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Kit (Furnace)

Volume	1000 L
Recipe
Created With	Autolathe, Fabricator
Cost	30g Iron, 10g Copper
Logic
Logic Parameters	Open Pressure Temperature Lock Setting Reagents RatioOxygen RatioCarbonDioxide RatioNitrogen RatioPollutant RatioVolatile RatioWater Maximum Ratio ImportQuantity ImportSlotOccupant ExportQuantity ExportSlotOccupant

Furnace

Construction
Placed with	Kit (Furnace)
Placed on	Small Grid
Stage 1
Next Stage Construction
Constructed with tool	Wrench
Constructed with item	2x Iron Sheets
Deconstruction
Deconstructed with	Crowbar
Item received	Kit (Furnace)
Stage 2
Next Stage Construction
Constructed with tool	Welding Torch
Constructed with item	2x Iron Sheets
Deconstruction
Deconstructed with	Crowbar
Item received	2x Iron Sheets
Stage 3
Deconstruction
Deconstructed with	Angle Grinder
Item received	2x Iron Sheets

Description

Used to smelt ore into ingots and alloys using an oxygen/volatile gas mix. Ice (Oxite) and Ice (Volatiles) can be manually input directly in the furnace in order to create crude gas mixtures, or to be directly extracted as an easy trick for melting the ice.

If the contents of the furnace are ejected without reaching the required temperature and pressure for smelting, they'll come out as Reagent Mix which can be processed in a Centrifuge to recover the raw ores. Reagent Mix can also be re-smelted if the ingredients and ratios are a valid alloy recipe. This allows an intermission when the resources for reaching the required temperature / pressure are not on hand / need to be gathered first. Effectively, this means that the used metals can be 'reserved' for the intended alloy.

The Furnace can be used to smelt basic ores and simpler alloys, but an Advanced Furnace will be required for the more complex alloys.

An Arc Furnace (included in the starting gear) is required to make the metals for manufacturing a Furnace. By comparison, the Furnace can do everything the Arc Furnace can do, but without using electricity.

Recipes

While smelting most alloys is easily achieved with ice, some other recipes usually require a working piping setup (a valve and passive vent at bare minimum to vent the internal gasses). This can be done by separating gases into tanks using atmospheric units and piping individual gases through a mixer and a Pressure Regulator or a Pipe Volume Pump connected to the furnace input. Another method would be to mix Volatile ices and Oxite ices in an Ice Crusher to produce fuel.
The Furance's output can also be extracted and vented/recycled through a backpressure regulator to keep furnace pressure in check. The optimal gas mix that burns completely is 1 part (33.3%) oxygen to 2 parts (66.6%) volatiles, other mixes would also work but leave you with leftover oxygen or volatiles depending on the percentages used. It could also result in lower temperature if that is desired, but you could also use a volume pump with a lower fuel input setting.

Make sure to put the fuel in first, then press the activate button. Afterwards put in the ingredients and press the handle after you see the "will produce" while hovering over the furnace. Also, You MUST put in exact amounts matching the recipe amounts. For instance, you must put in 12 iron and 4 coal to make 16 steel. You cannot put in 12 iron and 7 coal. The furnace will not manufacture anything if the ingredient ratios are not correct and you will have to eject it all or add resources to balance the recipe.

