Browse Forums Lighting + Lighting Design 1 Aug 28, 2010 11:22 am I am concerned about the heat CFDL's generate and the inability of placing insulation nearby the fitting. I have been reading by not insulating due to downlights heating/cooling efficiency of the home will decrease, which is something I do not want! This sole factor is swaying me to standard lights. In addition downlights are not airtight (correct me on this). Having 10 in a large room could be as bad as having the window slightly open (draft)? I really want downlights, but only if the above factors can be address. Any advice? Re: I really want downlights BUT... 2Aug 28, 2010 11:53 am sounds like bollocks. Not sure where you are sourcing your facts? Given that virtually all efficiency models used by industry have been shown to be significantly flawed, I would see no basis for this assumption. Re: I really want downlights BUT... 3Aug 28, 2010 12:25 pm Why is it bollocks? You have to leave gaps around your insulation for the downlights, gaps in insulation means energy loss. davidj, this is the primary reason we have not got one downlight in our house. I couldn't see the point in upgrading insulation and and taking other energy efficient measures to have holes every where in the insulation. Once we started looking alternatives, it bacame quite exciting actually, the range of light fittings available are great so I'm looking forward to creating a bit of character and mood in the house. I leave you to fend for yourself, figure things out yourself. Terrence Malick Re: I really want downlights BUT... 4Aug 28, 2010 12:39 pm joles Why is it bollocks? You have to leave gaps around your insulation for the downlights, gaps in insulation means energy loss. Because its pitched as a significant contributor to a decision which is probably so minor as not to make a difference. Remember the space vacated by insulation is replaced by the above ceiling light assembley. There are far more themally inefficient items in construction that all houses possess which makes this a non-issue. Re: I really want downlights BUT... 5Aug 28, 2010 12:49 pm Eve Dweller joles Why is it bollocks? You have to leave gaps around your insulation for the downlights, gaps in insulation means energy loss. Because its pitched as a significant contributor to a decision which is probably so minor as not to make a difference. Remember the space vacated by insulation is replaced by the above ceiling light assembley. There are far more themally inefficient items in construction that all houses possess which makes this a non-issue. But it's not only the space for the lights that doesn't go without insulation. With the new regs, the insulation cannot be within 200mm of the downlight. That's a 400mm wide circle with no insulation with the downlight in the middle. Mulitply that by say 30 or 40 downlights in a home, and that's a hell of a lot of ceiling without insulation and that is a significant contributor to energy loss. I leave you to fend for yourself, figure things out yourself. Terrence Malick Re: I really want downlights BUT... 6Aug 28, 2010 1:00 pm The pots are enclosed in sealed aluminium frames which displace a majority of the volume lost by insulative displacement. If your really worried, you can get fire resistant cups which sit over them and provide the same coverage. Similar to this - http://www.richardcollins.net/images/en ... ht_box.jpg Its what we have in our existing place. Re: I really want downlights BUT... 7Aug 28, 2010 11:07 pm Use ceramic pots to cover downlights. See viewtopic.php?f=31&t=2770&start=20 Also, some LED downlights products claim to be zero fire risk and only require 20mm clearance. do not pay until you are satisfied with workmanship windows require flashing over the head archithrave and up under weatherboards 3 28277 I would be wary. Is you site demilished but nothing else done? Sounds like liquidity problems to me. Our builder did the same. Got hundreds of thousands of dollars of… 2 15391 Sounds like rubbish to me. Ask for the contamination report which I doubt they have. If it's part of a normal subdivision it would have had a contamination report done… 9 5645 |