Horizontal Flue - Why?

sevenhills

On our regular bus journey we had some fun spotting a flue, that looked like a telescope.
When we finally worked out it wasnt a telescope, the question is, why the horizontal flue?
All other flues and chimnies point towards the sky, why is this flue horizontal?

Ruski

Give us a clue!

Can you streetview or Google earth it??

martinsurrey

sevenhills wrote: »

On our regular bus journey we had some fun spotting a flue, that looked like a telescope.
When we finally worked out it wasnt a telescope, the question is, why the horizontal flue?
All other flues and chimnies point towards the sky, why is this flue horizontal?

more details please, but it could be a ventilation flue, not a heat flue.

Most flues go up because they take work by using the draw of warm air wanting to rise, but if you are venting a bathroom, or a cooker hood with a fan, the up bit isn't important.

sevenhills

Ruski wrote: »

Give us a clue!

Can you streetview or Google earth it??

https://www.google.co.uk/maps/@53.8397623,-1.4637907,3a,75y,54.79h,101.15t/data=!3m6!1e1!3m4!1sh1NCq5zvIftVGp7ps-eQiA!2e0!7i13312!8i6656

I cannot see very much on streetview, it looks like an older photo of a vent pipe.
Number 31

sevenhills

It looks like this one.

http://www.directheatingsupplies.co.uk/vokera-horizontal-telescopic-flue-29450121?utm_source=criteo&utm_medium=display&utm_campaign=lowerfunnel

Alex1983

Some manufacturers allow it, Worcester definitely do. Don’t know why you’d do it other then the horizontal flue is cheaper then a vertical flue.

Ectophile

If it's a concentric flue for a gas boiler, then I would think that a horizontal section would reduce the chance of the boiler filling up with rainwater. A lot of boilers suck clean air through the flue as well as venting out the burnt gases.

sevenhills

martinsurrey wrote: »

more details please, but it could be a ventilation flue, not a heat flue.

The flue is on the roof, so it looks odd, it would not look out of place on a wall.

northwalesd

Could it possibly be a bathroom or en-suite extractor vent? That's what it looks like to me. I think it's unlikely to be vent for a heating appliance.

Alex1983

It probably is a boiler flue, it’s fairly common, horizontal flue out of a pitched roof, I’ve never done it myself and don’t see why you would other then cost.