patrick Duthoit

Satamax, sounds like good and solid logics to me.

Where do you take that preheated air from? Can it be taken from the outside-air connection duct?.

When i did the test it indeed felt more as a normal wood burner, less as a rocket.


Hehehe, there are in life many things even more important than thought. Discovery is might!!!

Paul Stamets......my man!

Hei robert,

About the front air intake:

I want to make an outside-air connection ending up right behind the frontdoor. So if the frontdoor is closed the stove takes air from outside. When the door is opened, air is taken from inside.( and trapped smokebuildup gets sucked in aswell. Hopefully...?)

About the performance and the "peter-channel":

What do you mean by performance? Do you mean the "rocket-ness" or...?

The p-channel is new to me. i've looked into it a little, understand how it works but wondering if its worth placing. any experience there?


thanks

Hi,

So,this is my interpretation of the batchbox.

The glassdoor at the top i want to keep it closed during the mean burn. (i want to open it only for starting up or for cleaning out)
The metal door in the front is the main feeding, poking door.

In this way i don't have smoke when opening the frontdoor. When opening the glassdoor, there always a little trapped smoke.

To reduce the heat-stress on the top glass i've made the box a little longer so the glass is further away from the fire.

The testdrive went very well although there was a strong wind that day.

Greetings, Patrick

Hi everyone,

Thanks satamax for putting the concept "batchboxstove" in my mindbox.

After looking at some video's from that type of stove i was sold as a kittycat in a petshop.

Also, i'm coming back from the idea of splittin the ducts. (that's something i would like to testdrive (read: "play with") a little more first)

So, my plan is: a 8' inch riser type Peter van den Bergh with a 8' inch thermalduct, 7 elbows and about 15 feet long. The chimney is about 26 feet high.

But, i'm of topic now. It's about that splitting of ducts.

Here some thougths:

*The differ in flow between 2 ducts can be usefull too?i mean: the hot bench part and the milder hot bench part? catch my draft?

*What about the changing in the speed of flow if you're going from 8' inch to 6'inch or viseversa? (like the venturi of a carburator)

*you'll have more ducts to clean?


The comparisation water/ airflow is tempting but i'm not sure if that works all the way.

I'm thinking about the cilinderheads that are tuned on a flowbank. Polishing the intake and outlet too much is no good. Creating too much turbulence is also no go.
The flowing out of cilnderheads is a process of trying, failing, measuring,..trying again,..

Hope this is usefull

Greetings fellow firefreaks

Hei Allan,

First of all sorry for the late reply
But thanks for the nice and very good technical explanation. After some rethinking and redrawing i came up with the next:

I use a 8 inch riser, i have 7 elbow's and 15feet duct (= 50 feet of horizontal duct).So,

Can i place a chimney that is about 27 feet high, going insulated trough the top of the roof, after the horizontal part? or is this to high?

About the book, i have it, read it more or less, (i'm more of a "get the picture-man") and it's indeed THE book.
But the data you gave i can't find it anywhere in the book. (must be blind)

Also, i want the heater to take his air from outside. So,i placed a 8 inch duct under the floor.(about 16 feet long with 2 elbow of 45°)(coming from outside and goes close to the feeding tunnel)
At the top of the feeding tunnel i would place a glass door. If it's closed, the air comes in via the groundduct. When opened, while feeding the dragon, the air in the house is used.

any experience or thoughts in that field?

Greetings, Patrick

Hei everybody,

I'm thinking of building a RMH.

I wonder if there is a problem when i would split the thermal duct ,(right behind the barrel),in 2 ducts,and re-unit them again at the point where the chimney starts.

My question is: if the 2 ducts differ in lengt, will the airflow choose the shortest duct?

thanks!