Cubic Feet of your fire box ?

[Roospike]

Was reading a thread and a question came up of actual cubic feet of the fire box.

Anybody measure the inside of there fire box to figure the cubic feet ?
Wondering if manufacturers were measuring the fire box with or without the bricks and up to what point to the top.

The Summit is advertised as 3.0 cubic feet.

With the bricks in the stove from inside of bricks to bricks and from the top of the bottom bricks to the bottom of the secondary burn chamber.

I came up with 2.96 cubic feet. (with bricks )

I thought i was reading a post where the firebox was measured without bricks.

So...........what ch-got.

 

[Corie]

With bricks in, my stove has a firebox which is:


18" Long X 13.5" Deep X 12" Tall = 1.6875 sq ft.


Undersized for wood, purrrrrrrrrrfect for coal.

 

[wg_bent]

Was reading a thread and a question came up of actual cubic feet of the fire box.

Anybody measure the inside of there fire box to figure the cubic feet ?
Wondering if manufacturers were measuring the fire box with or without the bricks and up to what point to the top.

The Summit is advertised as 3.0 cubic feet.

With the bricks in the stove from inside of bricks to bricks and from the top of the bottom bricks to the bottom of the secondary burn chamber.

I came up with 2.96 cubic feet. (with bricks )

I thought i was reading a post where the firebox was measured without bricks.

So...........what ch-got.

Well this ought to be interesting. How do I measure the bay portion? nevermind.. I'll just fill it with water and see how much comes out of the hose. ;-)

 

[begreen]

I tried, but my tape measure melted in the heat... later perhaps.

 

[elkimmeg]

according to EPA certification it is measured by placing cut fir 2/4's in it

 

[BrotherBart]

The 30-NC measures exactly 3.0 CF measuring just the portion that they actually recommend loading. That being with the bricks in and measuring front to back, side to side and only to the top of the brick retainers. The other .5 CF is combustion area area above the brick retainers. Not loadable area.

 

[BrotherBart]

The gospel according to the EPA:

8.7 Wood Heater Firebox Volume.

8.7.1 Determine the firebox volume using the
definitions for height, width, and length in Section 3.
Volume adjustments due to presence of firebrick and other
permanent fixtures may be necessary. Adjust width and
length dimensions to extend to the metal wall of the wood
heater above the firebrick or permanent obstruction if the
firebrick or obstruction extending the length of the side(s)
or back wall extends less than one-third of the usable
firebox height. Use the width or length dimensions inside
the firebrick if the firebrick extends more than one-third
of the usable firebox height. If a log retainer or grate is
a permanent fixture and the manufacturer recommends that no
fuel be placed outside the retainer, the area outside of the
retainer is excluded from the firebox volume calculations.

8.7.2 In general, exclude the area above the ash lip
if that area is less than 10 percent of the usable firebox
volume. Otherwise, take into account consumer loading
practices. For instance, if fuel is to be loaded
front-to-back, an ash lip may be considered usable firebox
volume.

8.7.3 Include areas adjacent to and above a baffle
(up to two inches above the fuel loading opening) if four
inches or more horizontal space exist between the edge of
the baffle and a vertical obstruction (e.g., sidewalls or
air channels).

From section three:

3.5 Height means the vertical distance extending
above the loading door, if fuel could reasonably occupy that
space, but not more than 2 inches above the top (peak
height) of the loading door, to the floor of the firebox
(i.e., below a permanent grate) if the grate allows a 1-inch
diameter piece of wood to pass through the grate, or, if
not, to the top of the grate. Firebox height is not
necessarily uniform but must account for variations caused
by internal baffles, air channels, or other permanent
obstructions.

3.6 Length means the longest horizontal fire chamber
dimension that is parallel to a wall of the chamber.

3.16 Width means the shortest horizontal fire chamber
dimension that is parallel to a wall of the chamber.

 

[babalu87]

10 hour burns worth
Its at or around 2.5 cubic feet.

 

[NWfuel]

Mine is large enough that I only have to clean it every couple seasons. enough of that, the Sweet Home looks to be 22" deep 18" wide and 16" high which is about 3.591 cu ft.
Thomas