Aardvark
Non-gamer
Living in soggy 22 and still wondering what's going on.
Posts: 2,172
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Post by Aardvark on Apr 11, 2023 13:29:31 GMT 1
Best not to assume anythig and start with the wall construction and heater type. Even with plasterboard you cannot assume it is BA13 because doublage isolé uses 10mm plasterboard which gives a very weak fixing with those chevilles which are excellent in BA13, I use a high glass reinforced Nylon equivalent. |
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Post by mangetout on Apr 11, 2023 13:43:01 GMT 1
Once again, thank you for the time you all took in trying to help. For whatever reason, my sister is unable to answer the logical questions you all pose about type of wall etc. So I've suggested to her that she uses the product that exile put forward. I think that's what my late husband would have done in the circumstances. Other than that I've suggested she contact the electrician who installed them  |
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Post by pcpa on Apr 11, 2023 20:48:58 GMT 1
Best not to assume anythig and start with the wall construction and heater type. Even with plasterboard you cannot assume it is BA13 because doublage isolé uses 10mm plasterboard which gives a very weak fixing with those chevilles which are excellent in BA13, I use a high glass reinforced Nylon equivalent. Even in BA13 the fixings can be wrecked if you undo the screw even 1/4 of a turn as the tapered "Mole" (think thunderbirds) outer will unscrew, once reversed even a fraction of a turn it loses its bite and cannot be retightened.
For that reason I dont use the number 8 screws that they come with but number 6s instead which can be successfully removed.
Number 8 screws are approx 4mm metric size and number 6 are " or 3.5mm I cant recall exactly.
Fixing anything substantial onto BA10 is very risky, better to go through to the wall behind if you can.
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mysty
Member
Posts: 1,298
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Post by mysty on Apr 11, 2023 22:17:57 GMT 1
Not that this is any help to your sister but I always fit wood behind plasterboard if a radiator is going on the wall, it never fails.
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Post by robertarthur on Apr 11, 2023 23:35:28 GMT 1
If we are dealing with a traditional French electric heater you'll see this type of installation. And probably 4 small chevilles métalliques à expansion (7 and 8 ). Available in different sizes and diameters. These plugs, provided they are properly attached to the plasterboard, also allow relatively heavy loads. Going up one size in plug diameter and you should be able to fix the hole. |
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Le-Dolly
Member
La Souterraine (23) depuis '05.
Posts: 570
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Post by Le-Dolly on Apr 12, 2023 8:42:03 GMT 1
If we are dealing with a traditional French electric heater you'll see this type of installation. And probably 4 small chevilles métalliques à expansion (7 and 8 ). Available in different sizes and diameters. These plugs, provided they are properly attached to the plasterboard, also allow relatively heavy loads. Going up one size in plug diameter and you should be able to fix the hole. What I said on page one.  |
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Aardvark
Non-gamer
Living in soggy 22 and still wondering what's going on.
Posts: 2,172
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Post by Aardvark on Apr 12, 2023 9:30:42 GMT 1
Not that this is any help to your sister but I always fit wood behind plasterboard if a radiator is going on the wall, it never fails. Very good plan if its a new installation but not possible with an existing placo lining. With all the placo I have put up I tried to imagine what might need to be hung on it later. My method is to attach an offcut of plywood onto the back of the placo that could spread the load of any fasteners used later. Works well enough for electric heaters and shelves, etc. |
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mysty
Member
Posts: 1,298
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Post by mysty on Apr 12, 2023 11:25:48 GMT 1
Not that this is any help to your sister but I always fit wood behind plasterboard if a radiator is going on the wall, it never fails. Very good plan if its a new installation but not possible with an existing placo lining. With all the placo I have put up I tried to imagine what might need to be hung on it later. My method is to attach an offcut of plywood onto the back of the placo that could spread the load of any fasteners used later. Works well enough for electric heaters and shelves, etc. You can still do it after it's in place. Cut out a hole put a bit of wood in place with a couple of plasterboard screws then cover it all with MAP leave it a couple of hours and it's as hard as rock. Simple to screw into. |
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