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Old 12-18-2014, 02:23 AM   #1
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clearance for non-IC ceiling can


I just got a Halo H7T can light for my suspended ceiling (thanks for the recommendation in my previous thread - I didn't know these fit right onto ceiling T-bars).

It's a 6" diameter can, 150W maximum (with appropriate trim ring), and is not designed for insulation contact. Any insulation must be 3" away.

When I have it centered between the ceiling T-bars, it is just touching a 1x4" strapping on the bottom of the joists. What is the minimum clearance required between the can and the wood strapping? I can't find that in the instructions. Thanks.
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Old 12-18-2014, 06:24 AM   #2
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I believe it was/is 1/4 of an inch.

Good luck finding a 150 watt bulb

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Old 12-18-2014, 07:36 AM   #3
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What does this strapping do? Any way to move or possibly notch?
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Old 12-18-2014, 08:38 AM   #4
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Why not just scoot the light over a 1/2"?
How do you plan on getting the panel in place with that type light?
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Old 12-18-2014, 09:14 AM   #5
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Originally Posted by 47_47 View Post
What does this strapping do? Any way to move or possibly notch?

*That 1 x 3 looks as though it is supporting the pipe. If so, you can notch it a little.

You should have put the ceiling tile in first and then put the light in over it. Much easier to get the tile in that way. Measure and cut your hole in the tile on the ground. I like to place the tile over a barrel or a garbage can and cut the hole. That way the tile is supported, there is room for your saw, and the dust and cut-out fall in the can.
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Old 12-18-2014, 10:40 AM   #6
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Not wired yet. Think it's just in there for the pic.
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Old 12-18-2014, 11:23 AM   #7
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Good luck finding a 150 watt bulb
Why is this relevant? The maximum wattage rating is just that: maximum. Any lower wattage can go in the fixture. The safety requirements of the fixture however, are designed with a 150W lamp in mind.
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Old 12-18-2014, 11:42 AM   #8
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Just mentioning it.
Rated for 150 w and the heat it would put out when it's only going to see maybe a 60w or an led.

But you knew that.
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Old 12-18-2014, 02:01 PM   #9
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Thanks everyone. Yes...it's not wired yet...I just put it up there temporarily to check fit.

So I guess 1/2" is the minimum clearance by code? I could move it 1/2" to the left. It will be visually noticeable that it is slightly off-center, but that wouldn't be too bad, so it's an option.

Actually, if I can find a 150W halogen reflector bulb of allowable width, I likely will put it in there...I want maximum light and I prefer the light quality of halogen over anything else.

I think notching out 1/2" from the 1x4 strapping is an option too. The strapping actually isn't holding up the pipe. I think the purpose for these is to prevent the floor joists from twisting under heavy load. Although I've read a few other alternate explanations about why builders place them there in the first place.

Thanks.
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Old 12-18-2014, 02:13 PM   #10
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Install a 2 X blocking the same width as the joist and that strappings not needed.
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Old 12-18-2014, 03:50 PM   #11
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Quote:
Actually, if I can find a 150W halogen reflector bulb of allowable width, I likely will put it in there...
You don't want to do that, the glare from it would be horrible.

But you won't find that bulb anymore, unless it is a specialty bulb. Color is a specialty, so you could get it in red, blue, green etc. :-)

You didn't say how many tubes or total wattage your 48" fluorescent had, but a you will not need the total wattage of that 48" fixture to have better light when using a reflector type bulb.

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