On 15/09/2018 20:17, Tim Lamb wrote:
In message , John
Rumm writes
On 15/09/2018 09:45, Tim Lamb wrote:
With the recent fuss about utility fires I was contemplating using
100mmÂ* aluminium flexible duct rather than the usual plastic.
Â*Lower air flow resistance, less likelihood of trapped fibres/fire
riskÂ* but... what about condensation issues?

You may get condensation in the duct - but that would be true for ali
or plastic. Having it routed so that it can drain will help.

Ha! Ha! First came the electrician closely followed by the boiler
installer. NextÂ* I put in the waste for the washing m/c. Then the water
softener man demonstrated how to do a 90 deg. bend using only 3
fittings. When I came to couple up the h/c for the shower, utility sink
and washbasin there was hardly any wall left available.

Routing the drier vent is going to be tortuous.

Have you considered using a condensing TD?

I must put up a photo and you can all have a laugh. Plumbers don't seem
to have much concern that PVC insulation is only good up to 70 deg.C

You can get some twin wall duct that is more resistant to condensation
- although that tends to be a combination of ali foil and plastic.

Not possible to arrange a fall with our tumble drier. Comes off the bottom.

Well you can use:

https://www.tlc-direct.co.uk/Products/MRLAD4.html

and if condensation is really a problem, then:

https://www.tlc-direct.co.uk/Products/BGCT.html

--
Cheers,

John.

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