Cooker Hob Extracting Ducting

[alan8376]

I have moved into a house with a recirculting kitchen hob extractor.

I intend to duct this to the outside via the loft to soffit grill. I am unsure if the plastic flexi ducting hose is really safe incase of a pan hire, where the flames maybe suct up into the loft and melt the flimsy ducting with the subsequent consequences of a BIG fire!

I am intending to purchase aluminium ducting. My question is; Is plastic hose really safe for this purpose??

Thanks

 

[foxhole]

Totally unsuitable, the heat would also eventually perish the plastic hose.
Why the loft? kitchen on upper floor?

 

[kevplumb]

Totally unsuitable, the heat would also eventually perish the plastic hose.
Why the loft? kitchen on upper floor?

bungalow

 

[uzziel49]

Actually this is similar to a situation I'll shortly be facing. Having a kitchen refit and as part of that we're moving the position of the gas hob and hood. Currently the hood is fixed on an outside wall so venting is straightforward. However, the new position is on an interior wall. My idea is to vent the hood into the ceiling (there's a loft space above the kitchen underneath a pitched roof) and out through the soffit. It's about a metre and a half, no more than that, from the point where the hose from the hood enters the celiing to the soffit.

Any thoughts on what material should be used to carry the vented air through the loftspace to the soffit?

Or alternatively, could we vent it straight up through the pitched roof through some kind of cowling or similar?

 

[foxhole]

Easier thru soffit, use either foil hose or rigid plastic ducting.

 

[alan8376]

Hi, I forgot to mention the property is a bungalow.

I can't run the ducting along the cupboard tops because the gas boiler has a vertical flue which blocks the run. Had the boiler not been there I would not fancy putting the outlet thru the lintel which is there.

I think the extractor unit has a 125mm outlet. I have only seen 100mm flexipipe upto now.

Thanks

 

[alan8376]

Thanks guys,

I have tracked down the necessary pipe + adaptor at Wicks online.

Regards
Alan