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O

Octopus

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

Charlie_

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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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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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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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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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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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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
 

Charlie_

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Would also play havoc with anybody crawling through the loft with all those bare terminals..
Lovely snug environment for the mice though
 
These were a really bad idea, but the same tech is found in electric blankets, and heating mats for seed germination and home brewing, all of which I've used in the past. They'd probably still be good as heating mats: have you thought about selling them on eBay or Gumtree for greenhouses?
 

mattg4321

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I stayed in a ski chalet in France earlier this year that had ceiling heating installed on the top floor. Vaulted ceiling too.

What an absolutely idiotic idea! What possible benefit would it have had over a very similar underfloor heating system!?
 

Charlie_

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I don’t think selling them would be worth my while as I would have to strip it all out from the loft.. Shame though as it seems a waste just sat there.
 

Charlie_

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I stayed in a ski chalet in France earlier this year that had ceiling heating installed on the top floor. Vaulted ceiling too.

What an absolutely idiotic idea! What possible benefit would it have had over a very similar underfloor heating system!?
The only benefit I could see there is keeping snow off the roof.
Unless there was a means of circulating the warm air.
UFH would seem to be the obvious choice..
 
O

Octopus

My first house had ceiling heating .... in cold spells, you never walked around in bare feet!
 

mattg4321

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The only benefit I could see there is keeping snow off the roof.
Unless there was a means of circulating the warm air.
UFH would seem to be the obvious choice..
That definitely wasn't the intention. The roof still had about 2 feet of snow on it, so was obviously very well insulated! I didn't see any means of circulating air!
 

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