Forno Classico 100
There are many ways to install our Forno Classico ovens, your imagination is your only limit. Here we show you several styles, the first and second are similar, only difference is the metal frame for the hearth base support. The third is a metal frame. The fourth is your imagination, let us know how you installed it and we will add it here.
Build Style 1
You start with by building a form for the base. This particular base is quite tall due to future plans to elevate the nearby patio. The rebar will go along the edges and we placed a wire mesh near the top. Make sure you dig below your frost line if you live in a cold location, this is to avoid frost heave in the winter.
The rebar sticking up is so that the concrete cinder blocks will be held in when they go on the base. Just stack the block and then fill all the holes with concrete and then cover with stucco. You could also mortor the blocks together if you were not going to cover the base later.
The beginnings of the base support slab. There are many choices here, you can build a 5-6″ inch thick support slab, remember that this slab will have to support the weight of the oven. This oven used a steel base which shows that you have many options to build your Forno Classico Brick pizza oven.
Now the hearth is finally taking shape. The rebar sticking up is to allow the insulation layer to be attached to this base. By using steel the hearth will only be approx. 6″ tall, vs. 6″ of concrete and 4″ for the insulation. Its all up to you how you want to build this.
The cinder blocks as you can see are just stacked and then all the holes filed with rebar and concrete. this will be stucco’d when finished. The hearth is now finished, the outer edge you can see is concrete to hold up the weight of the oven and the center area will be under the cooking floor is vermicrete. Vermicrete is just vermiculite and cement and is used for insulation.
Now you can see the oven being prepared. At this stage we are marking the hearth base for the cooking floor tiles. Those will be installed first and then the oven lowered onto them. You can easily rent a engine hoist at your local tool rental place or invite a few very strong friends with the promise of delicious pizza in a few weeks.
The Forno Classico 100 is nearly finished. The chimney is your choice, you can make a brick chimney using bricks, most people use pre-fab flue bricks for this task. Or you can 8″ fireplace chimney, in this case stainless steel. This particular one is 4ft. due to other building close to the oven.
Build Style 2
You start with by building a form for the base. Make sure you dig below your frost line if you live in a cold location, this is to avoid frost heave in the winter. Obviously not required with the build pictured here.
Here you can see the cinder block that was installed on the base and some cores are already filled with concrete. The blocks were just stacked dry as this will be covered with cosmetic stone work later.
When you pour the hearth base, the wet concrete will be very heavy so make sure your form is strong. The temporary support is made of extra concrete blocks and lumber, remember to place supports in the middle to prevent the concrete from sagging as it dries. This frame will have a sheet of plywood placed on it to hold the concrete up. Also remember that all of this has to be removed when the concrete is dry so we suggest screws to make removal easier.
Now build a form around the outside of the base. The hearth support base will be approx. 5″-6″ thick in this oven.
You can now see the plywood “floor” in the middle of the base and the rebar that make up the hearth support base.
On top of the hearth support base goes the insulation layer. Here you can see that some short vertical rebar sections were drilled and installed into the base to lock the insulation layer onto the base. On this oven, the vermicrete will go fully across the entire base as it will all be covered by decorative tile work or granite.