Ingot	Input	Pressure (MPa)		Temperature (K)		Temperature (°C)
		Min	Max	Min	Max	Min	Max
1 Charcoal	1 Biomass	0.1 MPa	100 MPa	580 K	100 kK	307°C	99726°C
1 Silicon	1 Silicon	0.1 MPa	100 MPa	900 K	100 kK	627°C	99726°C
1 Iron	1 Iron	0.1 MPa	100 MPa	800 K	100 kK	527°C	99726°C
1 Gold	1 Gold	0.1 MPa	100 MPa	600 K	100 kK	327°C	99726°C
1 Copper	1 Copper	0.1 MPa	100 MPa	600 K	100 kK	327°C	99726°C
1 Silver	1 Silver	0.1 MPa	100 MPa	600 K	100 kK	327°C	99726°C
1 Lead	1 Lead	0.1 MPa	100 MPa	400 K	100 kK	127°C	99726°C
1 Nickel	1 Nickel	0.1 MPa	100 MPa	800 K	100 kK	527°C	99726°C
4 Steel	3 Iron 1 Coal	1 MPa	100 MPa	900 K	100 kK	627°C	99726°C
2 Electrum	1 Silver 1 Gold	0.8 MPa	2.4 MPa	600 K	100 kK	327°C	99726°C
2 Invar	1 Iron 1 Nickel	18 MPa	20 MPa	1.2 kK	1.5 kK	927°C	1227°C
2 Constantan	1 Copper 1 Nickel	20 MPa	100 MPa	1 kK	10 kK	727°C	9726°C
2 Solder	1 Iron 1 Lead	1 MPa	100 MPa	350 K	550 K	77°C	277°C
Update 0.2.2768.13597 - Thu 11/02/2021 /Recipes

Tips

• Placing 15 ice(volatiles) and 15 ice(oxite) will bring pressure to around 22000kpa and temp 2000k. For Invar, you will have to wait for the temperature to drop before you can process. You can use this time while the pressure is still over 20000kpa to make constantan.
  
• All other alloys can be achieved with a ratio of 2 volatiles to 1 oxite
• If atmosphere inside and/or around furnace is too cold to melt ice one can press 'activate' button to manually melt one ice per ignition attempt. You will need to press the ignition button for each piece of ice from the first stack that you put in. Until all solid matter was melted the import slot will remain blocked.
• Reagent Mix can be re-melted to continue balancing the recipe should you need to gather more resources or find yourself unable to balance the temperature/pressure manually.

Some example fuel mixes

Prime	FAR	In: Mols		Result			Out: Mols
		H2	O2	Press.	Celcius	Kelvin	O2	H2	Co2	X
100 kPa	2:1	29	14	2 135	1 953	2 216	1	3	82	33
200 kPa	2:1	59	29	4 500	2 000	2 273	1	5	169	80
200 kPa	3:1	65	21	3 400	1 900	2 173	2	26	118	52
200 kPa	4:1	72	18	3 000	1 800	2 273	1	40	99	42
200 kPa	1:1	43	43	3 493	1 917	2 190	22	2	127	59
200 kPa	1:4	17	68	1 646	1 319	1 592	63	2	50	18
300 kPa	2:1	86	42	6 850	2 109	2 382	2	7	242	115
902.7 kPa	2:1	263	108	19.25 MPa	2 054	2 357	70	7	767	151
1 MPa	2:1	291	120	21.62 MPa	2 061	2 334	74	7	862	170
1.497 MPa	2:1	408	204	35.34 MPa	2 121	2 394	10	20	1163	581

Some example alloy recipes

Ice only recipes

The ices should be loaded into the Furnace and ignited, and then the ores should be loaded immediately after. No wait time is necessary. Make sure to put the fuel in first, then press the activate button. Afterwards put in the ingredients and wait for the button to turn green again, or until you see the "will produce" while hovering over the furnace. Then pull the handle and your alloy will be ejected.

Ice Chunks	Ingredients	Temperature	Pressure	Alloy
2 Volatiles 1 Oxite	75 Iron Ore 25 Coal	1.05 kK	6.2 MPa	100 Steel
12 Volatiles 6 Oxite	50 Copper Ore 50 Nickel Ore	1.81 kK	21 MPa	100 Constantan
8 Volatiles 24 Oxite	50 Nickel Ore 50 Iron Ore	1.5 kK	19 MPa	100 Invar
1 Volatiles 1 Oxite	50 Silver Ingot *** 50 Gold Ingot ***	997 K	1.1 MPa	100 Electrum
1 Volatiles 2 Nitrice 3 Water Ice	50 Lead Ingot *** 50 Iron Ore	528 K	1.16 MPa	100 Solder

*** Ingots are used instead of raw ores to prevent the production of extra gases when making these recipes