Stoves

Dry Rot · Nov 12, 2018

tomlad said:
So the airs not going over the trees, instead pushing down ur flu ,??

How many trees , chop them down ?

No, it IS pushing down the flue! Yes, I don't understand the aerodynamics of it either, but I did come across a description of exactly that.

Can't cut the trees. It's not an option.

Might have to buy that expensive German cowl. They reckon they cure everything! (But at £300, they better had!).

bobk · Nov 12, 2018

Dry Rot said:
No, it IS pushing down the flue! Yes, I don't understand the aerodynamics of it either, but I did come across a description of exactly that.

Can't cut the trees. It's not an option.

Might have to buy that expensive German cowl. They reckon they cure everything! (But at £300, they better had!).

NO ... FFS , it's not pushing down it's because there's f**k all pushing up .

tomlad · Nov 12, 2018

Ive took advice from stoves online b4 , very helpful
Id give them a call
Flu fans on there vast website
I think its a call leave msg they call back jobbie.

https://www.stovesonline.co.uk/wood_burning_stoves/Powerflue-Chimney-fans.html

anzani · Nov 12, 2018

bobk said:
and you can get a certificate off t'internet .

Where?

anzani · Nov 12, 2018

bobk said:
Ours is like this , not everyones cup of tea but it's very effective

In my experience this installation would NOT get Hetas approval. Who knows why?

Dry Rot · Nov 12, 2018

bobk said:
NO ... FFS , it's not pushing down it's because there's fudge all pushing up .

As I think I've explained, with an east wind (25mph the other night) and two windows to the room with the stove wide open, the door open, and the hall window open, it still belches out smoke! So, I would say that's plenty of ventilation at the stove end!

Haven't studied it in detail yet, but the best explanation I have come scross so far, is this one: https://www.woodheat.org/wind-chimney.html

bobk · Nov 12, 2018

anzani said:
In my experience this installation would NOT get Hetas approval. Who knows why?

You are correct , ours is twin wall through the ceiling and roof , but that's common sense tbh .

bobk · Nov 12, 2018

Dry Rot said:
As I think I've explained, with an east wind (25mph the other night) and two windows to the room with the stove wide open, the door open, and the hall window open, it still belches out smoke! So, I would say that's plenty of ventilation at the stove end!

Haven't studied it in detail yet, but the best explanation I have come scross so far, is this one: https://www.woodheat.org/wind-chimney.html

I'll bet it's cast iron .

anzani · Nov 12, 2018

Dry Rot said:
As I think I've explained, with an east wind (25mph the other night) and two windows to the room with the stove wide open, the door open, and the hall window open, it still belches out smoke! So, I would say that's plenty of ventilation at the stove end!

Haven't studied it in detail yet, but the best explanation I have come scross so far, is this one: https://www.woodheat.org/wind-chimney.html

See:
http://www.poujoulat.co.uk/produit/101/17/1/mechanical-chimney-draught/aspirotor.html

anzani · Nov 12, 2018

bobk said:
You are correct , ours is twin wall through the ceiling and roof , but that's common sense tbh .

You are correct, but common sense is hard to find, and stove brochures are not known for it!

Dry Rot · Nov 12, 2018

anzani said:
See:
http://www.poujoulat.co.uk/produit/101/17/1/mechanical-chimney-draught/aspirotor.html

Yes, I've considered the rotating/moving/motorised solutions but don't like moving gadgets because of tar/rust/wear stopping them working. I am in he Highlnds of Scotland and a 25mph wind is just a gentle breeze up here!

I'm going to try one of those vented caps as recommended by my sweep as I see they are guaranteed and I can get my money back if they don't work!

But thanks for your wisdom, it is appreciated.

(I'll probably end up blocking the other adviser who can't comment without swearing and being rude. There are plenty of dictionaries out there if people can't find the right words!).

Pond digger · Nov 12, 2018

anzani said:
In my experience this installation would NOT get Hetas approval. Who knows why?

No air vents nearby?

bobk · Nov 12, 2018

Dry Rot said:
Yes, I've considered the rotating/moving/motorised solutions but don't like moving gadgets because of tar/rust/wear stopping them working. I am in he Highlnds of Scotland and a 25mph wind is just a gentle breeze up here!

I'm going to try one of those vented caps as recommended by my sweep as I see they are guaranteed and I can get my money back if they don't work!
But thanks for your wisdom, it is appreciated.

(I'll probably end up blocking the other adviser who can't comment without swearing and being rude. There are plenty of dictionaries out there if people can't find the right words!).

Is that moi ? if you would listen life would more simple , I don't have to help you .

anzani · Nov 12, 2018

Pond digger said:
No air vents nearby?

Its the depiction of single skin stove pipe entering the ceiling void that is incorrect. Current regulations in England require twinwall pipe at least 450mm below the ceiling. Also the plasterboard should be cut back 50mm from the twinwall fully around the diameter, a fire stop plate set installed to ventilate the light carrying void above. Attention to be paid to correct clearance to combustables along the entire flue route .
Care would be necessary to ascertain whether the stove is sufficiently far from the shelving unit of combustable construction to the left, in accordance with the manufacturers instruction.
Unless the stove is rated above 5Kw, or the property is an airtight construction, no combustion air vent would normally be required.
E&oe

bobk · Nov 12, 2018

anzani said:
Its the depiction of single skin stove pipe entering the ceiling void that is incorrect. Current regulations in England require twinwall pipe at least 450mm below the ceiling. Also the plasterboard should be cut back 50mm from the twinwall fully around the diameter, a fire stop plate set installed to ventilate the light carrying void above. Attention to be paid to correct clearance to combustables along the entire flue route .
Care would be necessary to ascertain whether the stove is sufficiently far from the shelving unit of combustable construction to the left, in accordance with the manufacturers instruction.
Unless the stove is rated above 5Kw, or the property is an airtight construction, no combustion air vent would normally be required.
E&oe

Nice copy and paste .

anzani · Nov 12, 2018

bobk said:
Nice copy and paste .

I will let you have some time to substantiate the implied slur, but not very long.

bobk · Nov 12, 2018

anzani said:
I will let you have some time to substantiate the implied slur, but not very long.

Had to be c and p , cos it didn't make sense . your turn

anzani · Nov 12, 2018

bobk said:
Had to be c and p , cos it didn't make sense . your turn

Maybe you can find a 'google translate' that will rewrite into words of just two syllables?

renewablejohn · Nov 12, 2018

As I said previously a H pipe normally works set 90 degrees to the prevailing wind. The back pressure you get pushing down the chimney is the same on each arm of the H but with the bottom of the H being open it sucks your smoke up the chimney. Simple but effective if you can find one.If you cant find new than architect salvage may still have some.

http://www.hadley-reclaimed.co.uk/104-h-chimney-pots

Dry Rot · Nov 13, 2018

renewablejohn said:
As I said previously a H pipe normally works set 90 degrees to the prevailing wind. The back pressure you get pushing down the chimney is the same on each arm of the H but with the bottom of the H being open it sucks your smoke up the chimney. Simple but effective if you can find one.If you cant find new than architect salvage may still have some.

http://www.hadley-reclaimed.co.uk/104-h-chimney-pots

Plenty of H shaped cowls about.

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