Browse Forums Building A New House Re: CFL down lights are not what they seem to be apparently... 10Feb 22, 2010 6:07 pm Build thread: viewtopic.php?f=31&t=34120 Handover 23 Dec 11 Squatting 21 Dec 11 Fixed 12 Oct 11 Plastered 31 Aug 2011 Framed 7 June 2011 Site Start 7 Feb 2011 Land Titled 18 Jan 2010 Land Deposit 25 Jun 2009 Re: CFL down lights are not what they seem to be apparently. 16Apr 23, 2010 9:40 pm Rudy - Low voltage tungsten halogen lamps - a house using them would use 3 times *more* energy compared to use of the old incandescent lights - last paragraph on page 6. Who would like 3 times higher energy bills (for lights part) than using the old incandescent lights just to look pretty considering electrical energy will be perhaps much more expensive in the not too distant future? Me for 1. You will also find it isn't quite 3 times, closer to double averaged out over table 2 in your reference. They also seem to base everything on 50W DLs. Nearly all builders are providing 35W DL as standard nowadays providing a 30% reduction to this straight away. It also assumes the total house is 100% down lights, which I believe is becoming less common. Downlights through living areas and CFLs in other areas seems more popular. Assuming this is 50-50, the numbers would be closer to 1:1 or better. The way interior lighting is used is equally as relevant to power consumption. 4 DLs may be required to replace 1 battern fitting however generally these lights will be run in pairs and in most instances only one pair need be on at any one time. Rudy - regulations/standards in Au hmmm ... what regulations... - page 7 etc Aren't we regulated enough? I have read we are the most regulated country in the world! Instead of regulating lighting specifically I believe lighting should be considered as part of a new house energy assessment. That way if you wish to have 100 down lights in your house you will need to offset this with perhaps a 2kw solar array on the roof. That way all the good or bad choices made when constructing are considered and balanced fairly. Re: CFL down lights are not what they seem to be apparently. 17Apr 23, 2010 10:26 pm The original pilot programme previous to the distribution of free CFL's was conducted in an inner western sydney suburb. this was due to the fact that it was a radial feed line from the substation and therefore easy to analyse recorded data. What that programme determined was that there was very limited benefit from running CFL over incandescant globes. Firstly the electrical demand from domestic lighting is very small. Secondly, incandescant globes produce more heat than CFL (by function of the energy they use), therefore in winter the lack of heat produced by the incandescant globe is required to be added via room heaters. Sometimes energy producers and distributors will promote "clean" or "green" energy for marketing and corporate image, rather than real environmental benefits............just sometimes. Re: CFL down lights are not what they seem to be apparently. 18Apr 24, 2010 9:53 am Downlights I'm not sure about, but for regular light bulbs, buying an incandescent instead of a fluoro will cost you $100 more over the life of the fluoro. And in that time you will have replaced the incandescent 3 or 4 times. Re: CFL down lights are not what they seem to be apparently. 19Apr 24, 2010 10:57 am I was just talking about the CFL's to a bloke at work just now! He also said they take a bit of time to "charge up" to get full brightness. I'm worried about this as I was going to have them all through the place, now, I am having second thoughts. But what can I do? By law, 80% of my house needs to be CFL, noooooooo! Re: CFL down lights are not what they seem to be apparently. 20Apr 24, 2010 11:20 am Nathan SteelFab I was just talking about the CFL's to a bloke at work just now! He also said they take a bit of time to "charge up" to get full brightness. I'm worried about this as I was going to have them all through the place, now, I am having second thoughts. But what can I do? By law, 80% of my house needs to be CFL, noooooooo! It's not that long - I would be surprised if you would notice after a minute or two. If lighting power is a worry you can get HWCFL - I've got a 48W (240W Equiv) one and it shines like the sun (hurts to look at it) in under 30 seconds! They using concrete or timber sleepers? Timber or steel uprights? Any drainage behind sleeper? 3 5917 Ask the council if there is a chance of getting build over easement exemption. Sometimes easements are unused and 24cm is not all that much. Good luck. And yes any builder… 2 13873 |