Matteo Rossi

Thank you, i didn't expect It to turn out so nice 👍

I tested it the last winter and it worked fairly good, that's why i waited to plaster It (i had It done) and to purchase the soapstone top.

Guys, i'm happy to show you all the almost finished stove, i have to properly install the door and make the wood bench. Now i'm waiting for the plaster to fully cure and the temperatures to go down (today 20°C).

The stove performed well, due to the warm winter i did a single burn per day (about 15kg of wood). The only inconvenience is that i couldn't miss even one burn, the penalty was some smoke, so i plan to make a flap that cut the path of the exhaust in the bench, i hope that it ease the starting with a cold chimney.

This week i plan to disassemble it in order to look how it held up, since i haven't plastered it yet because the soapstone top arrived with many month of delay.

Hello everyone,
this summer, when i built my batchbox i was in a hurry, since i had only a couple of weeks to build it i haven't got any time to experiment, so during the construction i was wondering of various things, in particular i wondered  why the port needed to point to the center of the riser and not tangent to it.
Some weeks ago i went to a fair nearby me, there was a wood fired froling water heater on display ,  i took a couple of pics. Online you could find more of it.
Does someone already tryed to make a similar shaped port? also note the secondary air.
 


 

Here a couple of pics, right now i'm waiting for the soapstone top to arrive, after that i plan to plaster the vertical walls.

Hi guys, i built the stove, and tested it with small quantities of wood. It's working good It seems, It smoked a little Yesterday when i introduced some not so dry wood, and i noticed some leaks that i'm going to fix. Soon i'll be posting some pictures.

Peter van den Berg wrote:

Matteo Rossi wrote:Yesterday i sourced the regular bricks for the outer skin, for the inner i plan to use 3 cm thick refractory ones that i forgot to have stashed in a corner, i think that they will do their job.

Yes, that 3 cm split firebricks will do the job. Is being used before, in the Brussels build. Have a look, one of the pictures clearly shows the split bricks as the inner liner.

good, regarding the mortar, for the regular brick i plan to use a mix of sand and lime, for the refractory part, including the firebox, i bought a specific black mortar that is ready to use, no need to add water.

Peter van den Berg wrote:

Matteo Rossi wrote:i have to make a double skin construction It seems. I was hoping not to. It's necessary to use the ceramic blanket? Here the builders of mass heaters leave about a cm of air between the 2 skins.

It's not absolutely necessary to use ceramic blanket, just very handy to ensure not a single patch is making contact between inner and outer skin. Leaving one cm of air between skins sounds doable but in practise it isn't. Somewhere in the process of building the outer skin some mortar will be spilled in the gap. Making sure there's contact and inevitably at some point in time cracks will appear in the outer skin.

Some people use cardboard between skins in order to ensure separation between skins. The cardboard will turn to coal during the first really hot burn. But one have to make very sure there aren't any leaks in the outer skin, otherwise the room will be filled with smoke. I did such a thing once, not to be repeated. I used ceramic blanket about a dozen times with commendable results and I intend to stick with that.

 very good i will do like you suggest. Yesterday i sourced the regular bricks for the outer skin, for the inner i plan to use 3 cm thick refractory ones that i forgot to have stashed in a corner, i think that they will do their job.

Peter van den Berg wrote:

Matteo Rossi wrote: nice build the Mallorca, i see that you used normal bricks for everything and lined the top of the bell with ceramic blanket.

The top of the bell will be expanding and contracting quite a bit. So, there's an external shell that forms the construction. This lined with ceramic blanket and inside that a liner of firebricks. The inside liner can freely grow and shrink this way without cracking the external shell.

Another way to do this is to build two walls, completely separated from each other. This is called a double skin bell, with a liner of ceramic blanket between those skins so the whole of the inner skin has an expansion joint around it as well as a slip joint. The reason for this is that the inner skin will expand in all directions, vertically being the most.

It's up to you what you want. The more mass in the heater the longer it will take to warm up completely. On the other hand, a real heavy heater won't cool off for days when left alone. The Mallorca build is a half-way house, the lower part is single skin and the top part is double skin.

i have to make a double skin construction It seems. I was hoping not to. It's necessary to use the ceramic blanket? Here the builders of mass heaters leave about a cm of air between the 2 skins.