EVENT	Date	October (11) 2020
	Description	Icelandic stone block
	Goal	course
	Team	Darrell Markewitz
		Bram Porter
	records	Darrell Markewitz
FURNACE	Type	Norwegian / Icelandic
	Material	granite block, clay fill
	Interior		25
	Height		100
	Stack		70
	Base		≠ 20
	Packing	charcoal fines	10
	Tuyere	standard copper
	Diameter		2
	Angle		≠ 25
	Proud		5
	Air System	standard electric blower
	Extraction	bottom via arch
MATERIALS	Ore	DD 2 (red + ≠ 16% scale)
	Charcoal	Oak
CLOCK	ELAPSED	EVENT	AIR		CHARCOAL			ORE
absolute					UNIT	COUNT	TOTAL	Unit	TOTAL
			pressure	LpM	bucket		kg	kg	kg
			psi				1.8
1035		start wood twig pre-heat
1043		very gentle air (green branches)
1140		increase air		250
1200	T 1:25	seal arch, charcoal to tuyere		400	1
1205		main sequence start - fill with rough			4	5	9.00
1208		air increased		800
1223		start graded fuel
1229		probed to settle			2	7	12.60
1241	12				1	8	14.40
1257	16				1	9	16.20
1306	9				1	10	18.00
1327	21				1	11	19.80
1332	15	air increased		1000	1	12	21.60
1400	28	add slag, air increased (possible +2?)		1200	1	13	23.40	1 S	1 S
1414	14				1	14	25.20	1 S	2 S
1428	14				1	15	27.00	1 S	3 S
1443	15				1	16	28.80	1 S	4 S
1457	14	first ore added (4 x 250 gm)			1	17	30.60	1	1
1510	13				1	18	32.40	1	2
1523	13				1	19	34.20	1	3
1537	14	ore increase (3 x 500 gm)			1	20	36.00	1.5	4.5
1605	28	* possible two additions *			1	21	37.80	1.5	6
1620	15				1	22	39.60	1.5	7.5
1637	13	ore increase (4 x 500 gm)			1	23	41.40	2	9.5
1650	13				1	24	43.20	2	11.5
1700	10				1	25	45.00	2	13.5
1718	18	ore increase (3 x 1000 gm)			1	26	46.80	3	16.5
1734	16	ore additions alternate			1	27	48.60	2	18.5
1748	14				1	28	50.40	3	21.5
1759	11				1	29	52.20	2	23.5
1816	17				1	30	54.00	3	26.5
1826	10	last ore addition			1	31	55.80	2	28.5
1836	10	charcoal to cover			1	32	57.60
1846	10				1	33	59.40
		start burn down
TOTALS
	Charcoal		59	kg
	Ore	plus 4 kg tap slag	28.5	kg
	Bloom		5.5	kg
	Gromps	(recovered after cutting)	1	kg
	Yield		19	%
	Condition	very crumbly (may be temperature)
	Quality