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Old 07-27-2013, 07:19 PM
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Default Built a Brickwood Oven, Now what?

Ok.
So I built a brickwood oven. Just got it finished, then I came to the forum and found that there are many here who are not fans of the Brickwood and with good reason. But I am a poorish pastor whose already got my spending money for the year tied up in the thing, so building something else isn't going to happen.
I've noticed that many of the complaints from earlier threads have been addressed. I used insulation below the oven floor, I used only one level of firebrick for the ceiling and covered that with two layers of ceramic fiber blanket and stucco.
My question is what would you do in my situation to make it the best it's going to be. I'm not interested in people telling me to tear it down and start over, but tips on how to close off the front, adjust the chimney, etc.
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Old 07-27-2013, 07:54 PM
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Default Re: Built a Brickwood Oven, Now what?

Brother Ryan,
The first thing that comes to mind is an insulated damper like Brickie installed on his build. Or maybe, some type of insulated cap that could be just placed over the chimney to keep the heat from form escaping. For the entrance I am, I am trying to get an idea of the dimensions of your oven. Did you use 4.5" X 9 " fire brick? Or you could just post the inside dimensions of your oven.

You have the insulation underneath and above, so there is no reason that you can't make this oven perform very well .
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Last edited by Gulf; 07-27-2013 at 07:59 PM.
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Old 07-27-2013, 08:08 PM
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Default Re: Built a Brickwood Oven, Now what?

The interior is 32" x 22". I did use standard size firebrick.
I was contemplating trying to make an insulated double door. (A door that covers the whole thing with a door inside of it that opens 60% of the front.) but I don't know if I'll be able to swing it.
I'll look into the insulated damper thing.
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Old 07-27-2013, 08:23 PM
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Default Re: Built a Brickwood Oven, Now what?

I would think that it would be pretty straight forward to fabricate a stepped (insulated) plug for the vent and do the same for the entry. I assume you are thinking of using the heat for baking.
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Old 07-27-2013, 09:28 PM
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Default Re: Built a Brickwood Oven, Now what?

Close the vent off and make an entry arch 63% and you will be OK.
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Old 07-28-2013, 12:16 AM
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Default Re: Built a Brickwood Oven, Now what?

You have plenty of room out the front of the oven to build an entry arch at the golden mean of 63%, that may help keep the thing hot, but I doubt it.

The perimeter of the hearth bricks are sitting directly on that HUGE concrete slab and will suck every last kilojoule of heat right out of the sucker.

You know you want to.......so...........pull it down and do it properly.

Unfortunately that same bad design has made its way over here too.

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Last edited by brickie in oz; 07-28-2013 at 12:22 AM.
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Old 07-28-2013, 07:47 AM
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Default Re: Built a Brickwood Oven, Now what?

Here are four ideas.

1- Add two more courses to the top of your chimney, the first course would have the bricks cut to accept an insulated plug. You may need to fabtocare a small lintel support at the front from a piece of steel angle. This could be used in conjunction with the other ideas.

2- Create an insulated plug door with a panel that extends over the flue.

3- build another arch just inside your flue that creates a reveal and lowers the entry to 63% and build a door with a flange that seats on the reveal. This would provide the best fire and heat retention but would reduce the oven floor space.

4- tear off the current chimney, Plug the current flue, build a new flue arch outside the current oven with 63% height and reveal, and a new chimney. This would also require the building of a door.
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Last edited by mrchipster; 07-28-2013 at 07:54 AM.
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Old 07-28-2013, 01:23 PM
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Default Re: Built a Brickwood Oven, Now what?

Brickie,
I could be wrong, but I don't think my hearth bricks go right to the concrete. There are two different types of bricks there, and underneath the hearth bricks there is insulation. The mortared bricks are just a border on top of the concrete.
(You aren't kidding about it being huge though. It took six guys to get it mounted in place and I think we all got hernias.)


Mr Chipster,
Thank you so much for the ideas. What I think I'm going to do is extend the chimney like #1.
I really liked the idea of adding a door inside of the flue, but I looked at my oven and that would make it absolutely tiny in there. So that's not happening.
I'm probably going to add a 63% arch either right inside or right outside of the oven and then build a door with a large flange and add a removable insulated plug insert to the chimney.
Thanks again.
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Old 07-28-2013, 04:21 PM
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Default Re: Built a Brickwood Oven, Now what?

I would extend the front of the oven as Chip suggests in #4. If you go with # 1 and plug the chimney to bake, I think the oven is going to make a mess smoking out the door when you first put the oven out.
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Old 07-28-2013, 04:43 PM
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Default Re: Built a Brickwood Oven, Now what?

Hi Pastor,

What is the hearth insulation, and what thickness is it? If its the separation between the slab and the bricks, that not enough.
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