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Discuss Something I haven’t seen before in the Electrical Forum area at ElectriciansForums.net

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O

Octopus

Ceiling heating ........... beware where you drill holes putting up lights or adding downlights
 

Charlie_

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  • #3
It has long been decommissioned..
All controls have been removed.
What voltage did it run at?
It is made from some kind of black cloth with those copper strips along the edges.. Did the black cloth heat up?
 
O

Octopus

voltage would have been 230v .........

How old is the property?
 

Charlie_

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  • #7
Yes I think the property was built in the 80s
So all those exposed terminals are 240v?
Possibly fed through an isolating transformer?
 
D

Deleted member 9648

They were straight 230v, the black material heats up and is sandwiched between plastic sheet. Back in the day there used to be about 1" of insulation over the top. Not surprisingly the 'fad' didn't last long. Probably one of the worst ideas of all time. Similar mats are still used for vivarium heaters etc.
 

Charlie_

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  • #10
Probably a good money spinning gimmick back in the day..
Similar to say those voltage optimisers a few years ago.
 

freddo

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Esteemed
There are quite a few around this area, never seen any still in use. Certainly seems like a terrible design.
 

freddo

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Arms
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Esteemed
No idea on power ratings, 2 systems had 15A thermostats to control them, one in each room.

I would expect plasterboard to be quite thermally insulating?
 

Charlie_

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  • #14
Yes I also thought that about the plasterboard goving a poor heat transfer..
One of my theories was that it was some sort of mesh system created by a techno geek haha
 

Rpa07

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Arms
Esteemed
It would play havoc with your WiFi signal, if still used today.
 
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