JohnnyD
Member
Mayenne (53) When Covid allows..........Which isn't very often these days........
Posts: 1,858
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VMC
Oct 30, 2022 14:11:51 GMT 1
Post by JohnnyD on Oct 30, 2022 14:11:51 GMT 1
Getting into and walking in the loft is going to be tricky, but I have taken a photo of the VMC, I will power up this afternoon......
It was working OK when we moved it, but has been turned off for a year or so
How does it look? Does it look safe?
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VMC
Oct 30, 2022 14:43:26 GMT 1
Post by robertarthur on Oct 30, 2022 14:43:26 GMT 1
The "extraction d'air" goes into the loft?
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JohnnyD
Member
Mayenne (53) When Covid allows..........Which isn't very often these days........
Posts: 1,858
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VMC
Oct 30, 2022 14:52:05 GMT 1
Post by JohnnyD on Oct 30, 2022 14:52:05 GMT 1
It would appear to at the moment Robert........It powers up OK and sounds like it used to though
Edit
I have a feeling its fallen off something, on the outside of the roof in that area is a small round vent.......
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JohnnyD
Member
Mayenne (53) When Covid allows..........Which isn't very often these days........
Posts: 1,858
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VMC
Oct 30, 2022 15:41:41 GMT 1
Post by JohnnyD on Oct 30, 2022 15:41:41 GMT 1
I don't know how long it will stay on, it just seems to be a push fit with no tie on or clips, I didn't want to push too hard in case I pushed the vent cowl off and leave a hole in the roof a day before we leave LoL.......
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VMC
Oct 30, 2022 16:34:54 GMT 1
Post by pcpa on Oct 30, 2022 16:34:54 GMT 1
Why have they used gaine isolée on a VMC simple flux?
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Le-Dolly
Member
La Souterraine (23) depuis '05.
Posts: 482
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VMC
Oct 30, 2022 16:47:45 GMT 1
Post by Le-Dolly on Oct 30, 2022 16:47:45 GMT 1
Why have they used gaine isolée on a VMC simple flux? Because they could! Perhaps to cut down on possible condensation. Gaine isolée is what I have used on all the VMC's, (10), in the attics here. |
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JohnnyD
Member
Mayenne (53) When Covid allows..........Which isn't very often these days........
Posts: 1,858
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VMC
Oct 30, 2022 17:00:04 GMT 1
Post by JohnnyD on Oct 30, 2022 17:00:04 GMT 1
What is gaine isolee and what do you think they should have used instead pcpa?
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JohnnyD
Member
Mayenne (53) When Covid allows..........Which isn't very often these days........
Posts: 1,858
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VMC
Oct 30, 2022 17:05:47 GMT 1
Post by JohnnyD on Oct 30, 2022 17:05:47 GMT 1
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VMC
Oct 30, 2022 18:11:05 GMT 1
Post by robertarthur on Oct 30, 2022 18:11:05 GMT 1
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VMC
Oct 30, 2022 19:55:36 GMT 1
Post by pcpa on Oct 30, 2022 19:55:36 GMT 1
Why have they used gaine isolée on a VMC simple flux? Because they could! Perhaps to cut down on possible condensation. Gaine isolée is what I have used on all the VMC's, (10), in the attics here. I bet it was liberated and not paid for out of your own pocket though! |
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VMC
Oct 30, 2022 19:59:10 GMT 1
Post by pcpa on Oct 30, 2022 19:59:10 GMT 1
What is gaine isolee and what do you think they should have used instead pcpa? You have by now worked out what it is, as the VMC is not a heat recovery type (double flux) then there is no point insulating the warm air extracted from the rooms and expelled via the VMC to the outside world.
Gaine isolée costs much much more, is difficult to handle and very bulky to transport, there is no point using it on a basic simple flux system unless its free.
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JohnnyD
Member
Mayenne (53) When Covid allows..........Which isn't very often these days........
Posts: 1,858
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VMC
Oct 30, 2022 20:29:05 GMT 1
Post by JohnnyD on Oct 30, 2022 20:29:05 GMT 1
What is gaine isolee and what do you think they should have used instead pcpa? You have by now worked out what it is, as the VMC is not a heat recovery type (double flux) then there is no point insulating the warm air extracted from the rooms and expelled via the VMC to the outside world.
Gaine isolée costs much much more, is difficult to handle and very bulky to transport, there is no point using it on a basic simple flux system unless its free.
It was free, it was here when we moved in ...... |
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VMC
Oct 31, 2022 9:09:51 GMT 1
Post by Polarengineer on Oct 31, 2022 9:09:51 GMT 1
What is gaine isolee and what do you think they should have used instead pcpa? You have by now worked out what it is, as the VMC is not a heat recovery type (double flux) then there is no point insulating the warm air extracted from the rooms and expelled via the VMC to the outside world.
Gaine isolée costs much much more, is difficult to handle and very bulky to transport, there is no point using it on a basic simple flux system unless its free.
Not exactly what I would recommend. Any humid air extraction pipe will need to be insulated to avoid condensation dripping back down the pipe into the bathroom. |
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VMC
Oct 31, 2022 11:20:25 GMT 1
Post by annabellespapa on Oct 31, 2022 11:20:25 GMT 1
I don't know how long it will stay on, it just seems to be a push fit with no tie on or clips, I didn't want to push too hard in case I pushed the vent cowl off and leave a hole in the roof a day before we leave LoL.......
I was always told to suspend them, firstly if left on the floor they can make a vibration noise and secondly if they burn out there is less risk of the roof catching fire. When we close our house up, I turn the electric off to the VMC, leave the veluxes on trickle vents and leave the loft access slightly open. |
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VMC
Oct 31, 2022 11:26:46 GMT 1
Post by pcpa on Oct 31, 2022 11:26:46 GMT 1
Never had it happen with any of the 10 that I have installed and maintained, every one of them has had to come out at one time to replace the motor capacitor(s) and there has never been no sign of any condensation, if a VMC is used 24/7 on the low setting as it should be then it simply does not happen.
Even if you buy into the theory why insulate the exhaust gaine from the caisson?
It's just another way for the trades to extract money from clients who dont question or think for themselves, just like the manufacturers specifying capacitors that only last 18-24 months, I replace them with the cheapest I could find, less than €2 each and they go on for ever.
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