sunken ceiling lights and fibreglass problem/question

navig8r

roger56 wrote:

The very last comment for these in instructions reads:
Do not install this product on new plaster and Artex ceilings.
(I've just lost the plot... )

This could be because it would dry the plaster/artex out to quickly causing cracking.

Dave

ozskin

megamans do not give spot light like you would expect them too, low energy yes but not the strenght or quality of light to call it a spot imho

pejoco0_2

I'm now worried reading these replies. I've got 10 x GU10 flush mounted lamps to fit into my kitchen ceiling there's no insulation and the house was built in the late 50's so the joists should be deepenough to help heat dispersal. But artex was applied to the ceiling some 22yrs ago will I have problems when I come to fit them. I bought them hoping that I'd be able to fit a dimmer switch is that not an option?

navig8r

pejoco0 wrote:

I'm now worried reading these replies. I've got 10 x GU10 flush mounted lamps to fit into my kitchen ceiling there's no insulation and the house was built in the late 50's so the joists should be deepenough to help heat dispersal. But artex was applied to the ceiling some 22yrs ago will I have problems when I come to fit them. I bought them hoping that I'd be able to fit a dimmer switch is that not an option?

Not with the artex shrinking but the dust from cutting the holes as old artex did contain some asbestos ..10 x GU10 :eek: Thats a lot of lecky to use and you will need a Whopping rated dimmer switch to control them as this type of light needs more grunt in the switch than standard bulbs eg switch rated at200 watts would control 4 x 50w normal bulbs but maybe only a couple or three GU10's

Dave

happyhero

pejoco0 wrote:

I'm now worried reading these replies. I've got 10 x GU10 flush mounted lamps to fit into my kitchen ceiling there's no insulation and the house was built in the late 50's so the joists should be deepenough to help heat dispersal. But artex was applied to the ceiling some 22yrs ago will I have problems when I come to fit them. I bought them hoping that I'd be able to fit a dimmer switch is that not an option?

Hi pejoco0, I dont think you need to worry, I have spoken with some electrian friends and they said its not really a problem, you just need to be aware of the possible problems and be sensible, ie they advised that it's asking for trouble eventually if you let the lamps either touch or come extremely close to joists etc. They said an inch away from joists will mean the joist may get warm but unlikely it will get hot enough at that distance to do any real harm. And with fiberglass insulation its best not touching against the fitting as it will keep cooking it, which will degrade it, they were not sure if it could actually ever catch light this way but wouldn't want to put it to the test.

As for old artex they hadn't had any problems dealing with it before, even when they fitted in newly decorated areas. Dimmer switches are no problem as long as you get the correct one for that type of lamp.

See

http://www.tlc-direct.co.uk/Main_Index/Wiring_Accessories_Menu_Index/Wiring_Accessories~Dimmers_All/Wiring_Accessories~Dimmers_5_Chrome/index.html

and take not of this

http://www.tlc-direct.co.uk/Technical/DataSheets/Systems/DimmerGuide.htm

hope that helps you.

christineperseus

We had to fit another lighting circuit after we had 10 spots in our dining room then another 10 in the kitchen.
We have one of those 'Electrisave' gadgets and my kitchen lights cost 35p an hour to have on!

navig8r

I don't think the issue is the insluation catching fire as I have placed fibreglass insulation in the flame of a gas ring and it refuses to burn..I think the danger lies is the fact that the insulation stops the heat escaping from the light fitting allowing the wireing to get too hot.

Dave

happyhero

christineperseus wrote:

We had to fit another lighting circuit after we had 10 spots in our dining room then another 10 in the kitchen.
We have one of those 'Electrisave' gadgets and my kitchen lights cost 35p an hour to have on!

Hi christineperseus, I'm really not trying to wind you up here but, I think you have your figures muddled, because 35p an hour, I would have thought was quite expensive. Assuming your figures are correct then if you left the lights on for say 4 hours a day which is quite possible at this time of year (or more even) especially if someone likes cooking. Also people do sometimes tend to congregate in the kitchen, etc etc, well that would be 35p x 4 =£1.40/per day then you have about 30 days a month so £1.40 x 30 =£42 and thats just for the lights in that one room. Imagine adding the other rooms and then bearing in mind that lighting is one of the cheapest electrical items to run, adding ovens and fridges, etc. Adding the other room you mention takes it up to £84 without adding anything else. I would guess something is wrong in the calculation otherwise you would have an electric bill in the 100's every month. My bill is £72 per month for a 4 bed house, for everything, and I moan about that.

As I say not trying to wind you up but this site is about saving money and it doesn't look like you are. I think it maybe that you need to reprogram your electrisave gadget. I may be wrong of course.

navig8r

happyhero wrote:

Hi christineperseus, I'm really not trying to wind you up here but, I think you have your figures muddled, because 35p an hour, I would have thought was quite expensive. Assuming your figures are correct then if you left the lights on for say 4 hours a day which is quite possible at this time of year (or more even) especially if someone likes cooking. Also people do sometimes tend to congregate in the kitchen, etc etc, well that would be 35p x 4 =£1.40/per day then you have about 30 days a month so £1.40 x 30 =£42 and thats just for the lights in that one room. Imagine adding the other rooms and then bearing in mind that lighting is one of the cheapest electrical items to run, adding ovens and fridges, etc. Adding the other room you mention takes it up to £84 without adding anything else. I would guess something is wrong in the calculation otherwise you would have an electric bill in the 100's every month. My bill is £72 per month for a 4 bed house, for everything, and I moan about that.

As I say not trying to wind you up but this site is about saving money and it doesn't look like you are. I think it maybe that you need to reprogram your electrisave gadget. I may be wrong of course.

Yes! 10 x GU10's would cost around 5 pence/hour but happyhero, I am curious to know why you thanked the poster and then took his post apart ..does not this make a nonsense of the "THANKS" system.

Edit: or perhaps you did what I just did and hit the Thanks instead of Quote and could not see how to remove it.

Dave

happyhero

I always feel inclined to thank anyone who has made the effort to read my post and contribute to it, so unless someone is not very nice I thank them for their effort. I am a bit intermittant with this though because I do see your point and sometimes only thank people who have really contributed something really helpfull.

I'm too soft and sometimes feel guilty if I dont thank someone, I imagine some thinking "well I gave him some advice and he cant even be bothered to thank me".

Sorry.