Compression Furnace

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Size	15x11
Where	Compound

Source

This building becomes available after you have learned the Metallurgy tech.

Compare all Furnaces.

Cost

• 100 Clay
• 3 Crucible
• 200 Firebricks
• 5 Iron Bars

Use

• Smelt any ore to produce metal. For example:
• Smelt Copper Ore to produce Copper
• Smelt Iron Ore to produce Iron
• Smelt Tin Ore to produce Tin
• Smelt Lead Ore to produce Lead

Uses Charcoal for fuel.

Operation

• Holds up to 500 ore
• Holds up to 20 Charcoal
• Burns 1 Charcoal per minute for a maximum of 20 minutes
• The theoretical time to generate one metal appears to be 40000 / ore amount. The actual time is modified by rounding. (See the discussion page for more details.)

Recipes

Confirmed	Ore	Charcoal	Metal Result	% Yield (Metal per Ore)	CC per Metal	Clinker
Yes	500	20	15	3.0	1.33
Yes	500	19	15	3.0	1.27
Yes	500	16	12	2.4	1.33	488
Yes	500	15	12	2.4	1.25
Yes	500	14	11	2.2	1.27
Yes	500	13	10	2.0	1.3
Yes	500	10	8	1.6	1.25
Yes	500	4	3	0.6	1.333
Yes	500	3	3	0.6	1
Yes	500	2	2	0.4	1
Yes	500	1	1	0.2	1
Yes	484	20	15	3.1	1.33
Yes	483	20	14	2.9	1.43
Yes	483	19	14	2.9	1.36
Yes	466	20	14
Yes	390	20	12	3.08	1.67
Yes	300	13	6	2.0	2.17
	200	20	6	3.0	3.33
	200	19	6	3.0	3.17

Note: the 200 ore/18 charcoal was performed by opening the furnace at about 18:15 into the process recovering left over charcoal and metal.