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Here's the construction manual for my special pizzaoven.
If you're only interested in the free building-documentation please scroll down a bit.

If you want to order the manual just send me a mail:
please mention you address as well!

info@spoerl-online.de

pizza oven building instruction 

latest pic:


I tried hard to get the "real Pizza", with big sucess
Dough perfectly, perfectly seasoned coating.



Heart, what more do you want?  Cozy heat (450 ° C) and a
 Pizza, like in Bella Italia, perhaps even a bit better
 (... at least say so my guests).
 The first way, there's pizza on 14.08.2007
 -approximately 7 weeks after breaking ground.



Blessed is the one who calls a metalworker his friend.  My fried Harry has welded the oven door. Patent pending (almost)!



 Now my furnace scored his garment. 
 I chose the heating phase every 3-4 days, the plaster is still whitewashed and not later than mid-August, I will insert a Pizza
for the first time. Update 2.8.07: furnace was the third time
 heated for 1 hour at 250-300 degrees.



My oven swallows 3 packs of outer plaster.  In particular, the upper arch, I plastered with devotion - the edges are pretty difficult to draw without steel coating...



And he smokes well. After my oven has passed the
 baptism of fire I can care about the outer shape.



FIRE!!  I couldn't wait any longer. On
 27.7.  I heated up very carefully!
 Maximum of 180-200 degrees for about a 3 / 4 hours.



26.7.2007 - more than a month after the start of construction:
 "Facade" almost done.  I will look  for good wood. 
For the curing and heating -
 I scheduled all in all two and a half weeks.
 In mid-August, I probably go to full load.



 Tidy up! To make you beautiful: the front end
 indeed is lacking - which adds an additional
concrete before plastering. Cover the hard polished clinker!



Managed to keep the inner!  The rest of the sand
is removed the best way with a vacuum cleaner from the
combustion chamber.



 For long I've been looking forward to this day and was fightend the same way. After I've really spent a lot of concrete for the shell, there was so much weight on the sand hills in the interior that I could only hope for the statics of the dome ...



The last layer of  concrete with a lot of sandand made
well wet. You can get a real glimpse of the final form.



The 1st  part of the outer shell has hardened. 
It is followed by a second layer, which already reflects
the final form of 99%. 


The thermometer is installed in this step. I have protected it
with a Pad in front of the concrete, so I can exchange it at any time.
 Incidentally, the thermometer is pointing in the oven-tube!



After the insulation has been incorporated, 
I have no doubts that the concrete (not fireproof) tears.
 So always gently bring up layer by layer by hand.



Now it's getting bizarre: The front of the oven is supposed
to be plastered. So get some stones in row to get a clean frontwall.



A couple of days and talks later (Thanks Geoffrey!) I
 inserted an insulating layer of glass wool between the
inner and  outer shell covering.  


After the concrete gets hard hydraulically , I have kept it
wet for 24 hours.  After 2 days of hardening I made a second
layer of chamotte concrete inserting the wire net, too. 


The inner shell: fireclay concrete. The mass is carefully
drawn by hand on the sand and compacted with wire.


 It took me about 3 days until the negative was done out of sand.
 That's worth it, because it was as smooth as a baby's back...
 Just take any kind of sand, don't be so freaky as I was  and search for weks for the right sand.
 Ah yes, on the picture you'll see a trophy from Alfonso: A lance thermometer to 500 degrees.  By the way: It must not be the expensive one, just buy the complete manual to check out a much cheaper way!


Now comes the crucial construction phase. 
The internal shape of the furnace is formed of sand as a negative.  Background: I do not want a tube oven, but a real dome.
 And whoever wants to make a joke on a bricklayer, ask him
 whether he can make a dome of that size out of bricks.
 


 Make it sure: lattice braid!



And again a big step further:
 The second form is done (again with template)
 and the clay bricks are fixed to the false ceiling



Let the concrete harden for at least 3 days.
 So lets start with the bottom of the oven!
 For this I have used fire clay brick.  These small bricks are
cheaper  to the square times  than the big boards.



 The edges of the formwork were exactly aligned with the bubble
and concrete was inserted, until it ran over the border.
 Then simply pull off with a long aluminum track and smooth.



A short hop across a couple of steps.
 You can see the formwork with reinforcing the false ceiling.
 Just do it all similar to the base slap.



Et voila! just fill in the gaps to the must-have height
and align it carefully.



There it is: the round arch.  Although I was quite afraid of this building step, it has proven over the course of the work to be fairly simple.
 Important: The length of the outer side length must exceed the length of clinker by about 2 cm!



The final height of the substructure was quickly reached.
But the all-important archis still missing...



Floor slab has cured. Tiles are aligned and I'm ready to
start working on the walls



Here's the base plate. 20 cm thick and strongly reinforced



As a next step there was the shuttering of the base plante.
Don't forget to insert structural steel
(It can be a second hand steel, too)



The blinding layer is quit important in Bavaria, as temperatures of -10  to -20 degrees below zero are quite "popular" each winter.
15 cm "Wandkies" + 10 cm "Quetschsand" (sorry folks I don't know the exact translation of these terms)


First the substructure of the floor slab.
And not to be misunderstood: everything done by hand



The first "stone": 22.06.2007