John's 42inch Aussie WFO

[BackyardPermaculture]

Re: John's 42inch Aussie WFO

Not a pretty sight at all. Why did it fall out? Did you not secure it in place?

Not too surprising really; the flue is just resting on the clay dome while I run curing fires. It will be firmly attached once the insulation goes on and the enclosure is built.

Cheers,
Mick

[John K]

Re: John's 42inch Aussie WFO

I'm in Brisbane - my stainless flue has scratches and dings now. I lit a fire the other night, the flue fell back off the oven, then off the upstairs deck down onto concrete below and into the garden. Really, really loud noise!

Ahhhh. I guess that is something you were not expecting. Would have freaked your neighbor's out though

Not a pretty sight at all. Why did it fall out? Did you not secure it in place?

I say that the extra dings give the oven extra character!

cheers

[BackyardPermaculture]

Re: John's 42inch Aussie WFO

I'm in Brisbane - my stainless flue has scratches and dings now. I lit a fire the other night, the flue fell back off the oven, then off the upstairs deck down onto concrete below and into the garden. Really, really loud noise!

[John K]

Re: John's 42inch Aussie WFO

Bummer! I myself wouldn't be able to wait. I would cut each splayed brick in half and use a standard brick behind the fancy brick so you could only see it if you looked up from underneath the arch. I don't do well with waiting.
Looks great so far,
Dave

Thanks Dave.

I'm also the same with waiting but as I have been a little busy of late a few weeks would not be so bad.

I actually received a call on Sat morning that my bricks had arrived early so I went and picked up 10 more but will only need 6 (Just in case!!).

Picked up and extra bag of High temp mortar and am ready to go.

I also Picked up an 8inch Stainless flue with a cap for only AUD $80. The flue has a scratch on it so was reduced. I can live with a litle scratch for the price and you wont even be able to see it where it is.

cheers

[DaveW]

Re: John's 42inch Aussie WFO

Bummer! I myself wouldn't be able to wait. I would cut each splayed brick in half and use a standard brick behind the fancy brick so you could only see it if you looked up from underneath the arch. I don't do well with waiting.
Looks great so far,
Dave

[John K]

Re: John's 42inch Aussie WFO

AHHHH

I am 6 Splayed bricks short for the Arch. I was originaly going to only use the splayed bricks for the arch itself and not for the arch walls and am now short!

I contacted the brick supplier for 6 and there is a wait of 4 weeks!! None in stock she tells me. Not happy!!

These brick a very rare as there is only 1 place in Australia that can make this solid pressed brick (hand pressed) and cost a wopping $3.80 AUD each.

I guess I have to play the waiting game now.

[John K]

Re: John's 42inch Aussie WFO

Spent about an hour today getting ready for the outside Arch and managed to cut and set the first of the arch bricks

[John K]

Re: John's 42inch Aussie WFO

Hey John,,,

If its not too late maybe you can get your hands on one of these,, Earthcore Industries, Inc. - Copper Pots
Dont know if they are available by you, But Might be worth a shot''

Very nice Mark. I bet those things are worth a fortune with the cost of copper these days!

I had a quick search in OZ but nothing came up. Copper looks great and when it begins to weather gives a great rustic look.

I decided to go with an 8 inch Stainless flue which I can pick up for around AUD $65.00 so about US $60.00 + the cap yet to be purchased.

I am finding it harder and harder to find some spare time over the Weekends to work on the oven so I think I will go with the easier method.

cheers

[ThisOldGarageNJ]

Re: John's 42inch Aussie WFO

Hey John,,,

If its not too late maybe you can get your hands on one of these,, Earthcore Industries, Inc. - Copper Pots
Dont know if they are available by you, But Might be worth a shot''

[John K]

Re: John's 42inch Aussie WFO

Thank you all for comments. I really appreciate the info + link to the North Yorkshire UK build.

I was really hoping that I could use this but as per your comments and others experiences namely the North Yorkshire UK build it's back to the drawing board.

I did think about inserting a double steel flue within the claypot Eric but I would not have sufficient space within the pot to cater for this as you would need a 10inch flue plus the AUD $170 + $60 for the Gal flue, would have been a little pricey.

Mark that was a great link to the frequently asked questions link and confirmed what was said to me.

Mitchamus they are great pieces though but the irregularities in clay thickens definitely do not help!! They look fantastic though but never mind!!

Just wondering if I decide not to use a round Flue section, would I be reducing the drawing of smoke if I bricked up a rectangular brick flue with no internal lining?

[eprante]

Re: John's 42inch Aussie WFO

John,
That is a cool looking chimney. How big is the inside diameter, maybe you could run a double wall galvanized chimney pipe inside it. It would be an extra expense but you would have one of the nicest looking chimneys on the site.
Eric

[Mitchamus]

Re: John's 42inch Aussie WFO

hey John,
...My only concern is there was a guy from england I think.. A few months ago had something similar and it shattered to pieces from the heat..

I remember reading that one as well. I'll see if I can find it.

here it is:

Oven

(beautiful oven)

Now after 2 exploding pots I think I may have got a fix for the problem. In the original design the flue liner stopped at the base of the pot, allowing supoer hot fumes to fill the pot as they escaped. I have extended the flue liner so that it now stops at the top of the pot (have to trim it back to fit neatly). I think I still need to add some vermiculite cement inbetween the gap of the liner and interior of the chimney as I have still managed to crack the last pot slightly with the heat. At least they don't 'explode' any more.

[Tscarborough]

Re: John's 42inch Aussie WFO

The problem with most pots is that they have unequal thickness's of material; all those decorations. That leads to differential thermal expansion, and thus cracking. They are nice units though.

[ThisOldGarageNJ]

Re: John's 42inch Aussie WFO

Hey John,

maybe you can do a fourm search for a chimney cap

I stand corrected.... Now that you have the right information you can get the right answer.. My point was I dont believe the cap is made to use that close to the heat...
Its a shame you cant use something that nice without it being destroyed..
Cheers
Mark

some additional info:
Can chimney pots be installed on outdoor fireplaces?(brick oven ?)
Yes, but you should be aware that clay chimney pots may be susceptible to thermal shock when installed on fireplaces or appliances with a short chimney stack of less than four (4) standard length flue liners due to the close proximity to the heat source.

Clay Chimney Pots | Frequently Asked Questions Asked About Superior Clay Chimney Pots

[Tscarborough]

Re: John's 42inch Aussie WFO

That is a chimney cap, not a flue pipe. A lot of money, too. I would be afraid to use it that close to the heat.