Christmas lighting and/or just dramatic effect lighting. Electrical under the eventual driveway near a big tree that would be the centerpiece of a planting bed... Near the crawl space entry and other strategic locals in the backyard.

In the end it made the most sense to put all the outdoor runs in its own panel located next to the main house panel. I also had him put the vital in-home circuits in yet another panel so it would make it much easier to add a reasonably sized 'whole house' generator that much easier if such a thing made sense in adding. Sure there was added expense to my changes but not nearly as much as it would cost to fix once the home was wrapped in brick!!

What he really wanted from me was some 'smart wiring' advise ... Which I also provided but my input on his electrical plan (his expertise) really impressed him. Thinking back on this makes m smile... Even thou he passed away of a sudden heart attack just months before they were finished with the home.
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