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10-12-2008, 12:13 PM
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#1
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Member
Join Date: Nov 2006
Posts: 323
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Halogen recessed light question
I have a set of halogen recessed lights and in the instructions it states:
--The clearance space above the lighting fittings shall be a minimum 1/2" and the lateral distance from surrounding building or insulating material shall be a minimum 11 3/4".
Well how am i going to mount this between the joists if the lateral distance is a minimum of 11 3/4" on each side? The joists are only 16" apart?
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10-12-2008, 12:18 PM
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#2
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Electrician
Join Date: Aug 2007
Location: Connecticut, Litchfield
Posts: 2,015
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Halogen recessed light question
Quote:
Originally Posted by tripower
I have a set of halogen recessed lights and in the instructions it states:
--The clearance space above the lighting fittings shall be a minimum 1/2" and the lateral distance from surrounding building or insulating material shall be a minimum 11 3/4".
Well how am i going to mount this between the joists if the lateral distance is a minimum of 11 3/4" on each side? The joists are only 16" apart?
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Got a part # so I can read it for myself?
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10-12-2008, 12:46 PM
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#3
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Member
Join Date: Jun 2007
Location: South Carolina
Posts: 3,313
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Halogen recessed light question
Contact the manufacturer and ask them. They wrote the specs.
Personally, I would have no issue with installing them as you intend in my own home, but in someone else's, that would be another story. They do get awful hot.
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10-12-2008, 12:57 PM
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#4
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Member
Join Date: Sep 2008
Location: Oregon
Posts: 1,497
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Halogen recessed light question
Get a different fixture or you would need to cut a joist out where the light goes and do some support framing for the cut ends of the joist.
This type of thing is done when installing a chimney up through a ceiling. Sort of like the following but may need to double up on the cross members for better structural support (ask your building inspector)...
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10-12-2008, 01:04 PM
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#5
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Member
Join Date: Nov 2006
Posts: 323
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Halogen recessed light question
Quote:
Originally Posted by Billy_Bob
Get a different fixture or you would need to cut a joist out where the light goes and do some support framing for the cut ends of the joist.
This type of thing is done when installing a chimney up through a ceiling. Sort of like the following but may need to double up on the cross members for better structural support (ask your building inspector)...

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Yeah, I'm not doing that, that's ridiculous.
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10-12-2008, 01:05 PM
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#6
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Member
Join Date: Nov 2006
Posts: 323
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Halogen recessed light question
Quote:
Originally Posted by chris75
Got a part # so I can read it for myself?
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No I do not. The instructions are exactly as I printed them.
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10-12-2008, 01:26 PM
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#7
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Member
Join Date: May 2008
Location: Near Philly
Posts: 1,955
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Halogen recessed light question
Dimensions don't sound right; only 1/2" above yet >11" on the side? Doesn't heat rise? Why less above than laterally? I bet there is a conversion from metric to SAE that got screwed up. Best to call mfg.
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10-12-2008, 02:03 PM
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#8
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Moderator
Join Date: Apr 2008
Posts: 6,520
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Halogen recessed light question
Quote:
Originally Posted by tripower
No I do not. The instructions are exactly as I printed them.
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You don't know the manufacturer or part number? It is printed right on the fixture.
I agree, something sounds fishy with the 11-3/4" side clearance to combustibles, but further investigation is needed to determine if it is in fact a requirement or a mis-print.
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10-12-2008, 02:24 PM
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#9
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Electrician
Join Date: Aug 2007
Location: Connecticut, Litchfield
Posts: 2,015
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Halogen recessed light question
Quote:
Originally Posted by tripower
No I do not. The instructions are exactly as I printed them.
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What is the name of the can your installing? All this info is on the can itself.
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10-12-2008, 02:29 PM
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#10
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Member
Join Date: Nov 2006
Posts: 323
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Halogen recessed light question
Quote:
Originally Posted by thekctermite
You don't know the manufacturer or part number? It is printed right on the fixture.
I agree, something sounds fishy with the 11-3/4" side clearance to combustibles, but further investigation is needed to determine if it is in fact a requirement or a mis-print.
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Nope it's the real deal those are the spec, apparently these things get HOT:
http://www.ikeafans.com/forums/kitch...potlights.html
I may go to HD and get some new ones for the bath. I could use these in the garage or take them back but the requirements are ridiculous.
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10-12-2008, 02:39 PM
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#11
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Electrician
Join Date: Aug 2007
Location: Connecticut, Litchfield
Posts: 2,015
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Halogen recessed light question
Quote:
Originally Posted by tripower
Nope it's the real deal those are the spec, apparently these things get HOT:
http://www.ikeafans.com/forums/kitch...potlights.html
I may go to HD and get some new ones for the bath. I could use these in the garage or take them back but the requirements are ridiculous.
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What was so hard about posting the lights are called blixt made by ikea?
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10-12-2008, 10:17 PM
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#12
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Moderator
Join Date: Apr 2008
Posts: 6,520
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Halogen recessed light question
The requirements aren't ridiculous if they get super-hot. After long term exposure to high heat, framing lumber will become much easier to ignite simply by temperature as it loses nearly all of its moisture content.
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10-12-2008, 10:28 PM
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#13
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Electrical Contractor
Join Date: Sep 2008
Location: Delmarva
Posts: 3,130
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Halogen recessed light question
I would not consider using any ight that would get so hot to require such clearances.
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10-12-2008, 10:34 PM
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#14
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Member
Join Date: Nov 2006
Posts: 323
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Halogen recessed light question
Quote:
Originally Posted by thekctermite
The requirements aren't ridiculous if they get super-hot. After long term exposure to high heat, framing lumber will become much easier to ignite simply by temperature as it loses nearly all of its moisture content.
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It's ridiculous that in most circumstances I would have to construct a sub- ceiling just to use a few halogen lights. Better just get some lights without the stringent requirements.
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10-12-2008, 10:34 PM
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#15
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Member
Join Date: Nov 2006
Posts: 323
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Halogen recessed light question
Quote:
Originally Posted by kbsparky
I would not consider using any ight that would get so hot to require such clearances. 
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+1. That would also be a red flag in my book.
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