30"/760mm Scotland Pompeii

[deejayoh]

Re: 30"/760mm Scotland Pompeii

Nicely done, looks great!

[mrchipster]

Re: 30"/760mm Scotland Pompeii

I can smell the pizza right now...... OH... That is my oven.:rolleyes

Oh BTW very nice work.

[jms]

Re: 30"/760mm Scotland Pompeii

Thanks

The weather today was miserable so rather than do the arch I put my halogen floodlight in the dome to start curing. Before starting this morning the surface temp of the oven was around ~10c/50f, after 12 hrs with the lamp it was a fairly consistent ~30c/86f.

[Greenman]

Re: 30"/760mm Scotland Pompeii

Nothing quite like sticking your head into the newly completed dome for that 'did I really do that' moment, multiple pics and a quick look around for someone to show!
It looks good, you have to be happy with your efforts.

[jms]

Re: 30"/760mm Scotland Pompeii

Once again I've been outwitted by arch geometry! I got about half way through cutting/building when I saw what was going to happen, but I decided that I wasn't going to waste time on something that nobody else is going to see. The arch is going to be covered and isn't going to be load-bearing, so I'm not bothered by the weirdness.

Cutting the tapers was a pain. I had about 2mm clearance between the brick and the blade cowling of the saw. I didn't like having my fingers so close to the blade so I used a clamp to push them through. The saw didn't like the full length cuts, I had to go very very slowly or else it was trying to grab the brick. After I'm completely finished I'm going to look into getting the saw overhauled before I could try to sell it on, but if it was unserviceable I wouldn't be sad about dumping it, this week it paid for itself vs what it would have cost to rent for all this time.

I'm going to leave the arch form in place for a few days and then start curing

[texman]

Re: 30"/760mm Scotland Pompeii

jm

almost there. I couldn't wait to get the saw out and be done with it for awhile. And as you said, it will be covered anyway. But really looks good if you didn't.
How big is that vent and how tall is your chimney plan?

Tex

[jms]

Re: 30"/760mm Scotland Pompeii

jm

almost there. I couldn't wait to get the saw out and be done with it for awhile. And as you said, it will be covered anyway. But really looks good if you didn't.
How big is that vent and how tall is your chimney plan?

Tex

The vent opening is about 11x3". I read about the 10% of opening area recommendation and this works out to be around 20%.

I'm thinking of having the chimney around 3' in length. It depends on what is available near me, I'm going to a local supplier tomorrow to ask.

[cobblerdave]

Re: 30"/760mm Scotland Pompeii

Gudday
Trust me most folk will be be overawed by the fact it's a wood fired oven and will except the fact that's what it's supposed to be long after your cement burnt fingers heal.
Enjoy the journey and except your results ..., they are good!
Regards dave

[Bookemdanno]

Re: 30"/760mm Scotland Pompeii

Twin walled stainless flue is pretty near perfect JMS. Most Builder or Plumbers Merch will stock it.
I wish i had a few quid, as i'd snap up that saw.

Don't forget the UKWFO, there's a for sale section on there!

[jms]

Re: 30"/760mm Scotland Pompeii

How many briquettes should I be using for curing? Should I use a certain number which I increase with each day, or do I just put in a set number and pull them out when the dome reaches the desired temp?

[jms]

Re: 30"/760mm Scotland Pompeii

I said that I wouldn't be bothered by the arch, but I was. One of the top bricks also wasn't bonded well. So I pulled the arch down and rebuilt it, substituting in some untapered bricks to make the mortar joints less excessive. I'm much more happy the result this time. I now have only one uncut firebrick left out of 144

I plugged the thermal gap with ceramic rope and then thermal-caulk'ed over it on the inside. The tube says it is black, but it was obviously blue. Maybe it sets black

Lastly I put a tray of briquettes in the oven.

[GIANLUCA]

Re: 30"/760mm Scotland Pompeii

Looks great.

[Greenman]

Re: 30"/760mm Scotland Pompeii

Looks good. Your prudent action of re-doing the arch is painful at the time but will stand you in good stead. Increases the satisfaction with the job as well, IMHO.

I reckon that the caulk will go black, after some fires probably.

[Bookemdanno]

Re: 30"/760mm Scotland Pompeii

It'll all end up pretty sooty in there with all the use that fab oven is going to get anyway!

Good call on the arch re-build, that's the bit you'll look at mainly and if you weren't happy with it, it'd always be there....watching...waiting....knowing...

[jms]

Re: 30"/760mm Scotland Pompeii

I got the insulation done today.

I lost track of how many layers I put on. It is at least 4"/10cm at the top, probably more. I have a few metres of blanket remaining (so I even covered the arch) so I might put that on tomorrow before I put up the brick outer layer. Can't have too much insulation right?