7.6 Three chains; no forms.
7.7. A keystone locks each course in place.
7.8. Six chains, with forms.
Start each chain either next to, or over the oven opening.
This will allow you to set your keystone where it cannot be
seen when you look inside the oven. The keystone is a
specially cut brick that locks each chain into place. When
you reach the end of each chain, where you cannot fit the
last full-size brick, make a paper template of the piece that
is required to finish the chain. Transfer the template to your
brick, and make your cut. The keystone should be tight, and
require that you lightly tap it into place, but not so tight that
it causes the rest of the bricks in the chain to shift (Photo
7.7).
7.9. Closing in.
Tips and Hints
There are three ways of cutting the bricks for your dome:
you can either purchase an inexpensive tile saw, or rent
one; you can use a diamond-coated masonry blade on a
standard circular saw or grinder (see Appendix 1 for more
information); or you can score your bricks and break them.
Read our high heat mortar section (see Appendix 6) for
more information.
Pompeii Oven Instructions
© Forno Bravo, LLC 2007-2009. All Rights Served.
Ver. 2.0
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